module-micropython-webrepl/index.html at master · edrys-labs/module-micropython-webrepl · GitHub

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<!DOCTYPE html>
<html>
  <head>
    <title>MicroPython WebREPL</title>

    <script src="https://edrys-labs.github.io/module/edrys.js"></script>
    <meta
      name="description"
      content="Allows to connect to a webrepl via a WebSocket.<br/> Form more information, visit: <a href='https://github.com/edrys-labs/module-micropython-webrepl' target='_blank'>https://github.com/edrys-labs/module-micropython-webrepl</a>"
    />
    <meta name="show-in" content="station" />
    <meta
      name="module-config"
      content="{
        'stationConfig': {
          'websocket': {
            'type': string,
            'hint': 'URL of the WebSocket server',
          },
          'execute': {
            'type': string,
            'hint': 'Message to listen for (default: execute)',
          },
          'self_charge_alvik': {
            'type': boolean,
            'hint': 'Run self charge script when all users leave the station',
          }
        }
      }"
    />

    <script
      defer
      src="https://edrys-labs.github.io/module/vendor/alpine.min.js"
    ></script>

    <link
      rel="stylesheet"
      href="https://edrys-labs.github.io/module/vendor/water.min.css"
    />

    <style>
      body {
        min-width: calc(100% - 20px);
        overflow: hidden;
      }

      /* Student-specific layout */
      body.student-view #term {
        height: calc(100vh - 120px) !important;
      }

      body.student-view #url {
        display: none;
      }

      body.student-view .file-box:not(.connection-box) {
        display: none;
      }

      body.student-view .connection-box {
        flex: 1 1 100%;
        text-align: center;
      }

      input {
        display: inline;
      }

      input[type='text'],
      input[type='url'] {
        width: calc(100% - 20px);
      }

      #file-boxes {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 10px;
        justify-content: space-between;
        width: 100%;
        align-items: stretch;
      }

      .file-box {
        margin-bottom: 15px;
        flex: 1 1 calc(25% - 20px);
        box-sizing: border-box;
        border: 2px black solid;
        padding: 5px;
        padding-top: 10px;
      }

      .box-title {
        font-weight: bold;
        margin-bottom: 8px;
        padding: 4px 8px;
        background: linear-gradient(135deg, #013b4e, #1a5d78);
        color: white;
        border-radius: 4px;
        font-size: 13px;
        text-align: center;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        margin: -5px -5px 10px -5px;
        border-bottom: 2px solid #001f2b;
      }

      #term {
        display: block;
        min-width: 100%;
        background-color: black;
        border: 1px solid;
        overflow-y: auto;
      }

      #file-status {
        transition: all 0.3s ease;
      }

      #file-status.highlight {
        background-color: #4caf5066;
        padding: 4px 8px;
        transform: scale(1.05);
        box-shadow: 0 2px 8px rgba(76, 175, 80, 0.4);
      }
    </style>

    <script src="term.js"></script>
    <script src="FileSaver.js"></script>
  </head>
  <body>
    <div id="file-boxes">
      <form class="file-box connection-box">
        <div class="box-title">WebSocket Connection</div>

        <input type="url" name="webrepl_url" id="url" value="" />
        <input
          type="submit"
          id="button"
          value="Connect"
          onclick="button_click(); return false;"
        />
      </form>
      <div class="file-box" id="put-file-list">
        <div class="box-title">Send a file</div>
        <input type="file" id="put-file-select" />

        <input
          type="button"
          value="Send to device"
          id="put-file-button"
          onclick="put_file(); return false;"
        />
      </div>

      <div class="file-box">
        <div class="box-title">Get a file</div>
        <input
          type="text"
          name="get_filename"
          id="get_filename"
          value=""
          size="13"
        />
        <input
          type="button"
          value="Get from device"
          onclick="get_file(); return false;"
        />
      </div>
      <div class="file-box">
        <div class="box-title">File status</div>
        <span id="file-status">(file operation status)</span>
      </div>
      <div class="file-box">
        <div class="box-title">Self Charge</div>
        <input
          type="button"
          value="Run Self Charge"
          onclick="runSelfCharge(); return false;"
        />
      </div>
    </div>
    <div id="term"></div>
    <div>
      <i
        >Terminal widget should be focused (text cursor visible) to accept
        input. Click on it if not. To paste, press Ctrl+A, then Ctrl+V</i
      >
    </div>
  </body>

  <script>
    const urlInput = document.getElementById('url')
    const fileStatus = document.getElementById('file-status')
    const connectionButton = document.getElementById('button')
    var execute = 'execute'

    let lastUsersCount = 0

    Edrys.onMessage((message) => {
      if (message.subject === execute && Edrys.role === 'station') {
        //console.log('execute', message.body)

        // Upload code as temporary file and execute
        let code = message.body
        let filename = 'temp_code.py'

        // Convert string to binary data for file upload
        let encoder = new TextEncoder()
        let data = encoder.encode(code)

        // Upload the file first
        mimic_put_file_select(filename, data)

        // Wait for upload to complete, then execute
        setTimeout(() => {
          window.term.emit('data', `exec(open('${filename}').read())\r`)
          // Clean up temporary file
          setTimeout(() => {
            window.term.emit('data', `import os; os.remove('${filename}')\r`)
          }, 1000)
        }, 2000)
      }

      if (message.subject === 'run_self_charge' && Edrys.role === 'station') {
        window.term.emit('data', `exec(open('self_charge.py').read())\r`)
      }

      if (message.from === Edrys.liveUser.name) {
        return
      }

      if (message.subject === 'write' && Edrys.role !== 'station') {
        term.write(message.body)
      }

      if (message.subject === 'data' && Edrys.role === 'station') {
        window.termOnData(message.body)
      }

      if (message.subject === 'put_file' && Edrys.role === 'station') {
        console.log('Put file', message.body)
        mimic_put_file_select(message.body.filename, message.body.data)
      }

      if (message.subject === 'get_file' && Edrys.role === 'station') {
        console.log('Get file', message.body)
        get_file(message.body)
      }

      if (message.subject === 'got_file') {
        //fileStatus.innerHTML = message.body
        console.warn('Got file', message.body)
      }
    }, (promiscuous = true))

    Edrys.onReady(() => {
      if (Edrys.role === 'student') {
        document.body.classList.add('student-view')

        // Force terminal resize for student view
        setTimeout(() => {
          if (window.term) {
            var size = calculate_size(window)
            window.term.resize(size[0], size[1])
          }
        }, 100)
      }

      if (Edrys.role !== 'station') {
        const clickEvent = button_click
        button_click = () => {
          const connect = Edrys.getState('connect', 'Value')
          Edrys.getState('connect', 'Value', !connect)

          clickEvent()
        }

        if (!Edrys.getState('connect', 'Value')) {
          connect('')
        }
      }

      if (Edrys.role === 'station') {
        execute = Edrys.module.stationConfig.execute || 'execute'
      }

      Edrys.updateState(() => {
        if (Edrys.getState('url', 'Value') == undefined) {
          Edrys.getState(
            'url',
            'Value',
            Edrys.module.stationConfig.websocket || 'ws://'
          )
        }

        if (Edrys.getState('file_status', 'Value') == undefined) {
          Edrys.getState('file_status', 'Value', fileStatus.innerHTML)
        }

        if (Edrys.getState('connect', 'Value') == undefined) {
          Edrys.getState(
            'connect',
            'Value',
            connectionButton.value === 'Connect'
          )
        } else if (Edrys.getState('connect', 'Value') === false) {
          connect('')
        }

        urlInput.value = Edrys.getState('url', 'Value')

        urlInput.oninput = (e) => {
          Edrys.getState('url', 'Value', e.target.value)
        }

        fileStatus.innerHTML = Edrys.getState('file_status', 'Value')
        const observer = new MutationObserver((mutationsList) => {
          for (const mutation of mutationsList) {
            if (mutation.type === 'childList') {
              const state = Edrys.getState('file_status', 'Value')
              if (state !== fileStatus.innerHTML) {
                Edrys.getState('file_status', 'Value', fileStatus.innerHTML)
              }
            }
          }
        })

        observer.observe(fileStatus, { childList: true, subtree: true })

        connectionButton.value =
          Edrys.getState('connect', 'Value') === true ? 'Connect' : 'Disconnect'
        const observer2 = new MutationObserver((mutationsList) => {
          for (const mutation of mutationsList) {
            if (mutation.attributeName === 'value') {
              const state = Edrys.getState('connect', 'Value')
              if (state !== (connectionButton.value === 'Connect')) {
                Edrys.getState(
                  'connect',
                  'Value',
                  connectionButton.value === 'Connect'
                )
              }
            }
          }
        })

        // Start observing the button for attribute changes
        observer2.observe(connectionButton, { attributes: true })
      })


      if (Edrys.module?.stationConfig?.self_charge_alvik) {
        checkUsersInStation();

        setInterval(checkUsersInStation, 5000);
      }
    })

    Edrys.onUpdate(() => {
      console.warn('Update')

      urlInput.value = Edrys.liveRoom.url || ''
      fileStatus.innerHTML = Edrys.liveRoom.file_status || ''

      const connect = Edrys.liveRoom.connect === true ? 'Connect' : 'Disconnect'
      if (Edrys.role === 'station') {
        console.log('Role is station', connectionButton.value, connect)
        if (connectionButton.value !== connect) {
          console.log('Connecting')
          button_click()
        }
      } else {
        connectionButton.value = connect
      }

      console.dir(Edrys.liveRoom)
    })

    function runSelfCharge() {
      if (Edrys.role === 'station') {
        window.term.emit('data', `exec(open('self_charge.py').read())\r`)
      } else {
        Edrys.sendMessage('run_self_charge', '')
      }
    }

    // When no users are in the station, run self charging script
    function checkUsersInStation() {
      if (Edrys.role !== 'station') {
        return;
      }

      if (!Edrys.liveClass?.users) {
        return;
      }

      const currentStationUsers = Object.values(Edrys.liveClass.users).filter(
        (user) => {
          return (
            user &&
            user.displayName &&
            user.room &&
            !user.displayName.startsWith("Station") &&
            user.room.startsWith("Station")
          );
        }
      );

      const currentCount = currentStationUsers.length;

      if (currentCount === 0 && lastUsersCount > 0) {
        if (window.ws && window.ws.readyState === WebSocket.OPEN) {
          console.log('No users in station, running self charge script');
          runSelfCharge();
        }
      }

      lastUsersCount = currentCount;
    };
  </script>
  <script src="webrepl.js"></script>
</html>