#include "uart_lcd.h"
#include "usart.h"
#include "lwip.h"

extern ip4_addr_t ipaddr;
uart_lcd_t uart_lcd_state = {0};
uint8_t uart_lcd_data[24] = {0xEE, 0xB1, 0x12, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x02, 0x00, 0x01, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0xFF, 0xFC, 0xFF, 0xFF};

static void uart_lcd_current_channel1(void);
static void uart_lcd_current_channel2(void);

static void uart_lcd_current_channel1(void)
{
    // uint8_t uart_lcd_data[24] = {0xEE, 0xB1, 0x12, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x02, 0x00, 0x01, 0x01, 0x00, 0x03, 0x00, 0x01, 0x00, 0xFF, 0xFC, 0xFF, 0xFF};
    dma_usart_send(&huart4, uart_lcd_data, ARRAY_LEN(uart_lcd_data));
}
uint8_t uart_lcd_data2[24] = {0xEE, 0xB1, 0x12, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x03, 0x00, 0x01, 0x01, 0xFF, 0xFC, 0xFF, 0xFF};

static void uart_lcd_current_channel2(void)
{
    dma_usart_send(&huart4, uart_lcd_data2, ARRAY_LEN(uart_lcd_data2));
}

/**
 * @brief 通过UART向LCD屏幕绘制IP地址
 *
 * 此函数通过UART接口向LCD屏幕发送IP地址，以便在屏幕上显示。
 *
 * @note 此函数假定已经正确初始化了UART接口，并且LCD屏幕已经正确连接到UART接口。
 */
void uart_lcd_draw_ipaddr(void)
{
    uint8_t ip_addr[24] = {0};
    // 串口发送的固定值为串口屏指令指定的帧头帧尾
    ip_addr[0] = 0xEE; // 帧头
    ip_addr[1] = 0xB1;
    ip_addr[2] = 0x10; // 命令码，此处为文本控件文本设置指令
    ip_addr[3] = 0x00; // 画面ID高位地址
    ip_addr[4] = 0x00; // 画面ID低位地址
    ip_addr[5] = 0x00; // 控件ID高位地址
    ip_addr[6] = 0x03; // 控件ID低位地址
    char *ip_addr_str = ipaddr_ntoa(&ipaddr);
    MEMCPY(ip_addr + 7, (uint8_t *)ip_addr_str, strlen(ip_addr_str));
    ip_addr[7 + strlen(ip_addr_str)] = 0xFF; // 帧尾，下列都为帧尾
    ip_addr[8 + strlen(ip_addr_str)] = 0xFC;
    ip_addr[9 + strlen(ip_addr_str)] = 0xFF;
    ip_addr[10 + strlen(ip_addr_str)] = 0xFF;
    dma_usart_send(&huart4, ip_addr, ARRAY_LEN(ip_addr));
}

void uart_lcd_init(void)
{
    uart_lcd_state.page_num = 0;
    uart_lcd_state.key_state[0] = 0;
    uart_lcd_state.key_state[1] = 1;
    uart_lcd_state.key_state[2] = 0;
    uart_lcd_state.current_value[0] = 0;
    uart_lcd_state.current_value[1] = 0;
    uart_lcd_channel_switch(uart_lcd_state.key_state[0]);
    HAL_Delay(10);
    uart_lcd_current_out(0);
    HAL_Delay(10);
    uart_lcd_current_out(1);
}
uint8_t lcd_channel[15] = {0xEE, 0xB1, 0x10, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFC, 0xFF, 0xFF};

void uart_lcd_current_out(uint8_t channel)
{

    if (channel == 0)
    {
        lcd_channel[6] = 0x04;
        lcd_channel[10] = uart_lcd_state.current_value[0];
        dma_usart_send(&huart4, lcd_channel, ARRAY_LEN(lcd_channel));
    }
    else if (channel == 1)
    {
        lcd_channel[6] = 0x05;
        lcd_channel[10] = uart_lcd_state.current_value[1];
        dma_usart_send(&huart4, lcd_channel, ARRAY_LEN(lcd_channel));
    }
}

void uart_lcd_channel_switch(uint8_t channel)
{
    switch (channel)
    {
    case 0:
        uart_lcd_current_channel1();
        break;
    case 1:
        uart_lcd_current_channel2();
        break;
    default:
        uart_lcd_current_channel1();
        break;
    }
}