/*
* 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.
*/

#include <stdio.h>
#include <stdarg.h>
#include <time.h>
#include "timer.h"
#include "logger.hpp"

namespace logger {

    static logger::program_log g_log = {0};

    static void log_message(const char* fmt, ImVec4 color, va_list args)
    {
        vsnprintf(g_log.history[g_log.write_cursor], logger::MAX_LEN_LOG_TXT, fmt, args);
        g_log.colors[g_log.write_cursor] = color;

        tick_t ms_since_epoch = timer_system();
        char time_buf[50];
        time_t seconds = (time_t)(ms_since_epoch / 1000);
        int milliseconds = (int)(ms_since_epoch % 1000);

        // Convert to local time
        struct tm tm_time;
        #if defined(_WIN32)
            localtime_s(&tm_time, &seconds);
        #else
            localtime_r(&seconds, &tm_time);
        #endif

        snprintf(time_buf, 50, "%02d:%02d %02d.%03d",
                tm_time.tm_hour,
                tm_time.tm_min,
                tm_time.tm_sec,
                milliseconds);

        char tmp[logger::MAX_LEN_LOG_TXT];
        snprintf(tmp, logger::MAX_LEN_LOG_TXT, "[%s] %s", time_buf, g_log.history[g_log.write_cursor]);
        tmp[logger::MAX_LEN_LOG_TXT-1] = 0;
        memcpy(g_log.history[g_log.write_cursor], tmp, logger::MAX_LEN_LOG_TXT);

        g_log.write_cursor++;
        if (g_log.write_cursor >= logger::MAX_LEN_LOG_HISTORY) g_log.write_cursor = 0;

        g_log.history_length++;
        if (g_log.history_length > logger::MAX_LEN_LOG_HISTORY) g_log.history_length = logger::MAX_LEN_LOG_HISTORY;
    }

    logger::program_log* get()
    {
        return &g_log;
    }

    void clear()
    {
        g_log.write_cursor = 0;
        g_log.history_length = 0;
    }

    void aerr(a_err errors)
    {
        if (errors & A_ERR_GENERIC)               logger::error("   ERROR: Generic error");
        if (errors & A_ERR_NOT_FOUND)             logger::error("   ERROR: Not found");
        if (errors & A_ERR_MISSING_DESCRIPTION)   logger::error("   ERROR: Missing description");
        if (errors & A_ERR_CODE_EXISTS)           logger::error("   ERROR: Code already exists");
        if (errors & A_ERR_MISSING_BILLING_ITEMS) logger::error("   ERROR: Missing billing items");
        if (errors & A_ERR_INVALID_ADDRESSEE)     logger::error("   ERROR: Invalid addressee");
        if (errors & A_ERR_INVALID_CUSTOMER)      logger::error("   ERROR: Invalid customer");
        if (errors & A_ERR_INVALID_SUPPLIER)      logger::error("   ERROR: Invalid supplier");
        if (errors & A_ERR_MISSING_NAME)          logger::error("   ERROR: Missing name");
        if (errors & A_ERR_MISSING_CITY)          logger::error("   ERROR: Missing city");
        if (errors & A_ERR_MISSING_POSTAL)        logger::error("   ERROR: Missing postal code");
        if (errors & A_ERR_MISSING_ADDRESS1)      logger::error("   ERROR: Missing address line 1");
        if (errors & A_ERR_MISSING_COUNTRYCODE)   logger::error("   ERROR: Missing country code");
        if (errors & A_ERR_MISSING_TAXID)         logger::error("   ERROR: Missing tax ID");
        if (errors & A_ERR_MISSING_BUSINESSID)    logger::error("   ERROR: Missing business ID");
        if (errors & A_ERR_MAX_ITEMS_REACHED)     logger::error("   ERROR: Maximum items reached");
        if (errors & A_ERR_MISSING_CODE)          logger::error("   ERROR: Missing code");
        if (errors & A_ERR_MISSING_EMAIL)         logger::error("   ERROR: Missing email");
        if (errors & A_ERR_MISSING_TAX_RATE)      logger::error("   ERROR: Missing tax rate");
        if (errors & A_ERR_INVALID_BILLING_ITEM)  logger::error("   ERROR: Invalid billing item");
    }

    void error(const char* fmt, ...)
    {
        va_list args;
        va_start(args, fmt);
        log_message(fmt, ImVec4(1,0,0,1), args);
        va_end(args);
    }

    void info(const char* fmt, ...)
    {
        va_list args;
        va_start(args, fmt);
        log_message(fmt, ImVec4(1,1,1,1), args);
        va_end(args);
    }

}