#include "ssd1306_display.h"
#include "font_awesome_symbols.h"

#include <esp_log.h>
#include <esp_err.h>
#include <esp_lcd_panel_ops.h>
#include <esp_lcd_panel_vendor.h>
#include <esp_lvgl_port.h>
#include "assets/lang_config.h"

#define TAG "Ssd1306Display"

LV_FONT_DECLARE(font_awesome_30_1);

Ssd1306Display::Ssd1306Display(void* i2c_master_handle, int width, int height, bool mirror_x, bool mirror_y,
                               const lv_font_t* text_font, const lv_font_t* icon_font)
    : text_font_(text_font), icon_font_(icon_font) {
    width_ = width;
    height_ = height;

    ESP_LOGI(TAG, "Initialize LVGL");
    lvgl_port_cfg_t port_cfg = ESP_LVGL_PORT_INIT_CONFIG();
    port_cfg.task_priority = 1;
    lvgl_port_init(&port_cfg);

    // SSD1306 config
    esp_lcd_panel_io_i2c_config_t io_config = {
        .dev_addr = 0x3C,
        .on_color_trans_done = nullptr,
        .user_ctx = nullptr,
        .control_phase_bytes = 1,
        .dc_bit_offset = 6,
        .lcd_cmd_bits = 8,
        .lcd_param_bits = 8,
        .flags = {
            .dc_low_on_data = 0,
            .disable_control_phase = 0,
        },
        .scl_speed_hz = 400 * 1000,
    };

    ESP_ERROR_CHECK(esp_lcd_new_panel_io_i2c_v2((i2c_master_bus_t*)i2c_master_handle, &io_config, &panel_io_));

    ESP_LOGI(TAG, "Install SSD1306 driver");
    esp_lcd_panel_dev_config_t panel_config = {};
    panel_config.reset_gpio_num = -1;
    panel_config.bits_per_pixel = 1;

    esp_lcd_panel_ssd1306_config_t ssd1306_config = {
        .height = static_cast<uint8_t>(height_),
    };
    panel_config.vendor_config = &ssd1306_config;

    ESP_ERROR_CHECK(esp_lcd_new_panel_ssd1306(panel_io_, &panel_config, &panel_));
    ESP_LOGI(TAG, "SSD1306 driver installed");

    // Reset the display
    ESP_ERROR_CHECK(esp_lcd_panel_reset(panel_));
    if (esp_lcd_panel_init(panel_) != ESP_OK) {
        ESP_LOGE(TAG, "Failed to initialize display");
        return;
    }

    // Set the display to on
    ESP_LOGI(TAG, "Turning display on");
    ESP_ERROR_CHECK(esp_lcd_panel_disp_on_off(panel_, true));

    ESP_LOGI(TAG, "Adding LCD screen");
    const lvgl_port_display_cfg_t display_cfg = {
        .io_handle = panel_io_,
        .panel_handle = panel_,
        .control_handle = nullptr,
        .buffer_size = static_cast<uint32_t>(width_ * height_),
        .double_buffer = false,
        .trans_size = 0,
        .hres = static_cast<uint32_t>(width_),
        .vres = static_cast<uint32_t>(height_),
        .monochrome = true,
        .rotation = {
            .swap_xy = false,
            .mirror_x = mirror_x,
            .mirror_y = mirror_y,
        },
        .flags = {
            .buff_dma = 1,
            .buff_spiram = 0,
            .sw_rotate = 0,
            .full_refresh = 0,
            .direct_mode = 0,
        },
    };

    display_ = lvgl_port_add_disp(&display_cfg);
    if (display_ == nullptr) {
        ESP_LOGE(TAG, "Failed to add display");
        return;
    }

    if (height_ == 64) {
        SetupUI_128x64();
    } else {
        SetupUI_128x32();
    }
}

Ssd1306Display::~Ssd1306Display() {
    if (content_ != nullptr) {
        lv_obj_del(content_);
    }
    if (status_bar_ != nullptr) {
        lv_obj_del(status_bar_);
    }
    if (side_bar_ != nullptr) {
        lv_obj_del(side_bar_);
    }
    if (container_ != nullptr) {
        lv_obj_del(container_);
    }

    if (panel_ != nullptr) {
        esp_lcd_panel_del(panel_);
    }
    if (panel_io_ != nullptr) {
        esp_lcd_panel_io_del(panel_io_);
    }
    lvgl_port_deinit();
}

bool Ssd1306Display::Lock(int timeout_ms) {
    return lvgl_port_lock(timeout_ms);
}

void Ssd1306Display::Unlock() {
    lvgl_port_unlock();
}

void Ssd1306Display::SetChatMessage(const char* role, const char* content) {
    DisplayLockGuard lock(this);
    if (chat_message_label_ == nullptr) {
        return;
    }
    if (content_right_ == nullptr) {
        lv_label_set_text(chat_message_label_, content);
    } else {
        if (content == nullptr || content[0] == '\0') {
            lv_obj_add_flag(content_right_, LV_OBJ_FLAG_HIDDEN);
        } else {
            lv_label_set_text(chat_message_label_, content);
            lv_obj_clear_flag(content_right_, LV_OBJ_FLAG_HIDDEN);
        }
    }
}

void Ssd1306Display::SetupUI_128x64() {
    DisplayLockGuard lock(this);

    auto screen = lv_screen_active();
    lv_obj_set_style_text_font(screen, text_font_, 0);
    lv_obj_set_style_text_color(screen, lv_color_black(), 0);

    /* Container */
    container_ = lv_obj_create(screen);
    lv_obj_set_size(container_, LV_HOR_RES, LV_VER_RES);
    lv_obj_set_flex_flow(container_, LV_FLEX_FLOW_COLUMN);
    lv_obj_set_style_pad_all(container_, 0, 0);
    lv_obj_set_style_border_width(container_, 0, 0);
    lv_obj_set_style_pad_row(container_, 0, 0);

    /* Status bar */
    status_bar_ = lv_obj_create(container_);
    lv_obj_set_size(status_bar_, LV_HOR_RES, 16);
    lv_obj_set_style_border_width(status_bar_, 0, 0);
    lv_obj_set_style_pad_all(status_bar_, 0, 0);
    lv_obj_set_style_radius(status_bar_, 0, 0);

    /* Content */
    content_ = lv_obj_create(container_);
    lv_obj_set_scrollbar_mode(content_, LV_SCROLLBAR_MODE_OFF);
    lv_obj_set_style_radius(content_, 0, 0);
    lv_obj_set_style_pad_all(content_, 0, 0);
    lv_obj_set_width(content_, LV_HOR_RES);
    lv_obj_set_flex_grow(content_, 1);
    lv_obj_set_flex_flow(content_, LV_FLEX_FLOW_ROW);
    lv_obj_set_style_flex_main_place(content_, LV_FLEX_ALIGN_CENTER, 0);

    // 创建左侧固定宽度的容器
    content_left_ = lv_obj_create(content_);
    lv_obj_set_size(content_left_, 32, LV_SIZE_CONTENT);  // 固定宽度32像素
    lv_obj_set_style_pad_all(content_left_, 0, 0);
    lv_obj_set_style_border_width(content_left_, 0, 0);

    emotion_label_ = lv_label_create(content_left_);
    lv_obj_set_style_text_font(emotion_label_, &font_awesome_30_1, 0);
    lv_label_set_text(emotion_label_, FONT_AWESOME_AI_CHIP);
    lv_obj_center(emotion_label_);
    lv_obj_set_style_pad_top(emotion_label_, 8, 0);

    // 创建右侧可扩展的容器
    content_right_ = lv_obj_create(content_);
    lv_obj_set_size(content_right_, LV_SIZE_CONTENT, LV_SIZE_CONTENT);
    lv_obj_set_style_pad_all(content_right_, 0, 0);
    lv_obj_set_style_border_width(content_right_, 0, 0);
    lv_obj_set_flex_grow(content_right_, 1);
    lv_obj_add_flag(content_right_, LV_OBJ_FLAG_HIDDEN);

    chat_message_label_ = lv_label_create(content_right_);
    lv_label_set_text(chat_message_label_, "");
    lv_label_set_long_mode(chat_message_label_, LV_LABEL_LONG_SCROLL_CIRCULAR);
    lv_obj_set_style_text_align(chat_message_label_, LV_TEXT_ALIGN_LEFT, 0);
    lv_obj_set_width(chat_message_label_, width_ - 32);
    lv_obj_set_style_pad_top(chat_message_label_, 14, 0);

    // 延迟一定的时间后开始滚动字幕
    static lv_anim_t a;
    lv_anim_init(&a);
    lv_anim_set_delay(&a, 1000);
    lv_anim_set_repeat_count(&a, LV_ANIM_REPEAT_INFINITE);
    lv_obj_set_style_anim(chat_message_label_, &a, LV_PART_MAIN);
    lv_obj_set_style_anim_duration(chat_message_label_, lv_anim_speed_clamped(60, 300, 60000), LV_PART_MAIN);

    /* Status bar */
    lv_obj_set_flex_flow(status_bar_, LV_FLEX_FLOW_ROW);
    lv_obj_set_style_pad_all(status_bar_, 0, 0);
    lv_obj_set_style_border_width(status_bar_, 0, 0);
    lv_obj_set_style_pad_column(status_bar_, 0, 0);

    network_label_ = lv_label_create(status_bar_);
    lv_label_set_text(network_label_, "");
    lv_obj_set_style_text_font(network_label_, icon_font_, 0);

    notification_label_ = lv_label_create(status_bar_);
    lv_obj_set_flex_grow(notification_label_, 1);
    lv_obj_set_style_text_align(notification_label_, LV_TEXT_ALIGN_CENTER, 0);
    lv_label_set_text(notification_label_, "");
    lv_obj_add_flag(notification_label_, LV_OBJ_FLAG_HIDDEN);

    status_label_ = lv_label_create(status_bar_);
    lv_obj_set_flex_grow(status_label_, 1);
    lv_label_set_text(status_label_, Lang::Strings::INITIALIZING);
    lv_obj_set_style_text_align(status_label_, LV_TEXT_ALIGN_CENTER, 0);

    mute_label_ = lv_label_create(status_bar_);
    lv_label_set_text(mute_label_, "");
    lv_obj_set_style_text_font(mute_label_, icon_font_, 0);

    battery_label_ = lv_label_create(status_bar_);
    lv_label_set_text(battery_label_, "");
    lv_obj_set_style_text_font(battery_label_, icon_font_, 0);
}

void Ssd1306Display::SetupUI_128x32() {
    DisplayLockGuard lock(this);

    auto screen = lv_screen_active();
    lv_obj_set_style_text_font(screen, text_font_, 0);

    /* Container */
    container_ = lv_obj_create(screen);
    lv_obj_set_size(container_, LV_HOR_RES, LV_VER_RES);
    lv_obj_set_flex_flow(container_, LV_FLEX_FLOW_ROW);
    lv_obj_set_style_pad_all(container_, 0, 0);
    lv_obj_set_style_border_width(container_, 0, 0);
    lv_obj_set_style_pad_column(container_, 0, 0);

    /* Left side */
    side_bar_ = lv_obj_create(container_);
    lv_obj_set_flex_grow(side_bar_, 1);
    lv_obj_set_flex_flow(side_bar_, LV_FLEX_FLOW_COLUMN);
    lv_obj_set_style_pad_all(side_bar_, 0, 0);
    lv_obj_set_style_border_width(side_bar_, 0, 0);
    lv_obj_set_style_radius(side_bar_, 0, 0);
    lv_obj_set_style_pad_row(side_bar_, 0, 0);

    /* Emotion label on the right side */
    content_ = lv_obj_create(container_);
    lv_obj_set_size(content_, 32, 32);
    lv_obj_set_style_pad_all(content_, 0, 0);
    lv_obj_set_style_border_width(content_, 0, 0);
    lv_obj_set_style_radius(content_, 0, 0);

    emotion_label_ = lv_label_create(content_);
    lv_obj_set_style_text_font(emotion_label_, &font_awesome_30_1, 0);
    lv_label_set_text(emotion_label_, FONT_AWESOME_AI_CHIP);
    lv_obj_center(emotion_label_);

    /* Status bar */
    status_bar_ = lv_obj_create(side_bar_);
    lv_obj_set_size(status_bar_, LV_SIZE_CONTENT, 16);
    lv_obj_set_style_radius(status_bar_, 0, 0);
    lv_obj_set_flex_flow(status_bar_, LV_FLEX_FLOW_ROW);
    lv_obj_set_style_pad_all(status_bar_, 0, 0);
    lv_obj_set_style_border_width(status_bar_, 0, 0);
    lv_obj_set_style_pad_column(status_bar_, 0, 0);

    network_label_ = lv_label_create(status_bar_);
    lv_label_set_text(network_label_, "");
    lv_obj_set_style_text_font(network_label_, icon_font_, 0);

    mute_label_ = lv_label_create(status_bar_);
    lv_label_set_text(mute_label_, "");
    lv_obj_set_style_text_font(mute_label_, icon_font_, 0);

    battery_label_ = lv_label_create(status_bar_);
    lv_label_set_text(battery_label_, "");
    lv_obj_set_style_text_font(battery_label_, icon_font_, 0);

    status_label_ = lv_label_create(status_bar_);
    lv_obj_set_style_pad_left(status_label_, 2, 0);
    lv_label_set_text(status_label_, Lang::Strings::INITIALIZING);

    notification_label_ = lv_label_create(status_bar_);
    lv_label_set_text(notification_label_, "");
    lv_obj_set_style_pad_left(notification_label_, 2, 0);
    lv_obj_add_flag(notification_label_, LV_OBJ_FLAG_HIDDEN);

    chat_message_label_ = lv_label_create(side_bar_);
    lv_obj_set_flex_grow(chat_message_label_, 1);
    lv_obj_set_width(chat_message_label_, width_ - 32);
    lv_label_set_long_mode(chat_message_label_, LV_LABEL_LONG_SCROLL_CIRCULAR);
    lv_label_set_text(chat_message_label_, "");

    // 延迟一定的时间后开始滚动字幕
    static lv_anim_t a;
    lv_anim_init(&a);
    lv_anim_set_delay(&a, 1000);
    lv_anim_set_repeat_count(&a, LV_ANIM_REPEAT_INFINITE);
    lv_obj_set_style_anim(chat_message_label_, &a, LV_PART_MAIN);
    lv_obj_set_style_anim_duration(chat_message_label_, lv_anim_speed_clamped(60, 300, 60000), LV_PART_MAIN);
}

