<template>
  <div id="Shake">
    <van-popup v-model="show">
      <div class="ad-box">
        <span class="skip-ad" @click="hideAD">跳過廣告({{time}})</span>
        <img src="../../../../assets/img/shake/shake_ad.jpg" alt>
      </div>
    </van-popup>
    <div class="shake-page">
      <span class="cash-withdrawal-btn">提現</span>
      <img
        class="shake-img shake-horizontal"
        :class="shake?'shake-horizontal-move':''"
        src="../../../../assets/img/shake/shake.png"
        alt="搖一搖"
        @click="shakeImg"
      >
    </div>
    <audio
      style="display: none;"
      :src="publicDir + '/static/audio/5018.mp3'"
      ref="musicBox"
      preload="preload"
      controls
    ></audio>
  </div>
</template>

<script>
import { setTimeout } from "timers";
import config from "../../../../utils/config.js";
export default {
  name: "Shake",
  data() {
    return {
      time: 5,
      show: true,
      shake: false,
      SHAKE_THRESHOLD: 3000,
      last_update: 0,
      last_x: 0,
      last_y: 0,
      last_z: 0,
      publicDir: config.publicDir
    };
  },
  mounted() {
    this.init();
    this.countDown();
  },
  methods: {
    // 廣告倒計時
    countDown() {
      setTimeout(() => {
        if (this.time < 1) {
          this.show = false;
        } else {
          this.time--;
          this.countDown();
        }
      }, 1000);
    },
    // 顯示廣告
    showPopup() {
      this.show = true;
    },
    // 隱藏廣告
    hideAD() {
      this.show = false;
    },
    // 開啟圖片搖動效果
    shakeImg() {
      if (!this.show) {
        this.shake = true;
        this.$refs.musicBox.play();
        window.removeEventListener("devicemotion", this.deviceMotionHandler, false);
        setTimeout(() => {
          this.shake = false;
          this.routerPush("/RedBag");
        }, 2000);
      }
    },
    // 路由跳轉
    routerPush(path, query) {
      this.$router.push({
        path,
        query
      });
    },
    // 初始化搖一搖，添加搖動監聽
    init() {
      this.last_update = new Date().getTime();
      if (window.DeviceMotionEvent) {
        window.addEventListener(
          "devicemotion",
          this.deviceMotionHandler,
          false
        );
      } else {
        alert("not support mobile event");
      }
    },
    // 搖一搖事件回調函數
    deviceMotionHandler(eventData) {
      var acceleration = eventData.accelerationIncludingGravity;
      var curTime = new Date().getTime();
      if (curTime - this.last_update > 100) {
        var diffTime = curTime - this.last_update;
        this.last_update = curTime;
        var x = 0,
          y = 0,
          z = 0;
        x = acceleration.x;
        y = acceleration.y;
        z = acceleration.z;
        var speed =
          (Math.abs(x + y + z - this.last_x - this.last_y - this.last_z) /
            diffTime) *
          10000;
        if (Number(speed) > Number(this.SHAKE_THRESHOLD)) {
          // 判斷為搖一搖動作
          this.shakeImg();
        }
        this.last_x = x;
        this.last_y = y;
        this.last_z = z;
      }
    }
  }
};
</script>

<style lang="less">
#Shake {
  .ad-box {
    width: 100vw;
    height: 100vh;
    img {
      width: 100%;
      height: 100%;
    }
  }
  .skip-ad {
    position: fixed;
    top: 20px;
    right: 20px;
    color: white;
    background-color: rgba(0, 0, 0, 0.2);
    padding: 10px 20px;
    border-radius: 10px;
  }
  .shake-page {
    width: 100vw;
    height: 100vh;
    background-image: url("../../../../assets/img/shake/shake_bg.jpg");
    background-size: 100% 100%;
    padding-top: 0.1px;
    .shake-img {
      display: block;
      width: 469px;
      height: auto;
      margin: auto;
      margin-top: 350px;
      pointer-events: auto;
    }
  }
  .cash-withdrawal-btn {
    color: white;
    position: fixed;
    border: 1px solid #eee;
    padding: 5px 40px;
    border-radius: 25px;
    top: 30px;
    right: 20px;
  }
  .shake-horizontal-move {
    display: inherit;
    transform-origin: center center;
    animation-play-state: running;
    animation-name: shake-horizontal;
    animation-duration: 100ms;
    animation-timing-function: ease-in-out;
    animation-iteration-count: infinite;
  }
  @keyframes shake-horizontal {
    2% {
      transform: translate(-7px, 0) rotate(0);
    }

    4% {
      transform: translate(-5px, 0) rotate(0);
    }

    6% {
      transform: translate(4px, 0) rotate(0);
    }

    8% {
      transform: translate(-4px, 0) rotate(0);
    }

    10% {
      transform: translate(-6px, 0) rotate(0);
    }

    12% {
      transform: translate(2px, 0) rotate(0);
    }

    14% {
      transform: translate(-5px, 0) rotate(0);
    }

    16% {
      transform: translate(-3px, 0) rotate(0);
    }

    18% {
      transform: translate(2px, 0) rotate(0);
    }

    20% {
      transform: translate(3px, 0) rotate(0);
    }

    22% {
      transform: translate(-2px, 0) rotate(0);
    }

    24% {
      transform: translate(-3px, 0) rotate(0);
    }

    26% {
      transform: translate(-9px, 0) rotate(0);
    }

    28% {
      transform: translate(2px, 0) rotate(0);
    }

    30% {
      transform: translate(7px, 0) rotate(0);
    }

    32% {
      transform: translate(2px, 0) rotate(0);
    }

    34% {
      transform: translate(0px, 0) rotate(0);
    }

    36% {
      transform: translate(-1px, 0) rotate(0);
    }

    38% {
      transform: translate(6px, 0) rotate(0);
    }

    40% {
      transform: translate(-7px, 0) rotate(0);
    }

    42% {
      transform: translate(0px, 0) rotate(0);
    }

    44% {
      transform: translate(-1px, 0) rotate(0);
    }

    46% {
      transform: translate(-2px, 0) rotate(0);
    }

    48% {
      transform: translate(10px, 0) rotate(0);
    }

    50% {
      transform: translate(-8px, 0) rotate(0);
    }

    52% {
      transform: translate(-9px, 0) rotate(0);
    }

    54% {
      transform: translate(9px, 0) rotate(0);
    }

    56% {
      transform: translate(-2px, 0) rotate(0);
    }

    58% {
      transform: translate(-5px, 0) rotate(0);
    }

    60% {
      transform: translate(2px, 0) rotate(0);
    }

    62% {
      transform: translate(-4px, 0) rotate(0);
    }

    64% {
      transform: translate(1px, 0) rotate(0);
    }

    66% {
      transform: translate(-3px, 0) rotate(0);
    }

    68% {
      transform: translate(10px, 0) rotate(0);
    }

    70% {
      transform: translate(4px, 0) rotate(0);
    }

    72% {
      transform: translate(-6px, 0) rotate(0);
    }

    74% {
      transform: translate(-6px, 0) rotate(0);
    }

    76% {
      transform: translate(2px, 0) rotate(0);
    }

    78% {
      transform: translate(-2px, 0) rotate(0);
    }

    80% {
      transform: translate(-6px, 0) rotate(0);
    }

    82% {
      transform: translate(-1px, 0) rotate(0);
    }

    84% {
      transform: translate(-6px, 0) rotate(0);
    }

    86% {
      transform: translate(-5px, 0) rotate(0);
    }

    88% {
      transform: translate(-1px, 0) rotate(0);
    }

    90% {
      transform: translate(-1px, 0) rotate(0);
    }

    92% {
      transform: translate(-1px, 0) rotate(0);
    }

    94% {
      transform: translate(-3px, 0) rotate(0);
    }

    96% {
      transform: translate(-6px, 0) rotate(0);
    }

    98% {
      transform: translate(-6px, 0) rotate(0);
    }

    0%,
    100% {
      transform: translate(0, 0) rotate(0);
    }
  }
}
</style>