import icon from '../../assets/icons/file-manager.svg'
import { App } from '../../types'

import FlowWindow from '../../structures/FlowWindow'

export default class FilesApp implements App {
  meta = {
    name: 'Files',
    description: 'A simple files app.',
    pkg: 'flow.files',
    version: '1.0.0',
    icon
  }

  async open (): Promise<FlowWindow> {
    const win = window.wm.createWindow({
      title: this.meta.name,
      icon: this.meta.icon,
      width: 500,
      height: 400
    })

    win.content.style.display = 'flex'
    win.content.style.flexDirection = 'column'

    async function setDir (dir: string): Promise<void> {
      const files = await window.fs.readdir(dir)
      const back = dir === '/' ? '<span class="material-symbols-rounded">first_page</span>' : '<span class="back material-symbols-rounded">chevron_left</span>'

      win.content.innerHTML = `
          <div style="padding: 5px;display: flex;align-items: center;gap: 5px;">
            ${back}${dir}
            <div style="flex:1;"></div>
            <i class='folder material-symbols-rounded' style="font-size: 17.5px;">create_new_folder</i><i class='file material-symbols-rounded' style="font-size: 17.5px;">note_add</i>
          </div>
          <div class="files" style="background: var(--base);flex: 1;border-radius: 10px;display: flex;flex-direction: column;"></div>
        `

      if (back !== '<span class="material-symbols-rounded">first_page</span>') {
        (win.content.querySelector('.back') as HTMLElement).onclick = async () => {
          await setDir(dir.split('/').slice(0, -1).join('/'))
        }
      }

      (win.content.querySelector('.file') as HTMLElement).onclick = async () => {
        const title: string = prompt('Enter file name') ?? 'new-file.txt'
        await window.fs.writeFile(`${dir}/${title}`, '')
        await setDir(dir)
      }

      (win.content.querySelector('.folder') as HTMLElement).onclick = async () => {
        const title: string = prompt('Enter folder name') ?? 'new-folder'
        await window.fs.mkdir(`${dir}/${title}`)
        await setDir(dir)
      }

      for (const file of files) {
        const seperator = dir === '/' ? '' : '/'
        const fileStat = await window.fs.stat(dir + seperator + file)
        const element = document.createElement('div')
        element.setAttribute('style', 'display: flex;gap: 5px;align-items:center;padding: 5px;border-bottom: 1px solid var(--text);display:flex;align-items:center;gap: 5px;')

        const genIcon = (): string => {
          switch (file.split('.').at(-1)) {
            case 'js':
            case 'mjs':
            case 'cjs': {
              return '<span class="material-symbols-rounded">javascript</span>'
            }

            case 'html':
            case 'htm': {
              return '<span class="material-symbols-rounded">html</span>'
            }

            case 'css': {
              return '<span class="material-symbols-rounded">css</span>'
            }

            case 'json': {
              return '<span class="material-symbols-rounded">code</span>'
            }

            case 'md': {
              return '<span class="material-symbols-rounded">markdown</span>'
            }

            case 'txt':
            case 'text': {
              return '<span class="material-symbols-rounded">description</span>'
            }

            case 'png':
            case 'apng':
            case 'jpg':
            case 'jpeg':
            case 'gif': {
              return '<span class="material-symbols-rounded">image</span>'
            }

            default: {
              return '<span class="material-symbols-rounded">draft</span>'
            }
          }
        }
        const icon = fileStat.isDirectory() ? '<span class="material-symbols-rounded">folder</span>' : genIcon()

        element.innerHTML += `${icon} <span style="flex:1;">${file}</span><span class="material-symbols-rounded delete">delete_forever</span><span class="material-symbols-rounded rename">edit</span>`;
        (element.querySelector('.rename') as HTMLElement).onclick = async () => {
          const value = (prompt('Rename') as string)
          if (value !== null || value !== undefined) {
            await window.fs.rename(dir + seperator + file, dir + seperator + value)
            await setDir(dir)
          }
        }
        (element.querySelector('.delete') as HTMLElement).onclick = async () => {
          if (fileStat.isDirectory()) {
            await window.fs.rmdir(dir + seperator + file)
          } else {
            await window.fs.unlink(dir + seperator + file)
          }
          await setDir(dir)
        }
        element.ondblclick = async () => {
          if (fileStat.isDirectory()) {
            await setDir(dir + seperator + file)
          } else {
            await window.flow.openApp('flow.editor', { path: dir + seperator + file })
          }
        }

        win.content.querySelector('.files')?.appendChild(element)
      }
    }

    await setDir('/home')

    return win
  }
}