#include "subghz_transmitter.h"
#include "../subghz_i.h"

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

struct SubghzTransmitter {
    View* view;
    SubghzTransmitterCallback callback;
    void* context;
};

typedef struct {
    string_t frequency_str;
    string_t preset_str;
    string_t key_str;
    uint8_t show_button;
} SubghzTransmitterModel;

void subghz_transmitter_set_callback(
    SubghzTransmitter* subghz_transmitter,
    SubghzTransmitterCallback callback,
    void* context) {
    furi_assert(subghz_transmitter);

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

void subghz_transmitter_add_data_to_show(
    SubghzTransmitter* subghz_transmitter,
    const char* key_str,
    const char* frequency_str,
    const char* preset_str,
    uint8_t show_button) {
    furi_assert(subghz_transmitter);
    with_view_model(
        subghz_transmitter->view, (SubghzTransmitterModel * model) {
            string_set(model->key_str, key_str);
            string_set(model->frequency_str, frequency_str);
            string_set(model->preset_str, preset_str);
            model->show_button = show_button;
            return true;
        });
}

static void subghz_transmitter_button_right(Canvas* canvas, const char* str) {
    const uint8_t button_height = 13;
    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, &I_ButtonCenter_7x7);
    canvas_draw_str(
        canvas, x + horizontal_offset + icon_width_with_offset, y - vertical_offset, str);
    canvas_invert_color(canvas);
}

void subghz_transmitter_draw(Canvas* canvas, SubghzTransmitterModel* model) {
    canvas_clear(canvas);
    canvas_set_color(canvas, ColorBlack);
    canvas_set_font(canvas, FontSecondary);
    elements_multiline_text(canvas, 0, 8, string_get_cstr(model->key_str));
    canvas_draw_str(canvas, 78, 8, string_get_cstr(model->frequency_str));
    canvas_draw_str(canvas, 113, 8, string_get_cstr(model->preset_str));
    if(model->show_button) subghz_transmitter_button_right(canvas, "Send");
}

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

    if(event->key == InputKeyBack && event->type == InputTypeShort) {
        with_view_model(
            subghz_transmitter->view, (SubghzTransmitterModel * model) {
                string_reset(model->frequency_str);
                string_reset(model->preset_str);
                string_reset(model->key_str);
                model->show_button = 0;
                return false;
            });
        return false;
    }

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

    if(can_be_sent && event->key == InputKeyOk && event->type == InputTypePress) {
        subghz_transmitter->callback(
            SubghzCustomEventViewTransmitterSendStart, subghz_transmitter->context);
        return true;
    } else if(can_be_sent && event->key == InputKeyOk && event->type == InputTypeRelease) {
        subghz_transmitter->callback(
            SubghzCustomEventViewTransmitterSendStop, subghz_transmitter->context);
        return true;
    }

    return true;
}

void subghz_transmitter_enter(void* context) {
    furi_assert(context);
    // SubghzTransmitter* subghz_transmitter = context;
}

void subghz_transmitter_exit(void* context) {
    furi_assert(context);
    // SubghzTransmitter* subghz_transmitter = context;
}

SubghzTransmitter* subghz_transmitter_alloc() {
    SubghzTransmitter* subghz_transmitter = furi_alloc(sizeof(SubghzTransmitter));

    // View allocation and configuration
    subghz_transmitter->view = view_alloc();
    view_allocate_model(
        subghz_transmitter->view, ViewModelTypeLocking, sizeof(SubghzTransmitterModel));
    view_set_context(subghz_transmitter->view, subghz_transmitter);
    view_set_draw_callback(subghz_transmitter->view, (ViewDrawCallback)subghz_transmitter_draw);
    view_set_input_callback(subghz_transmitter->view, subghz_transmitter_input);
    view_set_enter_callback(subghz_transmitter->view, subghz_transmitter_enter);
    view_set_exit_callback(subghz_transmitter->view, subghz_transmitter_exit);

    with_view_model(
        subghz_transmitter->view, (SubghzTransmitterModel * model) {
            string_init(model->frequency_str);
            string_init(model->preset_str);
            string_init(model->key_str);
            return true;
        });
    return subghz_transmitter;
}

void subghz_transmitter_free(SubghzTransmitter* subghz_transmitter) {
    furi_assert(subghz_transmitter);

    with_view_model(
        subghz_transmitter->view, (SubghzTransmitterModel * model) {
            string_clear(model->frequency_str);
            string_clear(model->preset_str);
            string_clear(model->key_str);
            return true;
        });
    view_free(subghz_transmitter->view);
    free(subghz_transmitter);
}

View* subghz_transmitter_get_view(SubghzTransmitter* subghz_transmitter) {
    furi_assert(subghz_transmitter);
    return subghz_transmitter->view;
}