<template>
  <!-- #ifdef APP -->
  <scroll-view style="flex: 1;">
  <!-- #endif -->
    <view>
      <page-head :title="title"></page-head>
      <!-- #ifdef APP-IOS -->
      <view style="padding-left: 20px; padding-right: 20px;">
      		<text style="color: #353535; font-size: 15px;">
      			iOS 调试首先需要添加对应 audio、video、image 存储到文件系统中，步骤如下：\n
      			1. 从系统相册或者语音备忘录中选择具体的video、image、audio；\n
      			2. 点击 ‘分享’ 按钮；\n
      			3. 下滑点击 ’存储到”文件“‘按钮；\n
      		</text>
      </view>
      <!-- #endif -->
      <button size="mini" @click="log=''">清空日志</button>
      <text style="margin: 2px; padding: 2px; border: 1px solid #000000;">{{ log }}</text>

      <button class="btnstyle" type="primary" @tap="chooseVideo">选择文件(video) 单选</button>
      <button class="btnstyle" type="primary" @tap="chooseVideoMul">选择文件(video) 多选</button>
      <button class="btnstyle" type="primary" @tap="playVideo">选择文件(video)并播放</button>
      <video class="video" :src="src" :controls="true" :autoplay="true" :loop="true">111</video>
      <button class="btnstyle" type="primary" @tap="chooseImage">选择文件(image) 单选</button>
      <button class="btnstyle" type="primary" @tap="chooseImageMul">选择文件(image) 多选</button>
      <button class="btnstyle" type="primary" @tap="viewImg">选择文件(image) 并预览</button>
      <button class="btnstyle" type="primary" @tap="chooseAudio">选择文件(audio) 单选</button>
      <button class="btnstyle" type="primary" @tap="chooseAudioMul">选择文件(audio) 多选</button>
      <button class="btnstyle" type="primary" @tap="playAudio">选择文件(audio) 并播放</button>
      <button class="btnstyle" type="primary" @tap='chooseAll'>选择文件(all) 单选</button>
      <button class="btnstyle" type="primary" @tap='chooseAllMul'>选择文件(all) 多选</button>

      <view style="height: 4px;"></view>
    </view>
  <!-- #ifdef APP -->
  </scroll-view>
  <!-- #endif -->
</template>

<script>
  export default {
    data() {
      return {
        log: '',
        title: 'choose-file',
        src: '',
        _audioContext: null as InnerAudioContext | null,
      }
    },
    unmounted() {
      if (this._audioContext != null) {
        this._audioContext!.destroy()
      }
    },
    methods: {

      getPath(chooseFils : ChooseFileTempFile[]) : string {
        var urls = new Array<string>()
        chooseFils.forEach(value => {
          urls.push(value.path)
        })
        return urls.join(', ')
      },
      chooseVideo() {
        uni.chooseFile({
          type: 'video',
          count: 1,
          success: (res) => {
            console.log(res)
            if (res.tempFiles.length > 0) {
              this.log += this.getPath(res.tempFiles) + '\n\n'
            }
          },
          complete: (res) => {
            console.log(res)
          }
        })
      },
      chooseVideoMul() {
        uni.chooseFile({
          type: 'video',
          success: (res) => {
            console.log(res)
            if (res.tempFiles.length > 0) {
              this.log += this.getPath(res.tempFiles) + '\n\n'
            }
          },
          complete: (res) => {
            console.log(res)
          }
        })
      },
      playVideo() {
        uni.chooseFile({
          type: 'video',
          count: 1,
          success: (res) => {
            console.log(res)
            if (res.tempFiles.length > 0) {
              this.src = res.tempFiles[0].path
              this._audioContext?.destroy()
              this._audioContext = null
            }
          },
          complete: (res) => {
            console.log(res)
          }
        })
      },
      chooseImage() {
        uni.chooseFile({
          type: 'image',
          count: 1,
          success: (res) => {
            console.log(res)
            if (res.tempFiles.length > 0) {
              this.log += this.getPath(res.tempFiles) + '\n\n'
            }
          },
          complete: (res) => {
            console.log(res)
          }
        })
      },
      chooseImageMul() {
        uni.chooseFile({
          type: 'image',
          count: 90,
          success: (res) => {
            console.log(res)
            if (res.tempFiles.length > 0) {
              this.log += this.getPath(res.tempFiles) + '\n\n'
            }
          },
          complete: (res) => {
            console.log(res)
          }
        })
      },
      viewImg() {
        uni.chooseFile({
          type: 'image',
          success: (res) => {
            console.log(res)
            if (res.tempFiles.length > 0) {
              const tempFiles: Array<string> = res.tempFiles.map((value) => {
              	return value.path
              })
              uni.previewImage({
                current: 0,
                urls: tempFiles,
                success: (res) => {
                  console.log(res)
                },
                fail: (err) => {
                  console.log(err)
                }
              })
            }
          },
          complete: (res) => {
            console.log(res)
          }
        })
      },
      chooseAudio() {
        uni.chooseFile({
          type: 'audio',
          count: 1,
          success: (res) => {
            console.log(res)
            if (res.tempFiles.length > 0) {
              this.log += this.getPath(res.tempFiles) + '\n\n'
            }
          },
          complete: (res) => {
            console.log(res)
          }
        })
      },
      chooseAudioMul() {
        uni.chooseFile({
          type: 'audio',
          success: (res) => {
            console.log(res)
            if (res.tempFiles.length > 0) {
              this.log += this.getPath(res.tempFiles) + '\n\n'
            }
          },
          complete: (res) => {
            console.log(res)
          }
        })
      },
      playAudio() {
        uni.chooseFile({
          type: 'audio',
          count: 1,
          success: (res) => {
            console.log(res);
            if (res.tempFiles.length > 0) {
              if (this._audioContext == null) {
              this.src = ''
                this._audioContext = uni.createInnerAudioContext()
                this._audioContext!.autoplay = true
              } else if (!this._audioContext!.paused) {
                this._audioContext!.stop()
              }
              this._audioContext!.src = res.tempFiles[0].path
            }
          },
          complete: (res) => {
            console.log(res);
          }
        });

      },
      chooseAll() {
        uni.chooseFile({
          type: 'all',
          count: 1,
          success: (res) => {
            console.log(res)
            if (res.tempFiles.length > 0) {
              this.log += this.getPath(res.tempFiles) + '\n\n'
            }
          },
          complete: (res) => {
            console.log(res)
          }
        })
      },
      chooseAllMul() {
        uni.chooseFile({
          type: 'all',
          success: (res) => {
            console.log(res)
            if (res.tempFiles.length > 0) {
              this.log += this.getPath(res.tempFiles) + '\n\n'
            }
          },
          complete: (res) => {
            console.log(res)
          }
        })
      }
    }
  }
</script>

<style>
  .btnstyle {
    margin: 4px;
  }

  .video {
    width: 100%;
    height: 225px;
  }

  .uni-uploader__input-box {
    margin: 5px;
    width: 104px;
    height: 104px;
    border: 1px solid #D9D9D9;
  }
</style>