#include "common/printing.h"
#include "common/jsonconfig.h"
#include "common/stringUtils.h"
#include "detection/opengl/opengl.h"
#include "modules/opengl/opengl.h"

bool ffPrintOpenGL(FFOpenGLOptions* options) {
    bool success = false;
    FFOpenGLResult result;
    ffStrbufInit(&result.version);
    ffStrbufInit(&result.renderer);
    ffStrbufInit(&result.vendor);
    ffStrbufInit(&result.slv);
    ffStrbufInit(&result.library);

    const char* error = ffDetectOpenGL(options, &result);
    if (error) {
        ffPrintError(FF_OPENGL_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, "%s", error);
    } else {
        if (options->moduleArgs.outputFormat.length == 0) {
            ffPrintLogoAndKey(FF_OPENGL_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT);
            puts(result.version.chars);
        } else {
            FF_PRINT_FORMAT_CHECKED(FF_OPENGL_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, ((FFformatarg[]) {
                                                                                                               FF_ARG(result.version, "version"),
                                                                                                               FF_ARG(result.renderer, "renderer"),
                                                                                                               FF_ARG(result.vendor, "vendor"),
                                                                                                               FF_ARG(result.slv, "slv"),
                                                                                                               FF_ARG(result.library, "library"),
                                                                                                           }));
        }
        success = true;
    }

    ffStrbufDestroy(&result.version);
    ffStrbufDestroy(&result.renderer);
    ffStrbufDestroy(&result.vendor);
    ffStrbufDestroy(&result.slv);
    ffStrbufDestroy(&result.library);

    return success;
}

void ffParseOpenGLJsonObject(FFOpenGLOptions* 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;
        }

        if (unsafe_yyjson_equals_str(key, "library")) {
            int value;
            const char* error = ffJsonConfigParseEnum(val, &value, (FFKeyValuePair[]) {
                                                                       { "auto", FF_OPENGL_LIBRARY_AUTO },
                                                                       { "egl", FF_OPENGL_LIBRARY_EGL },
                                                                       { "glx", FF_OPENGL_LIBRARY_GLX },
                                                                       {},
                                                                   });
            if (error) {
                ffPrintError(FF_OPENGL_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, "Invalid %s value: %s", unsafe_yyjson_get_str(key), error);
            } else {
                options->library = (FFOpenGLLibrary) value;
            }
            continue;
        }

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

void ffGenerateOpenGLJsonConfig(FFOpenGLOptions* options, yyjson_mut_doc* doc, yyjson_mut_val* module) {
    ffJsonConfigGenerateModuleArgsConfig(doc, module, &options->moduleArgs);

    switch (options->library) {
        case FF_OPENGL_LIBRARY_AUTO:
            yyjson_mut_obj_add_str(doc, module, "library", "auto");
            break;
        case FF_OPENGL_LIBRARY_EGL:
            yyjson_mut_obj_add_str(doc, module, "library", "egl");
            break;
        case FF_OPENGL_LIBRARY_GLX:
            yyjson_mut_obj_add_str(doc, module, "library", "glx");
            break;
    }
}

bool ffGenerateOpenGLJsonResult(FF_A_UNUSED FFOpenGLOptions* options, yyjson_mut_doc* doc, yyjson_mut_val* module) {
    bool success = false;
    FFOpenGLResult result;
    ffStrbufInit(&result.version);
    ffStrbufInit(&result.renderer);
    ffStrbufInit(&result.vendor);
    ffStrbufInit(&result.slv);
    ffStrbufInit(&result.library);

    const char* error = ffDetectOpenGL(options, &result);
    if (error != NULL) {
        yyjson_mut_obj_add_str(doc, module, "error", error);
    } else {
        yyjson_mut_val* obj = yyjson_mut_obj_add_obj(doc, module, "result");
        yyjson_mut_obj_add_strbuf(doc, obj, "version", &result.version);
        yyjson_mut_obj_add_strbuf(doc, obj, "renderer", &result.renderer);
        yyjson_mut_obj_add_strbuf(doc, obj, "vendor", &result.vendor);
        yyjson_mut_obj_add_strbuf(doc, obj, "slv", &result.slv);
        yyjson_mut_obj_add_strbuf(doc, obj, "library", &result.library);
        success = true;
    }

    ffStrbufDestroy(&result.version);
    ffStrbufDestroy(&result.renderer);
    ffStrbufDestroy(&result.vendor);
    ffStrbufDestroy(&result.slv);
    ffStrbufDestroy(&result.library);

    return success;
}

void ffInitOpenGLOptions(FFOpenGLOptions* options) {
    ffOptionInitModuleArg(&options->moduleArgs, "");

    options->library = FF_OPENGL_LIBRARY_AUTO;
}

void ffDestroyOpenGLOptions(FFOpenGLOptions* options) {
    ffOptionDestroyModuleArg(&options->moduleArgs);
}

FFModuleBaseInfo ffOpenGLModuleInfo = {
    .name = FF_OPENGL_MODULE_NAME,
    .description = "Print the highest OpenGL version supported by the GPU",
    .initOptions = (void*) ffInitOpenGLOptions,
    .destroyOptions = (void*) ffDestroyOpenGLOptions,
    .parseJsonObject = (void*) ffParseOpenGLJsonObject,
    .printModule = (void*) ffPrintOpenGL,
    .generateJsonResult = (void*) ffGenerateOpenGLJsonResult,
    .generateJsonConfig = (void*) ffGenerateOpenGLJsonConfig,
    .formatArgs = FF_FORMAT_ARG_LIST(((FFModuleFormatArg[]) {
        { "OpenGL version", "version" },
        { "OpenGL renderer", "renderer" },
        { "OpenGL vendor", "vendor" },
        { "OpenGL shading language version", "slv" },
        { "OpenGL library used", "library" },
    }))
};
