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

static void printDevice(FFKeyboardOptions* options, const FFKeyboardDevice* device, uint8_t index) {
    if (options->moduleArgs.outputFormat.length == 0) {
        ffPrintLogoAndKey(FF_KEYBOARD_MODULE_NAME, index, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT);
        ffStrbufPutTo(&device->name, stdout);
    } else {
        FF_PRINT_FORMAT_CHECKED(FF_KEYBOARD_MODULE_NAME, index, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, ((FFformatarg[]) {
                                                                                                                 FF_ARG(device->name, "name"),
                                                                                                                 FF_ARG(device->serial, "serial"),
                                                                                                             }));
    }
}

bool ffPrintKeyboard(FFKeyboardOptions* options) {
    FF_LIST_AUTO_DESTROY result = ffListCreate();

    const char* error = ffDetectKeyboard(&result);

    if (error) {
        ffPrintError(FF_KEYBOARD_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, "%s", error);
        return false;
    }

    if (!result.length) {
        ffPrintError(FF_KEYBOARD_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, "No devices detected");
        return false;
    }

    FF_LIST_AUTO_DESTROY filtered = ffListCreate();
    FF_LIST_FOR_EACH (FFKeyboardDevice, device, result) {
        bool ignored = false;
        FF_LIST_FOR_EACH (FFstrbuf, ignore, options->ignores) {
            if (ffStrbufStartsWithIgnCase(&device->name, ignore)) {
                ignored = true;
                break;
            }
        }
        if (!ignored) {
            FFKeyboardDevice** ptr = FF_LIST_ADD(FFKeyboardDevice*, filtered);
            *ptr = device;
        }
    }

    bool ret = true;
    if (!filtered.length) {
        ffPrintError(FF_KEYBOARD_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, "All devices are ignored");
        ret = false;
    } else {
        uint8_t index = 0;
        FF_LIST_FOR_EACH (FFKeyboardDevice*, pdevice, filtered) {
            FFKeyboardDevice* device = *pdevice;
            printDevice(options, device, filtered.length > 1 ? ++index : 0);
            ffStrbufDestroy(&device->serial);
            ffStrbufDestroy(&device->name);
        }
    }

    return ret;
}

void ffParseKeyboardJsonObject(FFKeyboardOptions* 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, "ignores")) {
            yyjson_val* elem;
            size_t eidx, emax;
            yyjson_arr_foreach (val, eidx, emax, elem) {
                if (yyjson_is_str(elem)) {
                    FFstrbuf* strbuf = FF_LIST_ADD(FFstrbuf, options->ignores);
                    ffStrbufInitJsonVal(strbuf, elem);
                }
            }
            continue;
        }

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

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

    if (options->ignores.length > 0) {
        yyjson_mut_val* ignores = yyjson_mut_obj_add_arr(doc, module, "ignores");
        FF_LIST_FOR_EACH (FFstrbuf, strbuf, options->ignores) {
            yyjson_mut_arr_append(ignores, yyjson_mut_strncpy(doc, strbuf->chars, strbuf->length));
        }
    }
}

bool ffGenerateKeyboardJsonResult(FF_A_UNUSED FFKeyboardOptions* options, yyjson_mut_doc* doc, yyjson_mut_val* module) {
    FF_LIST_AUTO_DESTROY result = ffListCreate();

    const char* error = ffDetectKeyboard(&result);

    if (error) {
        yyjson_mut_obj_add_str(doc, module, "error", error);
        return false;
    }

    yyjson_mut_val* arr = yyjson_mut_obj_add_arr(doc, module, "result");
    FF_LIST_FOR_EACH (FFKeyboardDevice, device, result) {
        yyjson_mut_val* obj = yyjson_mut_arr_add_obj(doc, arr);
        yyjson_mut_obj_add_strbuf(doc, obj, "serial", &device->serial);
        yyjson_mut_obj_add_strbuf(doc, obj, "name", &device->name);

        bool ignored = false;
        FF_LIST_FOR_EACH (FFstrbuf, ignore, options->ignores) {
            if (ffStrbufStartsWithIgnCase(&device->name, ignore)) {
                ignored = true;
                break;
            }
        }
        yyjson_mut_obj_add_bool(doc, obj, "ignored", ignored);
    }

    FF_LIST_FOR_EACH (FFKeyboardDevice, device, result) {
        ffStrbufDestroy(&device->serial);
        ffStrbufDestroy(&device->name);
    }

    return true;
}

void ffInitKeyboardOptions(FFKeyboardOptions* options) {
    ffOptionInitModuleArg(&options->moduleArgs, "");

    ffListInit(&options->ignores);
}

void ffDestroyKeyboardOptions(FFKeyboardOptions* options) {
    ffOptionDestroyModuleArg(&options->moduleArgs);

    FF_LIST_FOR_EACH (FFstrbuf, str, options->ignores) {
        ffStrbufDestroy(str);
    }
    ffListDestroy(&options->ignores);
}

FFModuleBaseInfo ffKeyboardModuleInfo = {
    .name = FF_KEYBOARD_MODULE_NAME,
    .description = "List connected keyboards",
    .initOptions = (void*) ffInitKeyboardOptions,
    .destroyOptions = (void*) ffDestroyKeyboardOptions,
    .parseJsonObject = (void*) ffParseKeyboardJsonObject,
    .printModule = (void*) ffPrintKeyboard,
    .generateJsonResult = (void*) ffGenerateKeyboardJsonResult,
    .generateJsonConfig = (void*) ffGenerateKeyboardJsonConfig,
    .formatArgs = FF_FORMAT_ARG_LIST(((FFModuleFormatArg[]) {
        { "Name", "name" },
        { "Serial number", "serial" },
    }))
};