#include "transmitter.h"

#include <assets_icons.h>
#include <input/input.h>
#include <gui/elements.h>

#include <lib/subghz/blocks/custom_btn.h>

struct SubGhzViewTransmitter {
    View* view;
    SubGhzViewTransmitterCallback callback;
    void* context;
};

typedef struct {
    FuriString* frequency_str;
    FuriString* preset_str;
    FuriString* key_str;
    bool show_button;
    SubGhzRadioDeviceType device_type;
    FuriString* temp_button_id;
    bool draw_temp_button;
} SubGhzViewTransmitterModel;

void subghz_view_transmitter_set_callback(
    SubGhzViewTransmitter* subghz_transmitter,
    SubGhzViewTransmitterCallback callback,
    void* context) {
    furi_assert(subghz_transmitter);

    subghz_transmitter->callback = callback;
    subghz_transmitter->context = context;
}

void subghz_view_transmitter_add_data_to_show(
    SubGhzViewTransmitter* subghz_transmitter,
    const char* key_str,
    const char* frequency_str,
    const char* preset_str,
    bool show_button) {
    furi_assert(subghz_transmitter);
    with_view_model(
        subghz_transmitter->view,
        SubGhzViewTransmitterModel * model,
        {
            furi_string_set(model->key_str, key_str);
            furi_string_set(model->frequency_str, frequency_str);
            furi_string_set(model->preset_str, preset_str);
            model->show_button = show_button;
        },
        true);
}

void subghz_view_transmitter_set_radio_device_type(
    SubGhzViewTransmitter* subghz_transmitter,
    SubGhzRadioDeviceType device_type) {
    furi_assert(subghz_transmitter);
    with_view_model(
        subghz_transmitter->view,
        SubGhzViewTransmitterModel * model,
        { model->device_type = device_type; },
        true);
}

static void subghz_view_transmitter_button_right(Canvas* canvas, const char* str) {
    const uint8_t button_height = 12;
    const uint8_t vertical_offset = 3;
    const uint8_t horizontal_offset = 1;
    const uint8_t string_width = canvas_string_width(canvas, str);
    const Icon* icon = &I_ButtonCenter_7x7;
    const uint8_t icon_offset = 3;
    const uint8_t icon_width_with_offset = icon_get_width(icon) + icon_offset;
    const uint8_t button_width = string_width + horizontal_offset * 2 + icon_width_with_offset;

    const uint8_t x = (canvas_width(canvas) - button_width) / 2 + 40;
    const uint8_t y = canvas_height(canvas);

    canvas_draw_box(canvas, x, y - button_height, button_width, button_height);

    canvas_draw_line(canvas, x - 1, y, x - 1, y - button_height + 0);
    canvas_draw_line(canvas, x - 2, y, x - 2, y - button_height + 1);
    canvas_draw_line(canvas, x - 3, y, x - 3, y - button_height + 2);

    canvas_draw_line(canvas, x + button_width + 0, y, x + button_width + 0, y - button_height + 0);
    canvas_draw_line(canvas, x + button_width + 1, y, x + button_width + 1, y - button_height + 1);
    canvas_draw_line(canvas, x + button_width + 2, y, x + button_width + 2, y - button_height + 2);

    canvas_invert_color(canvas);
    canvas_draw_icon(
        canvas,
        x + horizontal_offset,
        y - button_height + vertical_offset - 1,
        &I_ButtonCenter_7x7);
    canvas_draw_str(
        canvas, x + horizontal_offset + icon_width_with_offset, y - vertical_offset, str);
    canvas_invert_color(canvas);
}

void subghz_view_transmitter_draw(Canvas* canvas, SubGhzViewTransmitterModel* model) {
    canvas_clear(canvas);
    canvas_set_color(canvas, ColorBlack);
    canvas_set_font(canvas, FontSecondary);
    elements_multiline_text_aligned(
        canvas, 0, 0, AlignLeft, AlignTop, furi_string_get_cstr(model->key_str));
    canvas_draw_str(canvas, 78, 7, furi_string_get_cstr(model->frequency_str));
    canvas_draw_str(canvas, 113, 7, furi_string_get_cstr(model->preset_str));

    if(model->draw_temp_button) {
        canvas_set_font(canvas, FontBatteryPercent);
        canvas_draw_str(canvas, 117, 40, furi_string_get_cstr(model->temp_button_id));
        canvas_set_font(canvas, FontSecondary);
    }

    if(model->show_button) {
        // TODO
        canvas_draw_str(
            canvas,
            58,
            62,
            (model->device_type == SubGhzRadioDeviceTypeInternal) ? "R: Int" : "R: Ext");
        subghz_view_transmitter_button_right(canvas, "Send");
    }
}

bool subghz_view_transmitter_input(InputEvent* event, void* context) {
    furi_assert(context);
    SubGhzViewTransmitter* subghz_transmitter = context;
    bool can_be_sent = false;

    if(event->key == InputKeyBack && event->type == InputTypeShort) {
        with_view_model(
            subghz_transmitter->view,
            SubGhzViewTransmitterModel * model,
            {
                furi_string_reset(model->frequency_str);
                furi_string_reset(model->preset_str);
                furi_string_reset(model->key_str);
                furi_string_reset(model->temp_button_id);
                model->show_button = false;
                model->draw_temp_button = false;
            },
            false);
        return false;
    } // Finish "Back" key processing

    with_view_model(
        subghz_transmitter->view,
        SubGhzViewTransmitterModel * model,
        {
            if(model->show_button) {
                can_be_sent = true;
            }
        },
        true);

    if(can_be_sent) {
        if(event->key == InputKeyOk && event->type == InputTypePress) {
            subghz_custom_btn_set(SUBGHZ_CUSTOM_BTN_OK);
            with_view_model(
                subghz_transmitter->view,
                SubGhzViewTransmitterModel * model,
                {
                    furi_string_reset(model->temp_button_id);
                    model->draw_temp_button = false;
                },
                true);
            subghz_transmitter->callback(
                SubGhzCustomEventViewTransmitterSendStart, subghz_transmitter->context);
            return true;
        } else if(event->key == InputKeyOk && event->type == InputTypeRelease) {
            subghz_transmitter->callback(
                SubGhzCustomEventViewTransmitterSendStop, subghz_transmitter->context);
            return true;
        } // Finish "OK" key processing

        if(subghz_custom_btn_is_allowed()) {
            uint8_t temp_btn_id;
            if(event->key == InputKeyUp) {
                temp_btn_id = SUBGHZ_CUSTOM_BTN_UP;
            } else if(event->key == InputKeyDown) {
                temp_btn_id = SUBGHZ_CUSTOM_BTN_DOWN;
            } else if(event->key == InputKeyLeft) {
                temp_btn_id = SUBGHZ_CUSTOM_BTN_LEFT;
            } else if(event->key == InputKeyRight) {
                temp_btn_id = SUBGHZ_CUSTOM_BTN_RIGHT;
            } else {
                // Finish processing if the button is different
                return true;
            }

            if(event->type == InputTypePress) {
                with_view_model(
                    subghz_transmitter->view,
                    SubGhzViewTransmitterModel * model,
                    {
                        furi_string_reset(model->temp_button_id);
                        if(subghz_custom_btn_get_original() != 0) {
                            if(subghz_custom_btn_set(temp_btn_id)) {
                                furi_string_printf(
                                    model->temp_button_id,
                                    "%01X",
                                    subghz_custom_btn_get_original());
                                model->draw_temp_button = true;
                            }
                        }
                    },
                    true);
                subghz_transmitter->callback(
                    SubGhzCustomEventViewTransmitterSendStart, subghz_transmitter->context);
                return true;
            } else if(event->type == InputTypeRelease) {
                subghz_transmitter->callback(
                    SubGhzCustomEventViewTransmitterSendStop, subghz_transmitter->context);
                return true;
            }
        }
    }

    return true;
}

void subghz_view_transmitter_enter(void* context) {
    furi_assert(context);
}

void subghz_view_transmitter_exit(void* context) {
    furi_assert(context);
}

SubGhzViewTransmitter* subghz_view_transmitter_alloc(void) {
    SubGhzViewTransmitter* subghz_transmitter = malloc(sizeof(SubGhzViewTransmitter));

    // View allocation and configuration
    subghz_transmitter->view = view_alloc();
    view_allocate_model(
        subghz_transmitter->view, ViewModelTypeLocking, sizeof(SubGhzViewTransmitterModel));
    view_set_context(subghz_transmitter->view, subghz_transmitter);
    view_set_draw_callback(
        subghz_transmitter->view, (ViewDrawCallback)subghz_view_transmitter_draw);
    view_set_input_callback(subghz_transmitter->view, subghz_view_transmitter_input);
    view_set_enter_callback(subghz_transmitter->view, subghz_view_transmitter_enter);
    view_set_exit_callback(subghz_transmitter->view, subghz_view_transmitter_exit);

    with_view_model(
        subghz_transmitter->view,
        SubGhzViewTransmitterModel * model,
        {
            model->frequency_str = furi_string_alloc();
            model->preset_str = furi_string_alloc();
            model->key_str = furi_string_alloc();
            model->temp_button_id = furi_string_alloc();
        },
        true);
    return subghz_transmitter;
}

void subghz_view_transmitter_free(SubGhzViewTransmitter* subghz_transmitter) {
    furi_assert(subghz_transmitter);

    with_view_model(
        subghz_transmitter->view,
        SubGhzViewTransmitterModel * model,
        {
            furi_string_free(model->frequency_str);
            furi_string_free(model->preset_str);
            furi_string_free(model->key_str);
            furi_string_free(model->temp_button_id);
        },
        true);
    view_free(subghz_transmitter->view);
    free(subghz_transmitter);
}

View* subghz_view_transmitter_get_view(SubGhzViewTransmitter* subghz_transmitter) {
    furi_assert(subghz_transmitter);
    return subghz_transmitter->view;
}
