#include <stdio.h>
#include "gpio.h"
#include "ui.h"
#include "keypad.h"
#include "global.h"

void app_init() {
    // 程序开始时执行一次
    ui_screen_main();
    kp_query();
    printf("\n====start====\n");
}

void app_main_loop() {
    // 反复被调用执行
    uint8_t event = kp_query();
    uint8_t event_type = kp_Type(event);
    uint8_t event_value = kp_Value(event);
    if (event_type == kp_ROTATE_RIGHT || event_type == kp_ROTATE_LEFT) {
        // 调整频率
        if (event_type == kp_ROTATE_RIGHT) {
            global_data.freq += event_value;
        } else {
            global_data.freq -= event_value;
        }
        uint16_t limit_min = (global_data.rf_mode == G_RF_MODE_AM) ? G_AM_FREQ_MIN : G_FM_FREQ_MIN;
        uint16_t limit_max = (global_data.rf_mode == G_RF_MODE_AM) ? G_AM_FREQ_MAX : G_FM_FREQ_MAX;
        if (global_data.freq < limit_min) {
            global_data.freq = limit_min;
        } else if (global_data.freq > limit_max) {
            global_data.freq = limit_max;
        }
        printf("Freq: %d\n", global_data.freq);
        ui_com_freq_digital(1);
    } else if (event_type == kp_KEY_DOWN) {
        if (event_value == kp_KEY1) {
            // 切换FM和AM
            if (global_data.rf_mode == G_RF_MODE_AM) {
                global_data.rf_mode = G_RF_MODE_FM;
                global_data.freq = G_FM_FREQ_MIN;
            } else {
                global_data.rf_mode = G_RF_MODE_AM;
                global_data.freq = G_AM_FREQ_MIN;
            }
            ui_com_fm_am(1);
            ui_com_freq_digital(1);
        }
    } else if (event_type != kp_NOP) {
        printf("event: %d, key: %d\n", event_type, event_value);
    }
}