import { app } from '../../../scripts/app.js'
import { api } from '../../../scripts/api.js'
import { ComfyWidgets } from '../../../scripts/widgets.js'
import { $el } from '../../../scripts/ui.js'


async function uploadImage (blob, fileType = '.svg', filename) {

  // const blob = await (await fetch(src)).blob();
  const body = new FormData()
  body.append(
    'image',
    new File([blob], (filename || new Date().getTime()) + fileType)
  )

  const resp = await api.fetchApi('/upload/image', {
    method: 'POST',
    body
  })

  // console.log(resp)
  let data = await resp.json()
  let { name, subfolder } = data
  let src = api.apiURL(
    `/view?filename=${encodeURIComponent(
      name
    )}&type=input&subfolder=${subfolder}${app.getPreviewFormatParam()}${app.getRandParam()}`
  )

  return src
}

function base64ToBlobFromURL (base64URL, contentType) {
  return fetch(base64URL).then(response => response.blob())
}

function getContentTypeFromBase64 (base64Data) {
  const regex = /^data:(.+);base64,/
  const matches = base64Data.match(regex)
  if (matches && matches.length >= 2) {
    return matches[1]
  }
  return null
}

// 示例用法
// const base64Data = 'data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEAAAAAAAD/...'; // 替换为实际的base64图片数据
// const contentType = getContentTypeFromBase64(base64Data);
// console.log(contentType);

// // 示例用法
// const base64Data = '...'; // 替换为实际的base64图片数据
// const contentType = 'image/jpeg'; // 替换为实际的图片类型

// const blob = base64ToBlob(base64Data, contentType);
// console.log(blob);

function get_position_style (ctx, widget_width, y, node_height) {
  const MARGIN = 4 // the margin around the html element

  /* Create a transform that deals with all the scrolling and zooming */
  const elRect = ctx.canvas.getBoundingClientRect()
  const transform = new DOMMatrix()
    .scaleSelf(
      elRect.width / ctx.canvas.width,
      elRect.height / ctx.canvas.height
    )
    .multiplySelf(ctx.getTransform())
    .translateSelf(MARGIN, MARGIN + y)

  return {
    transformOrigin: '0 0',
    transform: transform,
    left: `0`,
    top: `0`,
    cursor: 'pointer',
    position: 'absolute',
    maxWidth: `${widget_width - MARGIN * 2}px`,
    // maxHeight: `${node_height - MARGIN * 2}px`, // we're assuming we have the whole height of the node
    width: `${widget_width - MARGIN * 2}px`,
    // height: `${node_height * 0.3 - MARGIN * 2}px`,
    // background: '#EEEEEE',
    display: 'flex',
    flexDirection: 'column',
    // alignItems: 'center',
    justifyContent: 'space-around'
  }
}

const getLocalData = key => {
  let data = {}
  try {
    data = JSON.parse(localStorage.getItem(key)) || {}
  } catch (error) {
    return {}
  }
  return data
}

const setLocalDataOfWin = (key, value) => {
  localStorage.setItem(key, JSON.stringify(value))
  // window[key] = value
}

function createImage (url) {
  let im = new Image()
  return new Promise((res, rej) => {
    im.onload = () => res(im)
    im.src = url
  })
}

const parseImage = url => {
  return new Promise((res, rej) => {
    fetch(url)
      .then(response => response.blob())
      .then(blob => {
        const reader = new FileReader()
        reader.onloadend = () => {
          const base64data = reader.result
          res(base64data)
          // 在这里可以将base64数据用于进一步处理或显示图片
        }
        reader.readAsDataURL(blob)
      })
      .catch(error => {
        console.log('发生错误:', error)
      })
  })
}

const parseSvg = async svgContent => {
  let scale = 2
  // 创建一个临时的DOM元素来解析SVG
  const tempContainer = document.createElement('div')
  tempContainer.innerHTML = svgContent

  // 提取SVG元素
  const svgElement = tempContainer.querySelector('svg')
  if (!svgElement) return
  // 获取SVG中 rect元素
  var rectElements = svgElement?.querySelectorAll('rect') || []
  // console.log(rectElements,svgElement)
  // 定义一个数组来存储处理后的数据
  var data = []

  Array.from(rectElements, (rectElement, i) => {
    // 获取rect元素的属性值
    var x = ~~(rectElement.getAttribute('x') || 0)
    var y = ~~(rectElement.getAttribute('y') || 0)
    var width = ~~rectElement.getAttribute('width')
    var height = ~~rectElement.getAttribute('height')
    // console.log('rectElements',rectElement,x,y,width,height)
    if (x != undefined && y != undefined && width && height) {
      // 创建一个新的canvas元素
      var canvas = document.createElement('canvas')
      canvas.width = width
      canvas.height = height
      var context = canvas.getContext('2d')

      // 填充颜色到canvas
      var fill = rectElement.getAttribute('fill')
      context.fillStyle = fill
      context.fillRect(0, 0, width, height)

      // 将canvas转换为base64格式
      var base64 = canvas.toDataURL()

      // 将数据转化为指定的JSON格式

      var rectData = {
        x: parseInt(x),
        y: parseInt(y),
        width: parseInt(width),
        height: parseInt(height),
        z_index: i + 1,
        scale_option: 'width',
        image: base64,
        mask: base64,
        type: 'base64',
        _t: 'rect'
      }

      // 将处理后的数据添加到数组中
      data.push(rectData)
    }
  })

  var svgWidth = svgElement.getAttribute('width')
  var svgHeight = svgElement.getAttribute('height')

  if (!(svgWidth && svgHeight)) {
    // viewBox
    let viewBox = svgElement.viewBox.baseVal

    svgWidth = viewBox.width
    svgHeight = viewBox.height
  }

  // 创建一个新的canvas元素
  var canvas = document.createElement('canvas')
  canvas.width = svgWidth
  canvas.height = svgHeight
  var context = canvas.getContext('2d')
  // 绘制SVG到canvas
  var svgString = new XMLSerializer().serializeToString(svgElement)
  var DOMURL = window.URL || window.webkitURL || window

  var svgBlob = new Blob([svgString], { type: 'image/svg+xml;charset=utf-8' })
  var url = DOMURL.createObjectURL(svgBlob)

  let img = await createImage(url)
  context.drawImage(img, 0, 0)

  let base64 = canvas.toDataURL()

  var rectData = {
    x: 0,
    y: 0,
    width: parseInt(svgWidth),
    height: parseInt(svgHeight),
    z_index: 0,
    scale_option: 'width',
    image: base64,
    mask: base64,
    type: 'base64',
    _t: 'canvas'
  }
  data.push(rectData)

  // 打印处理后的数据
  console.log('layers', { data, image: base64, svgElement })
  return { data, image: base64, svgElement }
}

function exportModelViewerImage (
  modelViewer,
  width,
  height,
  format = 'image/png',
  quality = 1.0
) {
  const canvas = document.createElement('canvas')
  canvas.width = width
  canvas.height = height
  const context = canvas.getContext('2d')

  return new Promise((resolve, reject) => {
    context.drawImage(modelViewer, 0, 0, width, height)

    resolve(canvas.toDataURL(format, quality))
  })
}

app.registerExtension({
  name: 'Mixlab.image.SvgImage',
  async getCustomWidgets (app) {
    return {
      SVG (node, inputName, inputData, app) {
        // console.log('##node', node, inputName, inputData)
        const widget = {
          type: inputData[0], // the type, CHEESE
          name: inputName, // the name, slice
          size: [128, 88], // a default size
          draw (ctx, node, width, y) {},
          computeSize (...args) {
            return [128, 88] // a method to compute the current size of the widget
          },
          async serializeValue (nodeId, widgetIndex) {
            let d = getLocalData('_mixlab_svg_image')
            // console.log('serializeValue',d)
            if (d) {
              let url = d[node.id]
              let dt = await fetch(url)
              let svgStr = await dt.text()
              const { data, image } = (await parseSvg(svgStr)) || {}
              // console.log(data, image)
              return JSON.parse(JSON.stringify({ data, image }))
            } else {
              return
            }
          }
        }

        // console.log('##node',node.serialize)
        //  widget.something = something;          // maybe adds stuff to it
        node.addCustomWidget(widget) // adds it to the node

        return widget // and returns it.
      }
    }
  },

  async beforeRegisterNodeDef (nodeType, nodeData, app) {
    if (nodeType.comfyClass == 'SvgImage') {
      const orig_nodeCreated = nodeType.prototype.onNodeCreated
      nodeType.prototype.onNodeCreated = async function () {
        orig_nodeCreated?.apply(this, arguments)

        const uploadWidget = this.widgets.filter(w => w.name == 'upload')[0]
        // console.log('SvgImage nodeData',await uploadWidget.serializeValue())

        const widget = {
          type: 'div',
          name: 'upload-preview',
          draw (ctx, node, widget_width, y, widget_height) {
            Object.assign(
              this.div.style,
              get_position_style(ctx, widget_width, 44, node.size[1])
            )
          }
        }

        widget.div = $el('div', {})

        document.body.appendChild(widget.div)

        const inputDiv = (key, placeholder, svgContainer) => {
          let div = document.createElement('div')
          const ip = document.createElement('input')
          ip.type = 'file'
          ip.className = `${'comfy-multiline-input'} ${placeholder}`
          div.style = `display: flex;
          align-items: center; 
          margin: 6px 8px;
          margin-top: 0;`
          ip.placeholder = placeholder
          // ip.value = value

          ip.style = `outline: none;
          border: none;
          padding: 4px;
          width: 60%;cursor: pointer;
          height: 32px;`
          const label = document.createElement('label')
          label.style = 'font-size: 10px;min-width:32px'
          label.innerText = placeholder
          div.appendChild(label)
          div.appendChild(ip)

          let that = this

          ip.addEventListener('change', event => {
            const file = event.target.files[0]
            const reader = new FileReader()

            // 读取文件内容
            reader.onload = async e => {
              const svgContent = e.target.result

              var blob = new Blob([svgContent], { type: 'image/svg+xml' })
              let url = await uploadImage(blob)
              // console.log(url)
              const { svgElement, data, image } = await parseSvg(svgContent)
              // 将提取的SVG元素显示在页面上
              let dd = getLocalData(key)
              dd[that.id] = url
              setLocalDataOfWin(key, dd)
              // console.log(this.id, ip.value.trim())

              svgElement.style = `width: 90%;padding: 5%;`
              // 将提取的SVG元素显示在页面上

              svgContainer.innerHTML = ''
              svgContainer.appendChild(svgElement)
              let h = ~~getComputedStyle(svgElement).height.replace('px', '')
              if (that.size && that.size[1] < h) {
                that.setSize([that.size[0], that.size[1] + h])
                app.canvas.draw(true, true)
              }
              // console.log(that.size,~~getComputedStyle(svgElement).height.replace('px',''))

              uploadWidget.value = await uploadWidget.serializeValue()
            }

            // 以文本形式读取文件
            reader.readAsText(file)
          })
          return div
        }

        let svg = document.createElement('div')
        svg.className = 'preview'
        svg.style = `background:#eee;margin-top: 12px;`

        let upload = inputDiv('_mixlab_svg_image', 'Svg', svg)

        widget.div.appendChild(upload)
        widget.div.appendChild(svg)
        this.addCustomWidget(widget)

        const onRemoved = this.onRemoved
        this.onRemoved = () => {
          upload.remove()
          svg.remove()
          widget.div.remove()
          return onRemoved?.()
        }

        if (this.onResize) {
          this.onResize(this.size)
        }

        this.serialize_widgets = true //需要保存参数
      }
    }
  },
  async loadedGraphNode (node, app) {
    // Fires every time a node is constructed
    // You can modify widgets/add handlers/etc here
    const sleep = (t = 1000) => {
      return new Promise((res, rej) => {
        setTimeout(() => res(1), t)
      })
    }
    if (node.type === 'SvgImage') {
      // await sleep(0)
      let widget = node.widgets.filter(w => w.name === 'upload-preview')[0]

      let dd = getLocalData('_mixlab_svg_image')

      let id = node.id
      console.log('SvgImage load', node.widgets[0], node.widgets)
      if (!dd[id]) return
      let dt = await fetch(dd[id])
      let svgStr = await dt.text()

      const { svgElement, data, image } = await parseSvg(svgStr)
      svgElement.style = `width: 90%;padding: 5%;`
      // 将提取的SVG元素显示在页面上

      widget.div.querySelector('.preview').innerHTML = ''
      widget.div.querySelector('.preview').appendChild(svgElement)

      const uploadWidget = node.widgets.filter(w => w.name == 'upload')[0]
      uploadWidget.value = await uploadWidget.serializeValue()

      // let h=~~getComputedStyle(widget.div).height.replace('px','');
      // let w=~~getComputedStyle(widget.div).width.replace('px','');
      // // console.log('svg', w,h,node.size)
      // node.setSize([
      //   w,h
      // ])
      // app.graph.setDirtyCanvas(true)

      // console.log(node.widgets_values)
    }
  }
})

app.registerExtension({
  name: 'Mixlab.image.3DImage',
  async getCustomWidgets (app) {
    return {
      THREED (node, inputName, inputData, app) {
        // console.log('##node', node, inputName, inputData)
        const widget = {
          type: inputData[0], // the type, CHEESE
          name: inputName, // the name, slice
          size: [128, 88], // a default size
          draw (ctx, node, width, y) {},
          computeSize (...args) {
            return [128, 88] // a method to compute the current size of the widget
          },
          async serializeValue (nodeId, widgetIndex) {
            let d = getLocalData('_mixlab_3d_image')
            // console.log('serializeValue',d)
            if (d && d[node.id]) {
              let { url, bg } = d[node.id]
              let base64 = await parseImage(url)
              let bg_base64 = await parseImage(bg)

              return JSON.parse(
                JSON.stringify({ image: base64, bg_image: bg_base64 })
              )
            } else {
              return {}
            }
          }
        }
        node.addCustomWidget(widget)
        return widget
      }
    }
  },

  async beforeRegisterNodeDef (nodeType, nodeData, app) {
    if (nodeType.comfyClass == '3DImage') {
      const orig_nodeCreated = nodeType.prototype.onNodeCreated
      nodeType.prototype.onNodeCreated = async function () {
        orig_nodeCreated?.apply(this, arguments)

        const uploadWidget = this.widgets.filter(w => w.name == 'upload')[0]
        // console.log('3d nodeData', this.inputs)

        const widget = {
          type: 'div',
          name: 'upload-preview',
          draw (ctx, node, widget_width, y, widget_height) {
            Object.assign(
              this.div.style,
              get_position_style(ctx, widget_width, 88, node.size[1])
            )
          }
        }

        widget.div = $el('div', {})
        widget.div.style.width = `120px`

        document.body.appendChild(widget.div)

        const inputDiv = (key, placeholder, preview) => {
          let div = document.createElement('div')
          const ip = document.createElement('input')
          ip.type = 'file'
          ip.className = `${'comfy-multiline-input'} ${placeholder}`
          div.style = `display: flex;
          align-items: center; 
          margin: 6px 8px;
          margin-top: 0;`
          ip.placeholder = placeholder
          // ip.value = value

          ip.style = `outline: none;
          border: none;
          padding: 4px;
          width: 60%;cursor: pointer;
          height: 32px;`
          const label = document.createElement('label')
          label.style = 'font-size: 10px;min-width:32px'
          label.innerText = placeholder
          div.appendChild(label)
          div.appendChild(ip)

          let that = this,
            filename = new Date().getTime()

          ip.addEventListener('change', event => {
            const file = event.target.files[0]
            const reader = new FileReader()
            filename = new Date().getTime()
            // 读取文件内容
            reader.onload = async e => {
              const fileURL = URL.createObjectURL(file)
              // console.log('文件URL: ', fileURL)
              let html = `<model-viewer  src="${fileURL}" 
              min-field-of-view="0deg" max-field-of-view="180deg"
               shadow-intensity="1" 
               camera-controls 
               touch-action="pan-y">
               
               <div class="controls">
                <div>Variant: <select class="variant"></select></div>

                <div><button class="bg">BG</button></div>
              </div></model-viewer>`

              preview.innerHTML = html
              if (that.size[1] < 400) {
                that.setSize([that.size[0], that.size[1] + 300])
                app.canvas.draw(true, true)
              };

              const modelViewerVariants = preview.querySelector('model-viewer')
              const select = preview.querySelector('.variant')
              const bg = preview.querySelector('.bg')

              if (modelViewerVariants) {
                modelViewerVariants.style.width = `${that.size[0] - 24}px`
                modelViewerVariants.style.height = `${that.size[1] - 48}px`
              }


              modelViewerVariants.addEventListener('load', () => {
                const names = modelViewerVariants.availableVariants
                for (const name of names) {
                  const option = document.createElement('option')
                  option.value = name
                  option.textContent = name
                  select.appendChild(option)
                }
                // Adds a default option.
                const option = document.createElement('option')
                option.value = 'default'
                option.textContent = 'Default'
                select.appendChild(option)
              })


              let timer = null
              const delay = 500 // 延迟时间，单位为毫秒

              async function checkCameraChange () {
                let dd = getLocalData(key)
                let w, h
                let base64Data = modelViewerVariants.toDataURL()

                // if (dd[that.id]) {
                //   w = dd[that.id].bg_w
                //   h = dd[that.id].bg_h
                // }
                // // 在这里触发相机停止变化的事件
                // // console.log('在这里触发相机停止变化的事件')
                // // let base64Data = modelViewerVariants.toDataURL()
                // if (w && h) {
                //   base64Data = await exportModelViewerImage(
                //     modelViewerVariants.displaycanvas,
                //     w,
                //     h
                //   )
                // } else {

                // }

                const contentType = getContentTypeFromBase64(base64Data)

                const blob = await base64ToBlobFromURL(base64Data, contentType)

                //  const fileBlob = new Blob([e.target.result], { type: file.type });
                let url = await uploadImage(blob, '.png')
                // console.log(url)

                if (!dd[that.id]) dd[that.id] = { url, bg: '' }
                dd[that.id] = { ...dd[that.id], url }

                setLocalDataOfWin(key, dd)
              }

              function startTimer () {
                if (timer) clearTimeout(timer)
                timer = setTimeout(checkCameraChange, delay)
              }

              modelViewerVariants.addEventListener('camera-change', startTimer)

              select.addEventListener('input', event => {
                modelViewerVariants.variantName =
                  event.target.value === 'default' ? null : event.target.value
                checkCameraChange()
              })

              bg.addEventListener('click', () => {
                // 创建一个input元素
                var input = document.createElement('input')
                input.type = 'file'

                // 监听input的change事件
                input.addEventListener('change', function () {
                  // 获取上传的文件
                  var file = input.files[0]

                  // 创建一个FileReader对象来读取文件
                  var reader = new FileReader()

                  // 监听FileReader的load事件
                  reader.addEventListener('load', async () => {
                    let base64 = reader.result
                    // 将读取的文件内容设置为div的背景
                    preview.style.backgroundImage = 'url(' + base64 + ')'

                    const contentType = getContentTypeFromBase64(base64)

                    const blob = await base64ToBlobFromURL(base64, contentType)

                    //  const fileBlob = new Blob([e.target.result], { type: file.type });
                    let bg_url = await uploadImage(blob, '.png')
                    let bg_img = await createImage(base64)

                    let dd = getLocalData(key)
                    // console.log(dd[that.id],bg_url)
                    if (!dd[that.id]) dd[that.id] = { url: '', bg: bg_url }
                    dd[that.id] = {
                      ...dd[that.id],
                      bg: bg_url,
                      bg_w: bg_img.naturalWidth,
                      bg_h: bg_img.naturalHeight
                    }

                    setLocalDataOfWin(key, dd)

                    // 更新尺寸
                    let w = that.size[0] - 24,
                      h = (w * bg_img.naturalHeight) / bg_img.naturalWidth

                    if (modelViewerVariants) {
                      modelViewerVariants.style.width = `${w}px`
                      modelViewerVariants.style.height = `${h}px`
                    }
                    preview.style.width = `${w}px`

                  })

                  // 读取文件
                  reader.readAsDataURL(file)
                })

                // 触发input的点击事件
                input.click()
              })

              uploadWidget.value = await uploadWidget.serializeValue()

              // 更新尺寸
              let dd = getLocalData(key)
              // console.log(dd[that.id],bg_url)
              if (dd[that.id]) {
                const { bg_w, bg_h } = dd[that.id]
                if (bg_h && bg_w) {
                  let w = that.size[0] - 24,
                    h = (w * bg_h) / bg_w

                  if (modelViewerVariants) {
                    modelViewerVariants.style.width = `${w}px`
                    modelViewerVariants.style.height = `${h}px`
                  }
                  preview.style.width = `${w}px`
                }
              }
            }

            // 以文本形式读取文件
            reader.readAsDataURL(file)
          })
          return div
        }

        let preview = document.createElement('div')
        preview.className = 'preview'
        preview.style = `margin-top: 12px;display: flex;
        justify-content: center;
        align-items: center;background-repeat: no-repeat;background-size: contain;`

        let upload = inputDiv('_mixlab_3d_image', '3D Model', preview)

        widget.div.appendChild(upload)
        widget.div.appendChild(preview)
        this.addCustomWidget(widget)

        const onResize = this.onResize
        let that=this;
        this.onResize = function () {

          let modelViewerVariants = preview.querySelector('model-viewer')

           // 更新尺寸
           let dd = getLocalData('_mixlab_3d_image')
           // console.log(dd[that.id],bg_url)
           if (dd[that.id]) {
             const { bg_w, bg_h } = dd[that.id]
             if (bg_h && bg_w) {
               let w = that.size[0] - 24,
                 h = (w * bg_h) / bg_w

               if (modelViewerVariants) {
                 modelViewerVariants.style.width = `${w}px`
                 modelViewerVariants.style.height = `${h}px`
               }
               preview.style.width = `${w}px`
             }
           }

          return onResize?.apply(this, arguments)
        }

        const onRemoved = this.onRemoved
        this.onRemoved = () => {
          upload.remove()
          preview.remove()
          widget.div.remove()
          return onRemoved?.()
        }

        if (this.onResize) {
          this.onResize(this.size)
        }

        this.serialize_widgets = true //需要保存参数
      }
    }
  },
  async loadedGraphNode (node, app) {
    // Fires every time a node is constructed
    // You can modify widgets/add handlers/etc here
    const sleep = (t = 1000) => {
      return new Promise((res, rej) => {
        setTimeout(() => res(1), t)
      })
    }
    if (node.type === '3DImage') {
      // await sleep(0)
      let widget = node.widgets.filter(w => w.name === 'upload-preview')[0]

      let dd = getLocalData('_mixlab_3d_image')

      let id = node.id
      // console.log('3dImage load', node.widgets[0], node.widgets)
      if (!dd[id]) return

      let { url, bg } = dd[id]
      if (!url) return
      // let base64 = await parseImage(url)

      let pre = widget.div.querySelector('.preview')
      pre.style.width = `${node.size[0]}px`
      pre.innerHTML = `
      ${url ? `<img src="${url}" style="width:100%"/>` : ''}
      `
      pre.style.backgroundImage = 'url(' + bg + ')'


      const uploadWidget = node.widgets.filter(w => w.name == 'upload')[0]
      uploadWidget.value = await uploadWidget.serializeValue()

      // let h=~~getComputedStyle(widget.div).height.replace('px','');
      // let w=~~getComputedStyle(widget.div).width.replace('px','');
      // // console.log('svg', w,h,node.size)
      // node.setSize([
      //   w,h
      // ])
      // app.graph.setDirtyCanvas(true)

      // console.log(node.widgets_values)
    }
  }
})