#include "ui.h"
#include "lcd.h"
#include "gpio.h"
#include "thread.h"
#include <fcntl.h>
#include <unistd.h>
#include <linux/input.h>

#if 1
    #define LOGD  log_d
    #define LOGE  log_e
#else
    #define LOGD  printf
    #define LOGE  printf
#endif

typedef struct {
    int tp;
    int key;
    int up;         //0: release  1: press
}key_data_t;

typedef struct {
    int fd;
}ui_handle_t;
static ui_handle_t uiHandle={0};


static int key_init(ui_handle_t *h)
{
    h->fd = open("/dev/input/event0", O_RDWR, 0);
    return (h->fd<0)?-1:0;
}
static int key_deinit(ui_handle_t *h)
{
    close(h->fd);
    return 0;
}
static int key_get(ui_handle_t *h, key_data_t *k)
{
    int r;
    struct input_event event;
    
    r = read(h->fd, &event, sizeof(event));
    if(r<0) {
        return -1;
    }
    
    printf("_____ evt.type: %d, value: %d, code: %d\n", event.type, event.value, event.code);
    switch (event.type) {
        case EV_KEY:
        {
            k->tp = event.type;
            k->up = (event.value==0)?1:0;
            k->key = event.code;
        }
        break;
    }
    
    return 0;
}
static int menu_init(ui_handle_t *h)
{ 
    key_init(h);
    lcd_init(LCD_WIDTH,LCD_HEIGHT,LCD_COLOR);
    
    lcd_fill(0);
    //lcd_draw_string(10, 10,  80, 30, "Smart; Hello!", FONT_0806, COLOR_WHITE, COLOR_BLACK, HORIZONTAL_LEFT, VERTICAL_CENTER);
    //lcd_draw_string(10, 30,  80, 30, "Voltage: 22.4V", FONT_0806, COLOR_WHITE, COLOR_BLACK, HORIZONTAL_LEFT, VERTICAL_CENTER);
    lcd_draw_string(10, 30, 80, 30, "Voltage: 22.4V", FONT_1206, COLOR_WHITE, COLOR_BLACK, HORIZONTAL_LEFT, VERTICAL_CENTER);
    lcd_refresh();
    
    return 0;
}
static int menu_deinit(ui_handle_t *h)
{
    key_deinit(h);
    lcd_deinit();
    
    return 0;
}
static int menu_handle(ui_handle_t *h)
{
    int r;
    key_data_t kd;
    
    r = key_get(h, &kd);
    if(r==0) {
        switch(kd.key) {
            case KEY_LEFT:
            break;
        }
    }
    
    return 0;
}
static void *ui_thread(void *arg)
{
    int r;
    thread_handle_t *th=(thread_handle_t*)arg;
    ui_handle_t *h=(ui_handle_t*)th->arg;
    
    menu_init(h);
    while(th->quit==0) {
        menu_handle(h);
    }
    menu_deinit(h);
    
    pthread_exit(NULL);
}
/////////////////////////////////////////////////////


int ui_init(void)
{
    ui_handle_t *h=&uiHandle;
    
    thread_start(THREAD_ID_UI, ui_thread, h);
    
    return 0;
}