// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.

#include <cstdio>

#include "common/common.h" // Local
#include "common/string_util.h"

bool DefaultMsgHandler(const char* caption, const char* text, bool yes_no, int Style);
static MsgAlertHandler msg_handler = DefaultMsgHandler;
static bool AlertEnabled = true;

std::string DefaultStringTranslator(const char* text);
static StringTranslator str_translator = DefaultStringTranslator;

// Select which of these functions that are used for message boxes. If
// wxWidgets is enabled we will use wxMsgAlert() that is defined in Main.cpp
void RegisterMsgAlertHandler(MsgAlertHandler handler)
{
    msg_handler = handler;
}

// Select translation function.  For wxWidgets use wxStringTranslator in Main.cpp
void RegisterStringTranslator(StringTranslator translator)
{
    str_translator = translator;
}

// enable/disable the alert handler
void SetEnableAlert(bool enable)
{
    AlertEnabled = enable;
}

// This is the first stop for gui alerts where the log is updated and the
// correct window is shown
bool MsgAlert(bool yes_no, int Style, const char* format, ...)
{
    // Read message and write it to the log
    std::string caption;
    char buffer[2048];

    static std::string info_caption;
    static std::string warn_caption;
    static std::string ques_caption;
    static std::string crit_caption;

    if (!info_caption.length())
    {
        info_caption = str_translator(_trans("Information"));
        ques_caption = str_translator(_trans("Question"));
        warn_caption = str_translator(_trans("Warning"));
        crit_caption = str_translator(_trans("Critical"));
    }

    switch(Style)
    {
        case INFORMATION:
            caption = info_caption;
            break;
        case QUESTION:
            caption = ques_caption;
            break;
        case WARNING:
            caption = warn_caption;
            break;
        case CRITICAL:
            caption = crit_caption;
            break;
    }

    va_list args;
    va_start(args, format);
    Common::CharArrayFromFormatV(buffer, sizeof(buffer)-1, str_translator(format).c_str(), args);
    va_end(args);

    LOG_INFO(Common, "%s: %s", caption.c_str(), buffer);

    // Don't ignore questions, especially AskYesNo, PanicYesNo could be ignored
    if (msg_handler && (AlertEnabled || Style == QUESTION || Style == CRITICAL))
        return msg_handler(caption.c_str(), buffer, yes_no, Style);

    return true;
}

// Default non library dependent panic alert
bool DefaultMsgHandler(const char* caption, const char* text, bool yes_no, int Style)
{
//#ifdef _WIN32
//    int STYLE = MB_ICONINFORMATION;
//    if (Style == QUESTION) STYLE = MB_ICONQUESTION;
//    if (Style == WARNING) STYLE = MB_ICONWARNING;
//
//    return IDYES == MessageBox(0, UTF8ToTStr(text).c_str(), UTF8ToTStr(caption).c_str(), STYLE | (yes_no ? MB_YESNO : MB_OK));
//#else
    printf("%s\n", text);
    return true;
//#endif
}

// Default (non) translator
std::string DefaultStringTranslator(const char* text)
{
    return text;
}