fix warnings

30 files changed, 104 insertions, 427 deletions

diff --git a/include/administration.hpp b/include/administration.hpp
index 2d6d621..51e72d8 100644
--- a/include/administration.hpp
+++ b/include/administration.hpp
@@ -489,9 +489,9 @@ namespace administration {
 
     // Setup functions.
     // =======================
-    void        create_empty(char* save_file);
-    void        create_default(char* save_file);
-    void        create_from_file(char* save_file);
+    void        create_empty(const char* save_file);
+    void        create_default(const char* save_file);
+    void        create_from_file(const char* save_file);
     void        destroy();
     void        sort_data();
 
@@ -519,11 +519,11 @@ namespace administration {
     
     // Other functions.
     // =======================
-    char*       get_file_path();
+    const char* get_file_path();
     s32         get_next_id();
     s32         get_next_sequence_number();
-    char*       get_currency_symbol_for_currency(char* code);
-    char*       get_default_currency();
+    const char* get_currency_symbol_for_currency(const char* code);
+    const char* get_default_currency();
     time_t      get_default_invoice_expire_duration();
     ai_service  get_active_ai_service();
     ai_service  get_ai_service(ai_provider provider);
@@ -563,7 +563,7 @@ namespace administration {
     a_err       project_remove(project data);
     void        project_cancel(project data);
     a_err       project_is_valid(project data);
-    char*       project_get_status_string(project data);
+    const char* project_get_status_string(project data);
     u32         project_get_all(project* buffer);
     u32         project_get_partial_list(u32 page_index, u32 page_size, project* buffer);
     a_err       project_get_by_id(project* buffer, char* id);
@@ -610,7 +610,7 @@ namespace administration {
     void        invoice_destroy(invoice* invoice); 
     a_err       invoice_is_valid(invoice* invoice);
     bool        invoice_has_intra_community_services(invoice* invoice);
-    char*       invoice_get_status_string(invoice* invoice);
+    const char* invoice_get_status_string(invoice* invoice);
     u32         invoice_get_partial_list_outgoing(u32 page_index, u32 page_size, invoice* buffer);
     u32         invoice_get_partial_list_incomming(u32 page_index, u32 page_size, invoice* buffer);
     u32         invoice_get_all(invoice* buffer);
@@ -635,7 +635,7 @@ namespace administration {
     // Activity functions.
     // ===================
     a_err       activity_import(activity ac);
-    a_err       activity_add(char* user, char* ref_id, char* message);
+    a_err       activity_add(const char* user, const char* ref_id, const char* message);
     u32         activity_get_all_for_object(activity* buffer, char* ref_id);
     u32         activity_count();
     a_err       activity_get_by_index(u32 index, activity* buffer);
diff --git a/include/config.hpp b/include/config.hpp
index 7650e75..b7b38d5 100644
--- a/include/config.hpp
+++ b/include/config.hpp
@@ -34,9 +34,9 @@
 #define SIMULATE_SLOW_DISK      0
 #define SIMULATE_WRITE_FAILURE  0
 
-namespace config {
-    static const char* PROGRAM_VERSION = "0.1.0"; // major.minor.patch
+#define PROGRAM_VERSION "0.1.0" // major.minor.patch
 
+namespace config {
     namespace colors {
         static const ImU32 COLOR_ERROR_OUTLINE = IM_COL32(255, 0, 0, 80);
         static const ImU32 COLOR_ERROR = IM_COL32(235, 64, 52, 255);
diff --git a/include/countries.hpp b/include/countries.hpp
index 1595b85..de91dab 100644
--- a/include/countries.hpp
+++ b/include/countries.hpp
@@ -39,14 +39,14 @@ namespace country {
     s32     get_count();
     const char*   get_code_by_index(s32 index);
 
-    time_t  get_default_invoice_expire_duration(char* country_code);
+    time_t  get_default_invoice_expire_duration(const char* country_code);
 
     bool    is_EU(const char* country_code);
     bool    is_enabled(const char* country_code);
     bool    tax_is_implemented(const char* country_code);
-    void    fill_tax_report_with_categories(char* country_code, tax_report* report);
-    bool    add_billing_item_to_tax_report(char* country_code, tax_report* report, invoice* inv, billing_item* item);
-    float   calculate_tax_report_final(char* country_code, tax_report* report);
-    time_t  get_invoice_date_to_use_for_tax_report(char* country_code, invoice* inv);
+    void    fill_tax_report_with_categories(const char* country_code, tax_report* report);
+    bool    add_billing_item_to_tax_report(const char* country_code, tax_report* report, invoice* inv, billing_item* item);
+    float   calculate_tax_report_final(const char* country_code, tax_report* report);
+    time_t  get_invoice_date_to_use_for_tax_report(const char* country_code, invoice* inv);
     u32     get_available_tax_rates(const char* country_code, tax_rate* buffer, u32 buffer_size);
 }
diff --git a/include/exporter.hpp b/include/exporter.hpp
index 82c18b2..3ac57b0 100644
--- a/include/exporter.hpp
+++ b/include/exporter.hpp
@@ -42,8 +42,8 @@ namespace exporter {
         time_t done_at;
         e_err error;
         status status;
-        char* sender;
-        char* recipient;
+        const char* sender;
+        const char* recipient;
         const char* subject;
         const char* text;
         send_email_callback callback;
@@ -51,10 +51,10 @@ namespace exporter {
 
     typedef struct
     {
-        char* provider_name;
-        bool (*send_email)(char* sender, char* recipient, const char* subject, const char* text);
+        const char* provider_name;
+        bool (*send_email)(const char* sender, const char* recipient, const char* subject, const char* text);
     } email_provider_impl;
 
     email_provider_impl get_email_provider_implementation(email_provider provider);
-    exporter::export_request* send_email(char* sender, char* recipient, const char* subject, const char* text, send_email_callback ev);
+    exporter::export_request* send_email(const char* sender, const char* recipient, const char* subject, const char* text, send_email_callback ev);
 }
\ No newline at end of file
diff --git a/include/importer.hpp b/include/importer.hpp
index 2360d29..b432b45 100644
--- a/include/importer.hpp
+++ b/include/importer.hpp
@@ -62,18 +62,18 @@ namespace importer {
 
     typedef struct 
     {
-        char* provider_name;
-        char* default_model;
-        bool (*upload_file)(char* file_path, char* file_id, size_t file_id_len);
-        bool (*query_with_file)(const char* query, size_t query_length, char* file_id, char** response);
-        bool (*batch_query_with_file)(const char** queries, size_t query_count, char* file_id, invoice* buffer, batch_query_response_handler response_handler);
+        const char* provider_name;
+        const char* default_model;
+        bool (*upload_file)(const char* file_path, char* file_id, size_t file_id_len);
+        bool (*query_with_file)(const char* query, size_t query_length, const char* file_id, char** response);
+        bool (*batch_query_with_file)(const char** queries, size_t query_count, const char* file_id, invoice* buffer, batch_query_response_handler response_handler);
         bool (*get_available_models)(model_list_request* buffer);
     } ai_provider_impl;
 
     typedef struct 
     {
-        char* provider_name;
-        bool (*send_email)(char* sender, char* recipient, const char* subject, const char* text);
+        const char* provider_name;
+        bool (*send_email)(const char* sender, const char* recipient, const char* subject, const char* text);
     } email_provider_impl;
 
     const char* error_to_string(i_err error);
diff --git a/include/logger.hpp b/include/logger.hpp
index 0f8d658..b37f343 100644
--- a/include/logger.hpp
+++ b/include/logger.hpp
@@ -41,7 +41,7 @@ namespace logger {
 
     void clear();
     void aerr(a_err errors);
-    void info(const char* fmt, ...) IM_FMTARGS(2);
-    void error(const char* fmt, ...) IM_FMTARGS(2);
+    void info(const char* fmt, ...) IM_FMTARGS(1);
+    void error(const char* fmt, ...) IM_FMTARGS(1);
 
 }
\ No newline at end of file
diff --git a/include/ui.hpp b/include/ui.hpp
index 54d3e97..4636601 100644
--- a/include/ui.hpp
+++ b/include/ui.hpp
@@ -111,7 +111,7 @@ namespace ImGui
     void ProjectDropdown(char* project_id);
     void TaxRateDropdown(char* tax_internal_code, bool outgoing, bool has_error);
     bool CurrencyDropdown(char* currency);
-    void ToggleDropdown(bool *buffer, char* option1, char* option2);
+    void ToggleDropdown(bool *buffer, const char* option1, const char* option2);
 
     bool BeginExportDropdown(const char* title, const char* text, exporter::export_request* active_request);
 }
\ No newline at end of file
diff --git a/libs/xml.c/src/xml.c b/libs/xml.c/src/xml.c
index 0b435cd..4b8cb65 100644
--- a/libs/xml.c/src/xml.c
+++ b/libs/xml.c/src/xml.c
@@ -1147,7 +1147,7 @@ void xml_string_copy(struct xml_string* string, uint8_t* buffer, size_t length)
 	memcpy(buffer, string->buffer, length);
 }
 
-s64 xml_get_s64(struct xml_node* root, char* child_name)
+s64 xml_get_s64(struct xml_node* root, const char* child_name)
 {
     struct xml_node* node = xml_easy_child(root, (uint8_t *)child_name, 0);
 
@@ -1163,7 +1163,7 @@ s64 xml_get_s64(struct xml_node* root, char* child_name)
     return num;
 }
 
-s32 xml_get_s32(struct xml_node* root, char* child_name)
+s32 xml_get_s32(struct xml_node* root, const char* child_name)
 {
     struct xml_node* node = xml_easy_child(root, (uint8_t *)child_name, 0);
     if (!node) return 0;
@@ -1180,7 +1180,7 @@ s32 xml_get_s32(struct xml_node* root, char* child_name)
     return num;
 }
 
-struct xml_node* xml_get_node_x(struct xml_node* root, char* child_name, ...)
+struct xml_node* xml_get_node_x(struct xml_node* root, const char* child_name, ...)
 {
     va_list arguments;
 	va_start(arguments, child_name);
@@ -1189,7 +1189,7 @@ struct xml_node* xml_get_node_x(struct xml_node* root, char* child_name, ...)
     return node;
 }
 
-char* xml_get_str_attribute(struct xml_node* root, char* buffer, size_t bufsize, char* attribute_name, char* child_name, ...)
+char* xml_get_str_attribute(struct xml_node* root, char* buffer, size_t bufsize, const char* attribute_name, const char* child_name, ...)
 {
     va_list arguments;
 	va_start(arguments, child_name);
@@ -1217,7 +1217,7 @@ char* xml_get_str_attribute(struct xml_node* root, char* buffer, size_t bufsize,
     return 0;
 }
 
-s32 xml_get_s32_x(struct xml_node* root, char* child_name, ...)
+s32 xml_get_s32_x(struct xml_node* root, const char* child_name, ...)
 {
     va_list arguments;
 	va_start(arguments, child_name);
@@ -1237,7 +1237,7 @@ s32 xml_get_s32_x(struct xml_node* root, char* child_name, ...)
     return num;
 }
 
-float xml_get_float(struct xml_node* root, char* child_name)
+float xml_get_float(struct xml_node* root, const char* child_name)
 {
     struct xml_node* node = xml_easy_child(root, (uint8_t *)child_name, 0);
     if (!node) return 0;
@@ -1252,7 +1252,7 @@ float xml_get_float(struct xml_node* root, char* child_name)
     return val;
 }
 
-float xml_get_float_x(struct xml_node* root, char* child_name, ...)
+float xml_get_float_x(struct xml_node* root, const char* child_name, ...)
 {
     va_list arguments;
 	va_start(arguments, child_name);
@@ -1270,7 +1270,7 @@ float xml_get_float_x(struct xml_node* root, char* child_name, ...)
     return val;
 }
 
-char* xml_get_str(struct xml_node* root, char* buffer, size_t bufsize, char* child_name)
+char* xml_get_str(struct xml_node* root, char* buffer, size_t bufsize, const char* child_name)
 {
     struct xml_node* node = xml_easy_child(root, (uint8_t *)child_name, 0);
     if (!node) return 0;
@@ -1283,7 +1283,7 @@ char* xml_get_str(struct xml_node* root, char* buffer, size_t bufsize, char* chi
     return buffer;
 }
 
-char* xml_get_str_x(struct xml_node* root, char* buffer, size_t bufsize, char* child_name, ...)
+char* xml_get_str_x(struct xml_node* root, char* buffer, size_t bufsize, const char* child_name, ...)
 {
     va_list arguments;
 	va_start(arguments, child_name);
@@ -1300,7 +1300,7 @@ char* xml_get_str_x(struct xml_node* root, char* buffer, size_t bufsize, char* c
 }
 
 #include <time.h>
-time_t xml_get_date_x(struct xml_node* root, char* child_name, ...)
+time_t xml_get_date_x(struct xml_node* root, const char* child_name, ...)
 {
     va_list arguments;
 	va_start(arguments, child_name);
diff --git a/libs/xml.c/src/xml.h b/libs/xml.c/src/xml.h
index 43e7f0f..9997a76 100644
--- a/libs/xml.c/src/xml.h
+++ b/libs/xml.c/src/xml.h
@@ -202,16 +202,16 @@ void xml_string_copy(struct xml_string* string, uint8_t* buffer, size_t length);
 #define u64 uint64_t
 
 /// Custom OpenBooks functions.
-s64         xml_get_s64(struct xml_node* root, char* child_name);
-s32         xml_get_s32(struct xml_node* root, char* child_name);
-struct xml_node*   xml_get_node_x(struct xml_node* root, char* child_name, ...);
-char*       xml_get_str_attribute(struct xml_node* root, char* buffer, size_t bufsize, char* attribute_name, char* child_name, ...);
-s32         xml_get_s32_x(struct xml_node* root, char* child_name, ...);
-float       xml_get_float(struct xml_node* root, char* child_name);
-float       xml_get_float_x(struct xml_node* root, char* child_name, ...);
-char*       xml_get_str(struct xml_node* root, char* buffer, size_t bufsize, char* child_name);
-char*       xml_get_str_x(struct xml_node* root, char* buffer, size_t bufsize, char* child_name, ...);
-time_t      xml_get_date_x(struct xml_node* root, char* child_name, ...);
+s64         xml_get_s64(struct xml_node* root, const char* child_name);
+s32         xml_get_s32(struct xml_node* root, const char* child_name);
+struct xml_node*   xml_get_node_x(struct xml_node* root, const char* child_name, ...);
+char*       xml_get_str_attribute(struct xml_node* root, char* buffer, size_t bufsize, const char* attribute_name, const char* child_name, ...);
+s32         xml_get_s32_x(struct xml_node* root, const char* child_name, ...);
+float       xml_get_float(struct xml_node* root, const char* child_name);
+float       xml_get_float_x(struct xml_node* root, const char* child_name, ...);
+char*       xml_get_str(struct xml_node* root, char* buffer, size_t bufsize, const char* child_name);
+char*       xml_get_str_x(struct xml_node* root, char* buffer, size_t bufsize, const char* child_name, ...);
+time_t      xml_get_date_x(struct xml_node* root, const char* child_name, ...);
 
 
 #ifdef __cplusplus
diff --git a/run_linux64.sh b/run_linux64.sh
index 7f87d6c..8d7cefc 100755
--- a/run_linux64.sh
+++ b/run_linux64.sh
@@ -11,7 +11,7 @@ SOURCES=$(find src -type f \( -name "*.cpp" \) ! -path "src/countries/*")
 
 # Compiler flags.
 LIBS="-lstdc++ -lglfw -lGL -lm -lssl -lcrypto"
-FLAGS="-Wall -Wno-changes-meaning -Wno-write-strings -Wno-attributes -Wno-unused-variable -fpermissive -Wno-format-zero-length -ggdb"
+FLAGS="-Wall -Wno-changes-meaning -ggdb -Wfatal-errors"
 DEFINITIONS="-D_DATE_=\"$DATE\""
 
 INCLUDE_DIRS="-Ilibs/openssl-3.6.0-beta1/x64/include -Ilibs/ -Iinclude"
diff --git a/src/administration.cpp b/src/administration.cpp
index f69ae9d..3905c74 100644
--- a/src/administration.cpp
+++ b/src/administration.cpp
@@ -45,7 +45,7 @@ time_t administration::get_default_invoice_expire_duration() // TODO depricated
 }
 
 static void administration_recalculate_billing_item_totals(billing_item* item);
-static char* get_default_currency_for_country(char* country_code);
+static const char* get_default_currency_for_country(const char* country_code);
 
 static void create_default_cost_centers()
 {
@@ -203,16 +203,16 @@ void administration::destroy()
     administration_destroy_list(&g_administration.cost_centers);
 }
 
-void administration::create_from_file(char* save_file)
+void administration::create_from_file(const char* save_file)
 {
     if (is_initialized) administration::destroy();
     administration_create();
 
     strops::copy(g_administration.path, save_file, sizeof(g_administration.path));
-    strops::copy(g_administration.program_version, config::PROGRAM_VERSION, sizeof(g_administration.program_version));
+    strops::copy(g_administration.program_version, PROGRAM_VERSION, sizeof(g_administration.program_version));
 }
 
-void administration::create_empty(char* save_file)
+void administration::create_empty(const char* save_file)
 {
     if (is_initialized) administration::destroy();
     administration_create();
@@ -221,11 +221,11 @@ void administration::create_empty(char* save_file)
     g_administration.next_sequence_number = 1;
 
     strops::copy(g_administration.path, save_file, sizeof(g_administration.path));
-    strops::copy(g_administration.program_version, config::PROGRAM_VERSION, sizeof(g_administration.program_version));
+    strops::copy(g_administration.program_version, PROGRAM_VERSION, sizeof(g_administration.program_version));
     administration::company_info_set(administration::contact_create_empty());   
 }
 
-void administration::create_default(char* save_file)
+void administration::create_default(const char* save_file)
 {
     administration::create_empty(save_file);
     if (!strops::empty(save_file)) create_default_cost_centers();
@@ -291,12 +291,12 @@ bool administration::company_info_is_valid()
     return administration::contact_is_valid(g_administration.company_info) == A_ERR_SUCCESS;
 }
 
-char* administration::get_default_currency()
+const char* administration::get_default_currency()
 {
     return g_administration.default_currency;
 }
 
-char* administration::get_currency_symbol_for_currency(char* code)
+const char* administration::get_currency_symbol_for_currency(const char* code)
 {
     // Major European currencies
     if (strops::equals(code, "EUR")) return "€";   // Euro
@@ -663,7 +663,7 @@ void administration::set_file_path(char* path)
     strops::copy(g_administration.path, path, MAX_LEN_PATH);
 }
 
-char* administration::get_file_path()
+const char* administration::get_file_path()
 {
     return strops::empty(g_administration.path) ? NULL : g_administration.path;
 }
@@ -992,7 +992,7 @@ a_err administration::project_is_valid(project data)
     return A_ERR_SUCCESS;
 }
 
-char* administration::project_get_status_string(project data)
+const char* administration::project_get_status_string(project data)
 {
     switch(data.state)
     {
@@ -1350,7 +1350,7 @@ a_err administration::cost_center_update(cost_center data)
 
 // Invoice functions.
 // =======================
-static char* get_default_currency_for_country(char* country_code)
+static const char* get_default_currency_for_country(const char* country_code)
 {
     if (country_code == NULL || strops::length(country_code) != 2)
         return "EUR"; // default
@@ -1763,7 +1763,7 @@ u32 administration::invoice_get_partial_list_incomming(u32 page_index, u32 page_
     return invoice_get_partial_list(page_index, page_size, buffer, 0);
 }
 
-char* administration::invoice_get_status_string(invoice* invoice)
+const char* administration::invoice_get_status_string(invoice* invoice)
 {
     switch(invoice->extras.status)
     {
@@ -1957,7 +1957,7 @@ a_err administration::activity_import(activity ac)
     return A_ERR_SUCCESS;
 }
 
-a_err administration::activity_add(char* user, char* ref_id, char* message)
+a_err administration::activity_add(const char* user, const char* ref_id, const char* message)
 {
     activity* new_activity = (activity*)memops::alloc(sizeof(activity));
     strops::copy(new_activity->user_name, user, MAX_LEN_SHORT_DESC);
diff --git a/src/administration_reader.cpp b/src/administration_reader.cpp
index e481c10..81f5b02 100644
--- a/src/administration_reader.cpp
+++ b/src/administration_reader.cpp
@@ -358,7 +358,7 @@ bool administration_reader::import_project(char* buffer, size_t buffer_size)
 
     a_err result = administration::project_import(data);  
     if (result == A_ERR_SUCCESS) {
-        logger::info("Loaded project in %.3fms. id=%s description=%s state=%d started=%lld end=%lld", 
+        logger::info("Loaded project in %.3fms. id=%s description=%s state=%d started=%ld end=%ld", 
             STOPWATCH_TIME, data.id, data.description, data.state, data.start_date, data.end_date);
     }
     else {
@@ -523,7 +523,6 @@ bool administration_reader::import_activities(char* buffer, size_t buffer_size)
         if (strops::equals(child_name, "Activity"))
         {
             activity ac = {0};
-            time_t timestamp;
 
             ac.timestamp = xml_get_s64(child, "Timestamp");
             xml_get_str(child, ac.user_name, MAX_LEN_SHORT_DESC, "User");
@@ -536,7 +535,7 @@ bool administration_reader::import_activities(char* buffer, size_t buffer_size)
         memops::unalloc(child_name);
     }
 
-    logger::info("Loaded %d activities in %.3fms.", child_count, STOPWATCH_TIME);
+    logger::info("Loaded %ld activities in %.3fms.", child_count, STOPWATCH_TIME);
 
     xml_document_free(document, false);
     return true;
diff --git a/src/administration_writer.cpp b/src/administration_writer.cpp
index e0a6ae7..ee0ccdb 100644
--- a/src/administration_writer.cpp
+++ b/src/administration_writer.cpp
@@ -919,7 +919,7 @@ bool administration_writer::save_administration_info_blocking()
     
     strops::replace_int32(file_content, buf_length,  "{{NEXT_ID}}", administration::get_next_id());
     strops::replace_int32(file_content, buf_length,  "{{NEXT_SEQUENCE_NUMBER}}", administration::get_next_sequence_number());
-    strops::replace(file_content, buf_length,        "{{PROGRAM_VERSION}}", config::PROGRAM_VERSION);
+    strops::replace(file_content, buf_length,        "{{PROGRAM_VERSION}}", PROGRAM_VERSION);
 
     ai_service active_ai_service = administration::get_active_ai_service();
     strops::replace_int32(file_content, buf_length,  "{{ACTIVE_AI_SERVICE_PROVIDER}}", (s32)active_ai_service.provider);
diff --git a/src/countries.cpp b/src/countries.cpp
index 5d1ea5a..5384889 100644
--- a/src/countries.cpp
+++ b/src/countries.cpp
@@ -258,7 +258,7 @@ bool country::is_enabled(const char* country_code)
     return country_map[index].enabled;
 }
 
-time_t country::get_default_invoice_expire_duration(char* country_code)
+time_t country::get_default_invoice_expire_duration(const char* country_code)
 {
     s32 index = get_index_by_country_code(country_code);
     if (index == -1) return 0;
@@ -275,7 +275,7 @@ bool country::tax_is_implemented(const char* country_code)
         country_map[index].add_billing_item_to_tax_report && country_map[index].get_available_tax_rates;
 }
 
-void country::fill_tax_report_with_categories(char* country_code, tax_report* report)
+void country::fill_tax_report_with_categories(const char* country_code, tax_report* report)
 {
     s32 index = get_index_by_country_code(country_code);
     assert(index != -1);
@@ -283,7 +283,7 @@ void country::fill_tax_report_with_categories(char* country_code, tax_report* re
     country_map[index].fill_tax_report_with_categories(report);
 }
 
-bool country::add_billing_item_to_tax_report(char* country_code, tax_report* report, invoice* inv, billing_item* item)
+bool country::add_billing_item_to_tax_report(const char* country_code, tax_report* report, invoice* inv, billing_item* item)
 {
     s32 index = get_index_by_country_code(country_code);
     assert(index != -1);
@@ -291,7 +291,7 @@ bool country::add_billing_item_to_tax_report(char* country_code, tax_report* rep
     return country_map[index].add_billing_item_to_tax_report(report, inv, item);
 }
 
-float country::calculate_tax_report_final(char* country_code, tax_report* report)
+float country::calculate_tax_report_final(const char* country_code, tax_report* report)
 {
     s32 index = get_index_by_country_code(country_code);
     assert(index != -1);
@@ -299,7 +299,7 @@ float country::calculate_tax_report_final(char* country_code, tax_report* report
     return country_map[index].calculate_tax_report_final(report);
 }
 
-time_t country::get_invoice_date_to_use_for_tax_report(char* country_code, invoice* inv)
+time_t country::get_invoice_date_to_use_for_tax_report(const char* country_code, invoice* inv)
 {
     s32 index = get_index_by_country_code(country_code);
     assert(index != -1);
diff --git a/src/exporter.cpp b/src/exporter.cpp
index 74c77c1..54d2b59 100644
--- a/src/exporter.cpp
+++ b/src/exporter.cpp
@@ -53,7 +53,7 @@ static int _send_email_t(void* arg) {
     return 0;
 }
 
-exporter::export_request* exporter::send_email(char* sender, char* recipient, const char* subject, const char* text, send_email_callback ev)
+exporter::export_request* exporter::send_email(const char* sender, const char* recipient, const char* subject, const char* text, send_email_callback ev)
 {
     exporter::export_request* result = (exporter::export_request*)memops::alloc(sizeof(exporter::export_request));
     result->started_at = time(NULL);
diff --git a/src/importer.cpp b/src/importer.cpp
index fd3e90e..c3757ce 100644
--- a/src/importer.cpp
+++ b/src/importer.cpp
@@ -24,7 +24,6 @@
 #include "memops.hpp"
 #include "locales.hpp"
 #include "importer.hpp"
-#include "file_templates.hpp"
 #include "administration_reader.hpp"
 
 extern importer::ai_provider_impl _chatgpt_api_provider;
diff --git a/src/main_windows.cpp b/src/main_windows.cpp
deleted file mode 100644
index 47c9a42..0000000
--- a/src/main_windows.cpp
+++ /dev/null
@@ -1,319 +0,0 @@
-/*
-* Copyright (c) 2025 Aldrik Ramaekers <aldrik.ramaekers@gmail.com>
-* 
-* Permission to use, copy, modify, and/or distribute this software for any
-* purpose with or without fee is hereby granted, provided that the above
-* copyright notice and this permission notice appear in all copies.
-* 
-* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-
-#ifdef win64
-
-#include "imgui/imgui.h"
-#include "imgui_impl_win32.h"
-#include "imgui_impl_dx11.h"
-#include <d3d11.h>
-#include <tchar.h>
-#include "timer_lib/timer.h"
-#include "ui.hpp"
-#include "administration.hpp"
-#include "administration_writer.hpp"
-#include "administration_reader.hpp"
-
-// Data
-static HWND                     hwnd;
-static ID3D11Device*            g_pd3dDevice = nullptr;
-static ID3D11DeviceContext*     g_pd3dDeviceContext = nullptr;
-static IDXGISwapChain*          g_pSwapChain = nullptr;
-static bool                     g_SwapChainOccluded = false;
-static UINT                     g_ResizeWidth = 0, g_ResizeHeight = 0;
-static ID3D11RenderTargetView*  g_mainRenderTargetView = nullptr;
-
-// Forward declarations of helper functions
-bool CreateDeviceD3D(HWND hWnd);
-void CleanupDeviceD3D();
-void CreateRenderTarget();
-void CleanupRenderTarget();
-LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
-
-void platorm_maximize_window()
-{
-    LONG style = GetWindowLong(hwnd, GWL_STYLE);
-
-    // allow resizing + maximize
-    style |= (WS_THICKFRAME | WS_MAXIMIZEBOX);
-
-    SetWindowLong(hwnd, GWL_STYLE, style);
-
-    // Apply style changes
-    SetWindowPos(hwnd, NULL, 0, 0, 0, 0,
-        SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);
-
-    ShowWindow(hwnd, SW_MAXIMIZE);
-}
-
-// Main code
-//int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
-int main(int argc, char** argv)
-{
-    int start_width = 1280;
-    int start_height = 800;
-
-    // Make process DPI aware and obtain main monitor scale
-    ImGui_ImplWin32_EnableDpiAwareness();
-    float main_scale = ImGui_ImplWin32_GetDpiScaleForMonitor(::MonitorFromPoint(POINT{ 0, 0 }, MONITOR_DEFAULTTOPRIMARY));
-
-    // Create application window
-    WNDCLASSEXW wc = { sizeof(wc), CS_CLASSDC, WndProc, 0L, 0L, GetModuleHandle(nullptr), nullptr, nullptr, nullptr, nullptr, L"ImGui Example", nullptr };
-    ::RegisterClassExW(&wc);
-
-    // Get screen size
-    int screenW = GetSystemMetrics(SM_CXSCREEN);
-    int screenH = GetSystemMetrics(SM_CYSCREEN);
-
-    // Calculate top-left so window is centered
-    int x = (screenW - start_width) / 2;
-    int y = (screenH - start_height) / 2;
-
-    hwnd = ::CreateWindowW(wc.lpszClassName, L"OpenBooks", WS_OVERLAPPEDWINDOW, 
-                                x, y, (int)(start_width * main_scale), (int)(start_height * main_scale), nullptr, nullptr, wc.hInstance, nullptr);
-
-    // Initialize Direct3D
-    if (!CreateDeviceD3D(hwnd))
-    {
-        CleanupDeviceD3D();
-        ::UnregisterClassW(wc.lpszClassName, wc.hInstance);
-        return 1;
-    }
-
-    // Show the window
-    ::ShowWindow(hwnd, SW_SHOWDEFAULT);
-    ::UpdateWindow(hwnd);
-
-    // Setup Dear ImGui context
-    IMGUI_CHECKVERSION();
-    ImGui::CreateContext();
-    ImGuiIO& io = ImGui::GetIO();
-    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
-    io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;      // Enable Gamepad Controls
-    io.IniFilename = NULL;
-    io.LogFilename = NULL;
-
-    // Setup Dear ImGui style
-    ImGui::StyleColorsDark();
-    //ImGui::StyleColorsLight();
-
-    // Setup scaling
-    ImGuiStyle& style = ImGui::GetStyle();
-    style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
-
-    // Setup Platform/Renderer backends
-    ImGui_ImplWin32_Init(hwnd);
-    ImGui_ImplDX11_Init(g_pd3dDevice, g_pd3dDeviceContext);
-
-    // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details.
-    // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    style.FontSizeBase = 18.0f;
-    //io.Fonts->AddFontDefault();
-    io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\seguisym.ttf");
-    ui::fontBold = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeuib.ttf");
-    ui::fontBig = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeuib.ttf", 30);
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
-    //IM_ASSERT(font != nullptr);
-
-    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
-
-    timer_lib_initialize();
-    administration_writer::create();
-
-    if (argc < 2) {
-        administration::create_default("");
-    }
-    else {
-        administration_reader::open_existing(argv[1]);
-    }
-
-    // Main loop
-    bool done = false;
-    while (!done)
-    {
-        // Poll and handle messages (inputs, window resize, etc.)
-        // See the WndProc() function below for our to dispatch events to the Win32 backend.
-        MSG msg;
-        while (::PeekMessage(&msg, nullptr, 0U, 0U, PM_REMOVE))
-        {
-            ::TranslateMessage(&msg);
-            ::DispatchMessage(&msg);
-            if (msg.message == WM_QUIT)
-                done = true;
-        }
-        if (done)
-            break;
-
-        // Handle window being minimized or screen locked
-        if (g_SwapChainOccluded && g_pSwapChain->Present(0, DXGI_PRESENT_TEST) == DXGI_STATUS_OCCLUDED)
-        {
-            ::Sleep(10);
-            continue;
-        }
-        g_SwapChainOccluded = false;
-
-        // Handle window resize (we don't resize directly in the WM_SIZE handler)
-        if (g_ResizeWidth != 0 && g_ResizeHeight != 0)
-        {
-            CleanupRenderTarget();
-            g_pSwapChain->ResizeBuffers(0, g_ResizeWidth, g_ResizeHeight, DXGI_FORMAT_UNKNOWN, 0);
-            g_ResizeWidth = g_ResizeHeight = 0;
-            CreateRenderTarget();
-        }
-
-        // Start the Dear ImGui frame
-        ImGui_ImplDX11_NewFrame();
-        ImGui_ImplWin32_NewFrame();
-        ImGui::NewFrame();
-
-        ui::draw_main();
-
-        // Rendering
-        ImGui::Render();
-        const float clear_color_with_alpha[4] = { clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w };
-        g_pd3dDeviceContext->OMSetRenderTargets(1, &g_mainRenderTargetView, nullptr);
-        g_pd3dDeviceContext->ClearRenderTargetView(g_mainRenderTargetView, clear_color_with_alpha);
-        ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
-
-        // Present
-        HRESULT hr = g_pSwapChain->Present(1, 0);   // Present with vsync
-        //HRESULT hr = g_pSwapChain->Present(0, 0); // Present without vsync
-        g_SwapChainOccluded = (hr == DXGI_STATUS_OCCLUDED);
-    }
-
-    administration_writer::destroy();
-    timer_lib_shutdown();
-    administration::destroy();
-
-    // Cleanup
-    ImGui_ImplDX11_Shutdown();
-    ImGui_ImplWin32_Shutdown();
-    ImGui::DestroyContext();
-
-    CleanupDeviceD3D();
-    ::DestroyWindow(hwnd);
-    ::UnregisterClassW(wc.lpszClassName, wc.hInstance);
-
-    return 0;
-}
-
-// Helper functions
-
-bool CreateDeviceD3D(HWND hWnd)
-{
-    // Setup swap chain
-    DXGI_SWAP_CHAIN_DESC sd;
-    ZeroMemory(&sd, sizeof(sd));
-    sd.BufferCount = 2;
-    sd.BufferDesc.Width = 0;
-    sd.BufferDesc.Height = 0;
-    sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
-    sd.BufferDesc.RefreshRate.Numerator = 60;
-    sd.BufferDesc.RefreshRate.Denominator = 1;
-    sd.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
-    sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
-    sd.OutputWindow = hWnd;
-    sd.SampleDesc.Count = 1;
-    sd.SampleDesc.Quality = 0;
-    sd.Windowed = TRUE;
-    sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
-
-    UINT createDeviceFlags = 0;
-    //createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUG;
-    D3D_FEATURE_LEVEL featureLevel;
-    const D3D_FEATURE_LEVEL featureLevelArray[2] = { D3D_FEATURE_LEVEL_11_0, D3D_FEATURE_LEVEL_10_0, };
-    HRESULT res = D3D11CreateDeviceAndSwapChain(nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, createDeviceFlags, featureLevelArray, 2, D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice, &featureLevel, &g_pd3dDeviceContext);
-    if (res == DXGI_ERROR_UNSUPPORTED) // Try high-performance WARP software driver if hardware is not available.
-        res = D3D11CreateDeviceAndSwapChain(nullptr, D3D_DRIVER_TYPE_WARP, nullptr, createDeviceFlags, featureLevelArray, 2, D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice, &featureLevel, &g_pd3dDeviceContext);
-    if (res != S_OK)
-        return false;
-
-    CreateRenderTarget();
-    return true;
-}
-
-void CleanupDeviceD3D()
-{
-    CleanupRenderTarget();
-    if (g_pSwapChain) { g_pSwapChain->Release(); g_pSwapChain = nullptr; }
-    if (g_pd3dDeviceContext) { g_pd3dDeviceContext->Release(); g_pd3dDeviceContext = nullptr; }
-    if (g_pd3dDevice) { g_pd3dDevice->Release(); g_pd3dDevice = nullptr; }
-}
-
-void CreateRenderTarget()
-{
-    ID3D11Texture2D* pBackBuffer;
-    g_pSwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
-    g_pd3dDevice->CreateRenderTargetView(pBackBuffer, nullptr, &g_mainRenderTargetView);
-    pBackBuffer->Release();
-}
-
-void CleanupRenderTarget()
-{
-    if (g_mainRenderTargetView) { g_mainRenderTargetView->Release(); g_mainRenderTargetView = nullptr; }
-}
-
-// Forward declare message handler from imgui_impl_win32.cpp
-extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
-
-// Win32 message handler
-// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
-// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
-// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
-// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
-LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
-{
-    if (ImGui_ImplWin32_WndProcHandler(hWnd, msg, wParam, lParam))
-        return true;
-
-    switch (msg)
-    {
-    case WM_GETMINMAXINFO:
-    {
-        MINMAXINFO* minMaxInfo = (MINMAXINFO*)lParam;
-        minMaxInfo->ptMinTrackSize.x = 1400; // Minimum width
-        minMaxInfo->ptMinTrackSize.y = 900; // Minimum height
-        return 0;
-    }
-
-    case WM_SIZE:
-        if (wParam == SIZE_MINIMIZED)
-            return 0;
-        g_ResizeWidth = (UINT)LOWORD(lParam); // Queue resize
-        g_ResizeHeight = (UINT)HIWORD(lParam);
-        return 0;
-    case WM_SYSCOMMAND:
-        if ((wParam & 0xfff0) == SC_KEYMENU) // Disable ALT application menu
-            return 0;
-        break;
-    case WM_DESTROY:
-        ::PostQuitMessage(0);
-        return 0;
-    }
-    return ::DefWindowProcW(hWnd, msg, wParam, lParam);
-}
-
-#endif
\ No newline at end of file
diff --git a/src/providers/DeepSeek.cpp b/src/providers/DeepSeek.cpp
index 2fc73c9..7c695fb 100644
--- a/src/providers/DeepSeek.cpp
+++ b/src/providers/DeepSeek.cpp
@@ -25,7 +25,7 @@
 #define QUERY_BUFFER_SIZE 1000000
 
 char* query_buffer = 0;
-static bool _DeepSeek_query_with_file(const char* query, size_t query_length, char* file_id, char** response)
+static bool _DeepSeek_query_with_file(const char* query, size_t query_length, const char* file_id, char** response)
 {
     (void)file_id;
     (void)query_length;
@@ -74,7 +74,7 @@ static bool _DeepSeek_query_with_file(const char* query, size_t query_length, ch
     return 1;
 }
 
-static bool _DeepSeek_upload_file(char* file_path, char* file_id, size_t file_id_len)
+static bool _DeepSeek_upload_file(const char* file_path, char* file_id, size_t file_id_len)
 {
     (void)file_id;
     (void)file_id_len;
diff --git a/src/providers/MailerSend.cpp b/src/providers/MailerSend.cpp
index ab07907..1758ac8 100644
--- a/src/providers/MailerSend.cpp
+++ b/src/providers/MailerSend.cpp
@@ -22,7 +22,7 @@
 #include "logger.hpp"
 #include "exporter.hpp"
 
-bool _MailerSend_send_email(char* sender, char* recipient, const char* subject, const char* text)
+bool _MailerSend_send_email(const char* sender, const char* recipient, const char* subject, const char* text)
 {
     #if SIMULATE_EMAIL
     usleep(1000 * 1000);
diff --git a/src/providers/openAI.cpp b/src/providers/openAI.cpp
index 62a2ae8..c743711 100644
--- a/src/providers/openAI.cpp
+++ b/src/providers/openAI.cpp
@@ -24,7 +24,7 @@
 #include "logger.hpp"
 #include "importer.hpp"
 
-static bool _openAI_batch_query_with_file(const char** queries, size_t query_count, char* file_id, invoice* buffer, importer::batch_query_response_handler response_handler)
+static bool _openAI_batch_query_with_file(const char** queries, size_t query_count, const char* file_id, invoice* buffer, importer::batch_query_response_handler response_handler)
 {
     const char *api_key = administration::get_active_ai_service().api_key_public;
     httplib::SSLClient cli("api.openai.com", 443);
@@ -94,7 +94,7 @@ static bool _openAI_batch_query_with_file(const char** queries, size_t query_cou
     return 1;
 }
 
-static bool _openAI_query_with_file(const char* query, size_t query_length, char* file_id, char** response)
+static bool _openAI_query_with_file(const char* query, size_t query_length, const char* file_id, char** response)
 {
     const char *api_key = administration::get_active_ai_service().api_key_public;
     
@@ -133,7 +133,7 @@ static bool _openAI_query_with_file(const char* query, size_t query_length, char
     return 1;
 }
 
-static bool _openAI_upload_file(char* file_path, char* file_id, size_t file_id_len)
+static bool _openAI_upload_file(const char* file_path, char* file_id, size_t file_id_len)
 {
     const char *api_key = administration::get_active_ai_service().api_key_public;
     const char *filename = strops::get_filename(file_path);
diff --git a/src/ui/imgui_extensions.cpp b/src/ui/imgui_extensions.cpp
index b3fc748..568806a 100644
--- a/src/ui/imgui_extensions.cpp
+++ b/src/ui/imgui_extensions.cpp
@@ -702,7 +702,7 @@ namespace ImGui
         return result;
     }
 
-    void ToggleDropdown(bool *buffer, char* option1, char* option2)
+    void ToggleDropdown(bool *buffer, const char* option1, const char* option2)
     {
         const char* items[] = { option1, option2 };
 
diff --git a/src/ui/ui_earnings.cpp b/src/ui/ui_earnings.cpp
index b93bd75..6bd3b98 100644
--- a/src/ui/ui_earnings.cpp
+++ b/src/ui/ui_earnings.cpp
@@ -62,7 +62,7 @@ void ui::draw_earnings()
 
     ImGui::Spacing();
 
-    char* currency_symbol = administration::get_currency_symbol_for_currency(administration::get_default_currency());
+    const char* currency_symbol = administration::get_currency_symbol_for_currency(administration::get_default_currency());
 
     if (ImGui::BeginTable("QuarterlyResultsTable", 5, ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_Hideable))
     {
@@ -104,10 +104,10 @@ void ui::draw_earnings()
         if (has_uncategorized_revenue || has_uncategorized_taxes || has_uncategorized_expenses) {
             ImGui::TableNextRow();
             ImGui::TableSetColumnIndex(0); ImGui::Text("(%s)", locale::get("statement.uncategorized"));
-            ImGui::TableSetColumnIndex(1); ImGui::Text("");
-            ImGui::TableSetColumnIndex(2); ImGui::Text("");
-            ImGui::TableSetColumnIndex(3); ImGui::Text("");
-            ImGui::TableSetColumnIndex(4); ImGui::Text("");
+            ImGui::TableSetColumnIndex(1); ImGui::TextUnformatted("");
+            ImGui::TableSetColumnIndex(2); ImGui::TextUnformatted("");
+            ImGui::TableSetColumnIndex(3); ImGui::TextUnformatted("");
+            ImGui::TableSetColumnIndex(4); ImGui::TextUnformatted("");
         }
         
         if (has_uncategorized_revenue) {
@@ -148,10 +148,10 @@ void ui::draw_earnings()
                                          ImGuiTreeNodeFlags_SpanFullWidth |
                                          ImGuiTreeNodeFlags_DefaultOpen);
 
-            ImGui::TableSetColumnIndex(1); ImGui::Text("");
-            ImGui::TableSetColumnIndex(2); ImGui::Text("");
-            ImGui::TableSetColumnIndex(3); ImGui::Text("");
-            ImGui::TableSetColumnIndex(4); ImGui::Text("");
+            ImGui::TableSetColumnIndex(1); ImGui::TextUnformatted("");
+            ImGui::TableSetColumnIndex(2); ImGui::TextUnformatted("");
+            ImGui::TableSetColumnIndex(3); ImGui::TextUnformatted("");
+            ImGui::TableSetColumnIndex(4); ImGui::TextUnformatted("");
 
             if (!toggled) continue;
 
diff --git a/src/ui/ui_expenses.cpp b/src/ui/ui_expenses.cpp
index 1e74508..7c9f596 100644
--- a/src/ui/ui_expenses.cpp
+++ b/src/ui/ui_expenses.cpp
@@ -33,7 +33,6 @@ static importer::invoice_request* active_import_request = 0;
 
 static ui::view_state current_view_state = ui::view_state::LIST_ALL;
 static invoice active_invoice = {0};
-static invoice selected_for_removal = {0};
 static const float sidepanel_width = 200.0f;
 static billing_item* invoice_items_buffer = 0;
 
diff --git a/src/ui/ui_invoices.cpp b/src/ui/ui_invoices.cpp
index 06f1456..49ee697 100644
--- a/src/ui/ui_invoices.cpp
+++ b/src/ui/ui_invoices.cpp
@@ -33,7 +33,6 @@ static u32 activity_count;
 
 static ui::view_state current_view_state = ui::view_state::LIST_ALL;
 static invoice active_invoice = {0};
-static invoice selected_for_removal = {0};
 static const float sidepanel_width = 200.0f;
 static billing_item* invoice_items_buffer = 0;
 
diff --git a/src/ui/ui_main.cpp b/src/ui/ui_main.cpp
index 0fff65d..5d74fa6 100644
--- a/src/ui/ui_main.cpp
+++ b/src/ui/ui_main.cpp
@@ -177,7 +177,7 @@ void ui::draw_main()
                 ImGuiWindowFlags_NoBringToFrontOnFocus |
                 ImGuiWindowFlags_NoCollapse);
     
-    char* path = administration::get_file_path();
+    const char* path = administration::get_file_path();
     if (path == NULL) {
         ImGui::Text("%s: %s", locale::get("ui.workingOn"), locale::get("ui.unsavedProject"));
     }
diff --git a/src/ui/ui_settings.cpp b/src/ui/ui_settings.cpp
index c10ca26..854d065 100644
--- a/src/ui/ui_settings.cpp
+++ b/src/ui/ui_settings.cpp
@@ -264,7 +264,7 @@ static void draw_ai_service_ui()
 
     if (ImGui::CollapsingHeader(locale::get("settings.services.ai_service")))
     {
-        char* ai_service_names[AI_PROVIDER_END];
+        const char* ai_service_names[AI_PROVIDER_END];
         for (u32 i = 0; i < AI_PROVIDER_END; i++) {
             ai_service_names[i] = importer::get_ai_provider_implementation((ai_provider)i).provider_name;
         }
@@ -355,7 +355,7 @@ static void draw_email_service_ui()
 {
     if (ImGui::CollapsingHeader(locale::get("settings.services.email_service")))
     {
-        char* email_service_names[EMAIL_PROVIDER_END];
+        const char* email_service_names[EMAIL_PROVIDER_END];
         for (u32 i = 0; i < EMAIL_PROVIDER_END; i++) {
             email_service_names[i] = exporter::get_email_provider_implementation((email_provider)i).provider_name;
         }
diff --git a/src/ui/ui_setup.cpp b/src/ui/ui_setup.cpp
index 069c336..6140d5a 100644
--- a/src/ui/ui_setup.cpp
+++ b/src/ui/ui_setup.cpp
@@ -84,7 +84,7 @@ void ui::draw_setup()
     }
 
     if (ImGui::Button(ICON_FA_FOLDER_PLUS "  Create administration", ImVec2(area.x, 0))) { // @locale
-        if (administration_reader::open_existing(NULL)) {
+        if (administration_reader::open_new()) {
             ui::set_state(ui::main_state::UI_SETTINGS);
             ui::recreate_window_for_main_views();
         }
@@ -93,7 +93,7 @@ void ui::draw_setup()
     ImGui::PopStyleVar();
 
     char version_txt[100];
-    strops::format(version_txt, sizeof(version_txt), "VERSION: %s %s", config::PROGRAM_VERSION, _DATE_);
+    strops::format(version_txt, sizeof(version_txt), "VERSION: %s %s", PROGRAM_VERSION, _DATE_);
 
     textSize = ImGui::CalcTextSize(version_txt);
     ImGui::SetCursorPos(ImVec2(5, area.y));
diff --git a/src/ui/ui_tax.cpp b/src/ui/ui_tax.cpp
index f4176a6..5280e2a 100644
--- a/src/ui/ui_tax.cpp
+++ b/src/ui/ui_tax.cpp
@@ -63,7 +63,7 @@ void ui::draw_tax_report()
 
     ImGui::Spacing();
 
-    char* currency_symbol = administration::get_currency_symbol_for_currency(administration::get_default_currency());
+    const char* currency_symbol = administration::get_currency_symbol_for_currency(administration::get_default_currency());
     tax_report report = statement->reports[current_page];
 
     if (ImGui::BeginTable("QuarterlyTaxTable", 4, ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_Hideable))
@@ -110,7 +110,7 @@ void ui::draw_tax_report()
             #else
             ImGui::TableSetColumnIndex(2);
             if (line.show_net) ImGui::Text("%.2f %s", line.total_net, currency_symbol);
-            else ImGui::Text("");
+            else ImGui::TextUnformatted("");
 
             ImGui::TableSetColumnIndex(3);
             if (line.show_tax) {      
@@ -126,7 +126,7 @@ void ui::draw_tax_report()
                     }
                 }
             }
-            else ImGui::Text("");
+            else ImGui::TextUnformatted("");
             #endif
 
             if (bold) ImGui::PopFont();
diff --git a/tests/administration_rw_tests.cpp b/tests/administration_rw_tests.cpp
index bbf7de5..2a009e4 100644
--- a/tests/administration_rw_tests.cpp
+++ b/tests/administration_rw_tests.cpp
@@ -144,7 +144,7 @@ TEST _administration_rw_info(void)
         next_id = administration::get_next_id();
         next_sequence_number = administration::get_next_sequence_number();
 
-        ai_service ss = {0};
+        ai_service ss;
         ss.provider = AI_PROVIDER_OPENAI;
         strops::copy(ss.api_key_public, "123", sizeof(ss.api_key_public));
         strops::copy(ss.model_name, "321", sizeof(ss.model_name));
diff --git a/tests/test_helper.cpp b/tests/test_helper.cpp
index d9d2335..ada084b 100644
--- a/tests/test_helper.cpp
+++ b/tests/test_helper.cpp
@@ -10,10 +10,10 @@
 #include "administration_reader.hpp"
 #include "administration_writer.hpp"
 
-char* test_file_path = "build\\test.openbook";
-char* validation_file = "libs\\PEPPOL-EN16931-UBL.sch";
-char* result_file = "build\\invoice_report.xml";
-char* extract_dir = "build\\extracted";
+char* test_file_path = "build/test.openbook";
+char* validation_file = "libs/PEPPOL-EN16931-UBL.sch";
+char* result_file = "build/invoice_report.xml";
+char* extract_dir = "build/extracted";
 
 static contact _create_nl_business()
 {
@@ -177,7 +177,7 @@ static bool _test_peppol_file(char* id)
     zip_extract(test_file_path, extract_dir, 0, 0);
 
     char command[200];
-    strops::format(command, 200, "java -jar libs\\schxslt-cli.jar -d %s\\%s.xml -s %s -o %s > NUL 2>&1", 
+    strops::format(command, 200, "java -jar libs/schxslt-cli.jar -d %s/%s.xml -s %s -o %s > /dev/null 2>&1", 
         extract_dir, id, validation_file, result_file);
     system(command);