svelte-jsoneditor.html

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>Svelte JSON Editor</title>
    <style>
      .save-btn {
        border: 1px solid #ccc;
        color: #333;
        border-radius: 4px;
        background: #e0e0e0;
        padding: 6px 16px;
        position: fixed;
        right: 1rem;
        bottom: 1rem;
        cursor: pointer;
        transition: background 0.2s;
        display: none;
      }

      .save-btn:hover {
        background: #d6d6d6;
      }

      .save-btn.active {
        display: block;
      }

      .jse-menu .jse-button[title*="table mode"] {
        display: none !important;
      }

      #jsoneditor {
        width: 100%;
        height: 100vh;
        box-sizing: border-box;
      }
    </style>
  </head>
  <body>
    <div id="jsoneditor"></div>

    <button class="save-btn" id="saveButton">Save</button>

    <script type="module">
      import { createJSONEditor } from "/vanilla-jsoneditor/standalone.js"

      let editor // Ensure `editor` remains globally accessible

      function initializeEditor(json, mode, initialExpand) {
        const saveButton = document.getElementById("saveButton")

        if (mode === "table") mode = "tree"
        if (mode === "code") mode = "text"

        if (mode === "tree") saveButton.classList.add("active")

        const container = document.getElementById("jsoneditor")

        let content = {
          mode,
          json
        }

        editor = createJSONEditor({
          target: container,
          props: {
            content
          }
        })

        if (initialExpand) {
          setTimeout(() => {
            editor.expand([], () => true)
          }, 1)
        }
      }

      async function fetchText(url) {
        try {
          const response = await fetch(url)
          if (!response.ok)
            throw new Error(`Error: ${response.status} ${response.statusText}`)
          return await response.text()
        } catch (error) {
          console.error("Error fetching:", error)
          alert("Failed to load mode. Check the console for details.")
          return {}
        }
      }

      async function fetchJSON(url) {
        try {
          const response = await fetch(url)
          if (!response.ok)
            throw new Error(`Error: ${response.status} ${response.statusText}`)
          return await response.json()
        } catch (error) {
          console.error("Error fetching JSON data:", error)
          alert("Failed to load JSON data. Check the console for details.")
          return {}
        }
      }

      async function saveJSON() {
        if (!confirm("Please confirm saving.")) return

        try {
          const updatedJson = editor.get().json
          const response = await fetch("/saveJSON", {
            method: "PUT",
            headers: { "Content-Type": "application/json" },
            body: JSON.stringify(updatedJson)
          })

          if (!response.ok)
            throw new Error(`Error: ${response.status} ${response.statusText}`)

          const result = await response.json()
          console.log("Save successful:", result)
          alert("JSON saved successfully!")
        } catch (error) {
          console.error("Error saving JSON:", error)
          alert("Failed to save JSON. Check the console for details.")
        }
      }

      document.getElementById("saveButton").addEventListener("click", saveJSON)
      ;(async function setup() {
        const mode = (await fetchText("/getMode")) || "tree"
        const initialExpandText =
          (await fetchText("/getInitialExpand")) || "true"
        const initialExpand = initialExpandText === "true"
        const json = await fetchJSON("/getJSON")
        initializeEditor(json, mode, initialExpand)
      })()
    </script>
  </body>
</html>