// const btn = document.querySelector("#switch");

// chrome.storage.sync.get("linkOpen", ({ linkOpen }) => {
//   btn.checked = linkOpen;
// });

// btn.addEventListener("change", () => {
//   if (btn.checked) {
//     chrome.storage.sync.set({ linkOpen: true });
//   } else {
//     chrome.storage.sync.set({ linkOpen: false });
//   }
//   // 获取当前tab窗口
//   chrome.tabs.query({ active: true, currentWindow: true }, function (tabs) {
//     chrome.scripting.executeScript({
//       target: { tabId: tabs[0].id },
//       func: refreshPage,
//     });
//   });
// });

// // 刷新页面
// function refreshPage() {
//   window.location.reload();
// }

const startBtn = document.getElementById("start-btn");
const resetBtn = document.getElementById("reset-btn");
const endBtn = document.getElementById("end-btn");
const countdownTimer = document.getElementById("countdown");

const audio = document.getElementById("audio");
//全局唯一的定时器
let timer = null;

let minutes, seconds;
let pause;
let pomodoro = "pomodoro";

//两端通信 防抖
// let clickFlag = false;

//番茄钟按钮-绑定事件
document.addEventListener("click", (e) => {
  if (!e.target.matches(".button")) return;

  // reset when pomodoro button selected
  pause = true;
  seconds = 60;
  startBtn.innerHTML = "开始";

  chrome.storage.sync.set({ pause: pause, seconds: seconds }, function () {
    if (!chrome.runtime.error) {
      alert("初始化pause、seconds");
    }
  });

  // 定时器初始化
  if (e.target.matches("#pomodoro-btn")) {
    countdownTimer.innerHTML = "25:00";
    pomodoro = "pomodoro";
    minutes = 25;
    chrome.storage.sync.set(
      { minutes: minutes, countdownTimer: "25:00" },
      function () {
        if (!chrome.runtime.error) {
          alert("added target pomodoro!");
        }
      }
    );
  }
});

// 开始按钮-绑定事件
startBtn.addEventListener("click", () => {
  // countdown(); 在后台运行，需要取出状态
  debounce(start(), 100);
});

function start() {
  chrome.storage.sync.get("pomoData", ({ pomoData }) => {
    const { minutes, seconds, status } = pomoData;

    chrome.runtime.sendMessage(
      {
        status: "start",
        senderId: "pomo",
        content: {
          minutes,
          seconds,
        },
      },
      (response) => {
        console.log(response);

        startBtn.style.display = "none";
        endBtn.style.display = "block";
        getTimer();
      }
    );
  });
}

endBtn.addEventListener("click", () => {
  setTimeout(end, 200);
});

function end() {
  chrome.runtime.sendMessage(
    {
      status: "paused",
      senderId: "pomo",
    },
    (response) => {
      console.log(response);

      startBtn.style.display = "block";
      endBtn.style.display = "none";
      clearTimer();
    }
  );
}

function getTimer() {
  clearTimer();
  timer = setInterval(() => {
    chrome.storage.sync.get("pomoData", ({ pomoData }) => {
      // console.log("pomodata****",pomoData)
      // const{minutes,seconds,countdownTimer} = pomoData;
      countdownTimer.innerHTML = pomoData.countdownTimer;

      //更新后倒计时判断，如果结束则重新初始化界面
      if(pomoData.countdownTimer == "00:00"){

        audio.play();
        //不能放在页面上，要在后台进行
        chrome.runtime.sendMessage(
          {
            status: "playend",
            senderId: "pomo",
          },
          (response) => {
            console.log(response,"**************下面");
            countdownTimer.innerHTML = "25:00";

            startBtn.style.display = "block";
            endBtn.style.display = "none";
            clearTimer();
          }
        );

      }
    });
  }, 200);

}

function clearTimer() {
  clearInterval(timer);
}

/*
 * fn [function] 需要防抖的函数
 * delay [number] 毫秒，防抖期限值
 */
function debounce(fn, delay) {
  let timer = null; //借助闭包
  return function () {
    if (timer) {
      clearTimeout(timer); //进入该分支语句，说明当前正在一个计时过程中，并且又触发了相同事件。所以要取消当前的计时，重新开始计时
      timer = setTimeout(fn, delay);
    } else {
      timer = setTimeout(fn, delay); // 进入该分支说明当前并没有在计时，那么就开始一个计时
    }
  };
}

// 重置按钮-绑定事件
resetBtn.addEventListener("click", () => {
  setTimeout(() => {
    chrome.runtime.sendMessage(
      {
        status: "reset",
        senderId: "pomo",
      },
      (response) => {
        // console.log(response);
        countdownTimer.innerHTML = "25:00";

        startBtn.style.display = "block";
        endBtn.style.display = "none";
        clearTimer();
      }
    );
  }, 100);
});

//页面反复打开时页面初始化
chrome.storage.sync.get("pomoData", ({ pomoData }) => {
  console.log(pomoData);
  const { status } = pomoData;

  if (status === "start") {
    startBtn.style.display = "none";
    endBtn.style.display = "block";
    getTimer();
  } else if (status === "paused") {
    startBtn.style.display = "block";
    endBtn.style.display = "none";
    chrome.storage.sync.get("pomoData", ({ pomoData }) => {
      countdownTimer.innerHTML = pomoData.countdownTimer;
    });
  } else if (status === "init") {
    chrome.runtime.sendMessage({
      status: "init",
      senderId: "pomo",
    });
    countdownTimer.innerHTML = "25:00";
  }else if(status === 'playend'){
    countdownTimer.innerHTML = "25:00";
  }
});