/**
 * {通知组件}
 * @author yutent<yutent.io@gmail.com>
 * @date 2023/04/10 17:17:10
 */

import { css, html, Component, bind, styleMap } from 'wkit'
import '../base/icon.js'

const ANIMATION = [
  { transform: 'translateX(60%)', opacity: 0 },
  { transform: 'translateX(0)', opacity: 1 }
]

const DEFAULT_OPT = {
  icon: '',
  image: '',
  body: '',
  progress: 0,
  duration: 4500
}

let notifyIns = null

function merge(opt = {}) {
  let output = { ...DEFAULT_OPT }

  for (let k in opt) {
    if (opt[k] !== void 0) {
      output[k] = opt[k]
    }
  }
  return output
}

class NotifyGroup extends Component {
  static styles = [
    css`
      :host {
        position: fixed;
        z-index: 65535;
        top: 0;
        right: 0;
      }
    `
  ]

  mounted() {
    this.$on('removed', ev => {
      if (this.children.length < 1) {
        notifyIns = null
        this.remove()
      }
    })
  }
}

class Notify extends Component {
  static props = {
    title: '',
    opt: { ...DEFAULT_OPT }
  }

  static styles = [
    css`
      :host {
        display: block;
        margin-top: 16px !important;
      }
      .noselect {
        -webkit-user-select: none;
        user-select: none;

        img,
        a {
          -webkit-user-drag: none;
        }
      }
      cite {
        font-style: normal;
      }
      .notification {
        width: 300px;
        padding: 12px;
        border-radius: 3px;
        font-size: 14px;
        background: rgba(255, 255, 255, 0.9);
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
      }

      .icon {
        flex-shrink: 0;
        width: 48px;
        height: 48px;
        margin-right: 8px;
      }
      .main,
      .content {
        display: flex;
      }
      .content {
        flex: 1;
        flex-direction: column;
      }
      .title {
        display: flex;
        align-items: center;
        justify-content: space-between;
        line-height: 2;

        wc-icon {
          --wc-icon-size: 14px;
          cursor: pointer;
        }
      }
    `,
    // 额外功能
    css`
      .image {
        width: 284px;
        height: 86px;
        margin-top: 8px;
        object-fit: cover;
      }
      .progress {
        width: 100%;
        margin-top: 8px;

        .bar {
          display: flex;
          width: 100%;
          height: 8px;
          border-radius: 4px;
          background: var(--color-plain-1);
        }

        .thumb {
          width: 10%;
          height: 8px;
          border-radius: 4px;
          background: var(--color-teal-1);
        }
      }
    `
  ]

  #up = null

  close() {
    clearTimeout(this.timer)
    this.$refs.box.$animate(true).then(_ => {
      this.remove()
      this.#up.$emit('removed')
    })
  }

  setProgress(val) {
    let n = +val || 0
    if (n < 0) {
      n = 0
    } else if (n > 100) {
      n = 100
    }
    this.opt.progress = n
    this.$requestUpdate()
  }

  mounted() {
    this.$refs.box.$animate()

    this.#up = this.parentNode

    if (this.opt.duration > 0) {
      this.timer = setTimeout(() => {
        this.close()
      }, this.opt.duration)
    }
  }

  render() {
    let progress = styleMap({ width: this.opt.progress + '%' })
    let iconShow = styleMap({ display: this.opt.icon ? '' : 'none' })
    let imageShow = styleMap({ display: this.opt.image ? '' : 'none' })
    let progressShow = styleMap({
      display: this.opt.progress > 0 ? '' : 'none'
    })

    return html`<div
      class="notification noselect"
      ref="box"
      #animation=${{ custom: ANIMATION }}
    >
      <main class="main">
        <img class="icon" src=${this.opt.icon} style=${iconShow} />
        <section class="content">
          <strong class="title">
            ${this.title}
            <wc-icon name="close" @click=${this.close}></wc-icon>
          </strong>
          <cite class="body">${this.opt.body}</cite>
        </section>
      </main>
      <img src=${this.opt.image} class="image" style=${imageShow} />

      <div class="progress" style=${progressShow}>
        <div class="bar"><span class="thumb" style=${progress}></span></div>
      </div>
    </div>`
  }
}

NotifyGroup.reg('notify-group')
Notify.reg('notify')

export default function notify(
  title = '通知',
  { icon, body, image, progress, duration }
) {
  //
  let container = notifyIns || document.createElement('wc-notify-group')
  let elem = document.createElement('wc-notify')

  elem.title = title

  elem.opt = merge({ icon, body, image, progress, duration })

  container.append(elem)

  if (!notifyIns) {
    notifyIns = container
    document.body.append(notifyIns)
  }

  return elem
}

window.notify = notify