/*
  ESP32 HTTPClient Jokes API Example

  https://wokwi.com/projects/342032431249883731

  Copyright (C) 2022, Uri Shaked
*/

#include <WiFi.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>

const char* ssid = "Wokwi-GUEST";
const char* password = "";

#define BTN_PIN 5
#define TFT_DC 2
#define TFT_CS 15
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);
bool wifiConnected= false;




String addCloth(String code) {
    String formData = "content="+code;  // 替换为您要发送的form-data格式的数据
    HTTPClient http;
    http.useHTTP10(true);
    http.begin(url);
    http.addHeader("Content-Type", "application/x-www-form-urlencoded");
    http.POST(formData);
    String result = http.getString();
    http.end();
    return "success";
}
void getCode(String code) {
    tft.fillRect(100, 100, 200, 60, ILI9341_BLACK);  // 清除之前的文本
    tft.setCursor(100, 100);
    tft.setTextColor(ILI9341_GREEN);
    tft.setTextSize(2);
    tft.println(code);
    String data = addCloth(code);
    tft.setCursor(100, 130);
    tft.setTextColor(ILI9341_GREEN);
    tft.setTextSize(2);
    tft.println(data);

}




void printWifiStatus(){
    tft.setCursor(100, 40);
    tft.setTextColor(ILI9341_WHITE);
    tft.setTextSize(2);
    tft.println("Connecting");
    while (WiFi.status() != WL_CONNECTED) {
        delay(1000);
        if(WiFi.status()==WL_CONNECTED){
            tft.fillRect(100, 40, 200, 30, ILI9341_BLACK);  // 清除之前的文本
            tft.setCursor(100, 40);
            tft.setTextColor(ILI9341_WHITE);
            tft.setTextSize(2);
            tft.println("Connected");
        }
    }
}
void toastMsg(String msg){
    tft.fillRect(0, 0,320, 30, ILI9341_RED);  // 清除之前的文本
    // 绘制WiFi连接状态
    tft.setCursor(0, 0);
    tft.setTextColor(ILI9341_WHITE);
    tft.setTextSize(2);
    tft.println(msg);
}


bool logined= false;
void login(String code){
    if(code=="123456"){
        tft.setCursor(100, 70);
        tft.setTextColor(ILI9341_RED);
        tft.setTextSize(2);
        tft.println("zhangsan");
        toastMsg("user login");
        logined= true;
        tft.setCursor(10, 100);
        tft.setTextColor(ILI9341_GREEN);
        tft.setTextSize(2);
        tft.println("Code:");
        tft.setCursor(10, 130);
        tft.setTextColor(ILI9341_GREEN);
        tft.setTextSize(2);
        tft.println("Return:");
    }else{
        toastMsg("user card error!");
    }
}





void reLogin(){
    tft.fillRect(100, 70,320, 30, ILI9341_BLACK);
    toastMsg("please login!");
    logined= false;
    tft.fillRect(10, 100,320, 60, ILI9341_BLACK);

}


void setup() {
    pinMode(BTN_PIN, INPUT_PULLUP);
    WiFi.begin(ssid, password, 6);
    tft.begin();
    tft.setRotation(1);
    tft.setTextColor(ILI9341_WHITE);
    tft.setTextSize(2);
    Serial.begin(9600);


    tft.fillRect(0, 0,320, 30, ILI9341_RED);
    // 绘制WiFi连接状态
    tft.setCursor(10, 40);
    tft.setTextColor(ILI9341_WHITE);
    tft.setTextSize(2);
    tft.println("WiFi:");
    printWifiStatus();
    tft.setCursor(10, 70);
    tft.setTextColor(ILI9341_RED);
    tft.setTextSize(2);
    tft.println("User:");
    reLogin();
}
void loop() {
    if (Serial.available() > 0) {
        String inputString = Serial.readString();  // 读取串口输入的字符串
        if (inputString.charAt(inputString.length() - 1) == '\r') {
            inputString = inputString.substring(0, inputString.length() - 1);  // 去除回车符
        }else if (inputString.charAt(inputString.length() - 1) == '\n') {
            inputString = inputString.substring(0, inputString.length() - 1);  // 去除回车符
        }
        if(logined){
            getCode( inputString);
        }else{
            login(inputString);
        }
    }
    if (digitalRead(BTN_PIN) == LOW) {
        reLogin();
    }


}