#include "common/printing.h"
#include "common/jsonconfig.h"
#include "common/strutil.h"
#include "detection/terminaltheme/terminaltheme.h"
#include "modules/terminaltheme/terminaltheme.h"

#include <inttypes.h>

#define FF_TERMINALTHEME_DISPLAY_NAME "Terminal Theme"

bool ffPrintTerminalTheme(FFTerminalThemeOptions* options) {
    FFTerminalThemeResult result = {};

    if (!ffDetectTerminalTheme(&result, false)) {
        ffPrintError(FF_TERMINALTHEME_DISPLAY_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, "Failed to detect terminal theme");
        return false;
    }

    if (options->moduleArgs.outputFormat.length == 0) {
        ffPrintLogoAndKey(FF_TERMINALTHEME_DISPLAY_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT);
        printf("#%02" PRIX16 "%02" PRIX16 "%02" PRIX16 " (FG) - #%02" PRIX16 "%02" PRIX16 "%02" PRIX16 " (BG) [%s]\n",
            result.fg.r,
            result.fg.g,
            result.fg.b,
            result.bg.r,
            result.bg.g,
            result.bg.b,
            result.bg.dark ? "Dark" : "Light");
    } else {
        char fg[32], bg[32];
        const char* fgType = result.fg.dark ? "Dark" : "Light";
        const char* bgType = result.bg.dark ? "Dark" : "Light";
        snprintf(fg, ARRAY_SIZE(fg), "#%02" PRIX16 "%02" PRIX16 "%02" PRIX16, result.fg.r, result.fg.g, result.fg.b);
        snprintf(bg, ARRAY_SIZE(bg), "#%02" PRIX16 "%02" PRIX16 "%02" PRIX16, result.bg.r, result.bg.g, result.bg.b);
        FF_PRINT_FORMAT_CHECKED(FF_TERMINALTHEME_DISPLAY_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, ((FFformatarg[]) {
                                                                                                                   FF_ARG(fg, "fg-color"),
                                                                                                                   FF_ARG(fgType, "fg-type"),
                                                                                                                   FF_ARG(bg, "bg-color"),
                                                                                                                   FF_ARG(bgType, "bg-type"),
                                                                                                               }));
    }

    return true;
}

void ffParseTerminalThemeJsonObject(FFTerminalThemeOptions* options, yyjson_val* module) {
    yyjson_val *key, *val;
    size_t idx, max;
    yyjson_obj_foreach (module, idx, max, key, val) {
        if (ffJsonConfigParseModuleArgs(key, val, &options->moduleArgs)) {
            continue;
        }

        ffPrintError(FF_TERMINALTHEME_DISPLAY_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, "Unknown JSON key %s", unsafe_yyjson_get_str(key));
    }
}

void ffGenerateTerminalThemeJsonConfig(FFTerminalThemeOptions* options, yyjson_mut_doc* doc, yyjson_mut_val* module) {
    ffJsonConfigGenerateModuleArgsConfig(doc, module, &options->moduleArgs);
}

bool ffGenerateTerminalThemeJsonResult(FF_A_UNUSED FFTerminalThemeOptions* options, yyjson_mut_doc* doc, yyjson_mut_val* module) {
    FFTerminalThemeResult result = {};

    if (!ffDetectTerminalTheme(&result, false)) {
        yyjson_mut_obj_add_str(doc, module, "error", "Failed to detect terminal theme");
        return false;
    }

    yyjson_mut_val* obj = yyjson_mut_obj_add_obj(doc, module, "result");

    yyjson_mut_val* fg = yyjson_mut_obj_add_obj(doc, obj, "fg");
    yyjson_mut_obj_add_uint(doc, fg, "r", result.fg.r);
    yyjson_mut_obj_add_uint(doc, fg, "g", result.fg.g);
    yyjson_mut_obj_add_uint(doc, fg, "b", result.fg.b);
    yyjson_mut_obj_add_bool(doc, fg, "dark", result.fg.dark);

    yyjson_mut_val* bg = yyjson_mut_obj_add_obj(doc, obj, "bg");
    yyjson_mut_obj_add_uint(doc, bg, "r", result.bg.r);
    yyjson_mut_obj_add_uint(doc, bg, "g", result.bg.g);
    yyjson_mut_obj_add_uint(doc, bg, "b", result.bg.b);
    yyjson_mut_obj_add_bool(doc, bg, "dark", result.bg.dark);

    return true;
}

void ffInitTerminalThemeOptions(FFTerminalThemeOptions* options) {
    ffOptionInitModuleArg(&options->moduleArgs, "󰔎");
}

void ffDestroyTerminalThemeOptions(FFTerminalThemeOptions* options) {
    ffOptionDestroyModuleArg(&options->moduleArgs);
}

FFModuleBaseInfo ffTerminalThemeModuleInfo = {
    .name = FF_TERMINALTHEME_MODULE_NAME,
    .description = "Print the current terminal theme (foreground and background colors)",
    .initOptions = (void*) ffInitTerminalThemeOptions,
    .destroyOptions = (void*) ffDestroyTerminalThemeOptions,
    .parseJsonObject = (void*) ffParseTerminalThemeJsonObject,
    .printModule = (void*) ffPrintTerminalTheme,
    .generateJsonResult = (void*) ffGenerateTerminalThemeJsonResult,
    .generateJsonConfig = (void*) ffGenerateTerminalThemeJsonConfig,
    .formatArgs = FF_FORMAT_ARG_LIST(((FFModuleFormatArg[]) {
        { "Terminal foreground color", "fg-color" },
        { "Terminal foreground type (Dark / Light)", "fg-type" },
        { "Terminal background color", "bg-color" },
        { "Terminal background type (Dark / Light)", "bg-type" },
    }))
};
