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-rw-r--r--project-base/src/settings_config.c252
1 files changed, 252 insertions, 0 deletions
diff --git a/project-base/src/settings_config.c b/project-base/src/settings_config.c
new file mode 100644
index 0000000..4406f85
--- /dev/null
+++ b/project-base/src/settings_config.c
@@ -0,0 +1,252 @@
+/*
+* BSD 2-Clause “Simplified” License
+* Copyright (c) 2019, Aldrik Ramaekers, aldrik.ramaekers@protonmail.com
+* All rights reserved.
+*/
+
+static settings_config _settings_file = {0};
+
+void settings_write_to_file()
+{
+ // @hardcoded
+ s32 len = kilobytes(20);
+ char *buffer = mem_alloc(len);
+ buffer[0] = 0;
+
+ for (s32 i = 0; i < _settings_file.settings.length; i++)
+ {
+ config_setting *setting = array_at(&_settings_file.settings, i);
+
+ char entry_buf[MAX_INPUT_LENGTH];
+ snprintf(entry_buf, MAX_INPUT_LENGTH, "%s = \"%s\"\n", setting->name, setting->value);
+ string_appendn(buffer, entry_buf, len);
+ }
+
+ platform_set_active_directory(binary_path);
+ platform_write_file_content(_settings_file.path, "w+", buffer, strlen(buffer));
+ mem_free(buffer);
+}
+
+static void get_config_from_string(settings_config *config, char *string)
+{
+ config_setting current_entry;
+ current_entry.name = 0;
+ current_entry.value = 0;
+
+ s32 len = 0;
+ bool in_literal = false;
+
+ while(*string)
+ {
+
+ // property name
+ if (*string == ' ' && !current_entry.name)
+ {
+ current_entry.name = mem_alloc(len+1);
+ string_copyn(current_entry.name, string-len, len);
+ current_entry.name[len] = 0;
+ string_trim(current_entry.name);
+ }
+
+ // property value
+ if (*string == '"' && (*(string+1) == 0 || !in_literal))
+ {
+ in_literal = !in_literal;
+
+ if (in_literal)
+ {
+ len = -1;
+ }
+ else
+ {
+ current_entry.value = mem_alloc(len+1);
+ string_copyn(current_entry.value, string-len, len);
+ current_entry.value[len] = 0;
+ string_trim(current_entry.value);
+ }
+ }
+
+ ++len;
+ ++string;
+ }
+
+ array_push(&config->settings, (uint8_t *)&current_entry);
+}
+
+void _settings_init(char *directory)
+{
+ settings_config config;
+ config.loaded = true;
+
+ platform_create_config_directory(directory);
+
+ config.path = mem_alloc(MAX_INPUT_LENGTH);
+ platform_get_config_save_location(config.path, directory);
+
+ config.settings = array_create(sizeof(config_setting));
+
+ platform_set_active_directory(binary_path);
+
+ file_content content = platform_read_file_content(config.path, "rb");
+
+ if (!content.content || content.file_error)
+ {
+ _settings_file = config;
+ platform_destroy_file_content(&content);
+ return;
+ }
+
+ string_convert_crlf_to_lf((char*)content.content);
+
+ s32 token_offset = 0;
+ for (s32 i = 0; i < content.content_length; i++)
+ {
+ char ch = ((char*)content.content)[i];
+ char prev_ch = i-1 > 0 ? ((char*)content.content)[i-1] : 255;
+
+ // end of line [lf]
+ if (ch == 0x0A && prev_ch != 0x0D)
+ {
+ char line[MAX_INPUT_LENGTH];
+
+ s32 line_len = i - token_offset;
+ snprintf(line, MAX_INPUT_LENGTH, "%.*s", line_len, (char*)content.content+token_offset);
+ token_offset = i + 1;
+
+ get_config_from_string(&config, line);
+ }
+ }
+
+ platform_destroy_file_content(&content);
+ _settings_file = config;
+}
+
+config_setting* settings_get_setting(char *name)
+{
+ log_assert(_settings_file.loaded, "settings_init() should be called before calling any other settings functions");
+
+ for (s32 i = 0; i < _settings_file.settings.length; i++)
+ {
+ config_setting *setting = array_at(&_settings_file.settings, i);
+ if (setting && setting->name && name && strcmp(setting->name, name) == 0)
+ {
+ return setting;
+ }
+ }
+ return 0;
+}
+
+char* settings_get_string(char *name)
+{
+ log_assert(_settings_file.loaded, "settings_init() should be called before calling any other settings functions");
+
+ config_setting* setting = settings_get_setting(name);
+ if (setting)
+ return setting->value;
+ else
+ return 0;
+}
+
+s64 settings_get_number(char *name)
+{
+ log_assert(_settings_file.loaded, "settings_init() should be called before calling any other settings functions");
+
+ config_setting* setting = settings_get_setting(name);
+ if (setting && setting->value)
+ return string_to_u64(setting->value);
+ else
+ return 0;
+}
+
+s64 settings_get_number_or_default(char *name, s64 def)
+{
+ log_assert(_settings_file.loaded, "settings_init() should be called before calling any other settings functions");
+
+ config_setting* setting = settings_get_setting(name);
+ if (setting && setting->value)
+ return string_to_u64(setting->value);
+ else
+ return def;
+}
+
+void settings_set_string(char *name, char *value)
+{
+ log_assert(_settings_file.loaded, "settings_init() should be called before calling any other settings functions");
+
+ config_setting* setting = settings_get_setting(name);
+ if (setting)
+ {
+ s32 len = strlen(value);
+ mem_free(setting->value);
+ setting->value = mem_alloc(len+1);
+ string_copyn(setting->value, value, len+1);
+ }
+ else
+ {
+ config_setting new_entry;
+ new_entry.name = 0;
+
+ // name
+ s32 len = strlen(name);
+ new_entry.name = mem_alloc(len+1);
+ string_copyn(new_entry.name, name, len+1);
+
+ // value
+ len = strlen(value);
+ new_entry.value = mem_alloc(len+1);
+ string_copyn(new_entry.value, value, len+1);
+
+ array_push(&_settings_file.settings, (uint8_t *)&new_entry);
+ }
+}
+
+void settings_set_number(char *name, s64 value)
+{
+ log_assert(_settings_file.loaded, "settings_init() should be called before calling any other settings functions");
+
+ config_setting* setting = settings_get_setting(name);
+ if (setting)
+ {
+ char num_buf[20];
+ snprintf(num_buf, 20, "%"PRId64"", value);
+
+ s32 len = strlen(num_buf);
+ mem_free(setting->value);
+ setting->value = mem_alloc(len+1);
+ string_copyn(setting->value, num_buf, len+1);
+ }
+ else
+ {
+ config_setting new_entry;
+
+ // name
+ s32 len = strlen(name);
+ new_entry.name = mem_alloc(len+1);
+ string_copyn(new_entry.name, name, len+1);
+
+ // value
+ char num_buf[20];
+ snprintf(num_buf, 20, "%"PRId64"", value);
+
+ len = strlen(num_buf);
+ new_entry.value = mem_alloc(len+1);
+ string_copyn(new_entry.value, num_buf, len+1);
+ array_push(&_settings_file.settings, (uint8_t *)&new_entry);
+ }
+}
+
+void _settings_destroy()
+{
+ log_assert(_settings_file.loaded, "settings_init() should be called before calling any other settings functions");
+
+ for (s32 i = 0; i < _settings_file.settings.length; i++)
+ {
+ config_setting *entry = array_at(&_settings_file.settings, i);
+
+ mem_free(entry->name);
+ mem_free(entry->value);
+ }
+
+ array_destroy(&_settings_file.settings);
+ mem_free(_settings_file.path);
+} \ No newline at end of file
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