Schema-driven UI and worker dispatch by converter id

src/core/settings.js

@@ -1,23 +1,32 @@
 const fs = require('fs')
 const path = require('path')
 
+const SETTINGS_VERSION = 2
+
+// Keys that were stored at the root in v1 and belong to mif-to-xlsx options now.
+const LEGACY_MIF_TO_XLSX_KEYS = [
+  'recursive',
+  'paintRows',
+  'skipBlack',
+  'combineIntoOneWorkbook',
+  'combinedName',
+  'includeCsv',
+  'includeColorColumn',
+  'colorColumnName',
+  'freezeHeader',
+  'autofilter',
+]
+
 function getDefaultSettings() {
   return {
+    version: SETTINGS_VERSION,
     language: 'en',
     inputMode: 'folder',
     inputFolder: '',
     outputFolder: '',
     selectedFiles: [],
-    recursive: true,
-    skipBlack: true,
-    paintRows: true,
-    combineIntoOneWorkbook: false,
-    combinedName: '',
-    includeCsv: false,
-    includeColorColumn: true,
-    colorColumnName: '',
-    freezeHeader: true,
-    autofilter: true,
+    converterId: 'mif-to-xlsx',
+    converterOptions: {},
   }
 }
 
@@ -29,19 +38,63 @@ function loadSettings(settingsPath) {
 
     const raw = fs.readFileSync(settingsPath, 'utf8')
     const parsed = JSON.parse(raw)
-    return { ...getDefaultSettings(), ...parsed }
+    return migrate(parsed)
   } catch (error) {
     return getDefaultSettings()
   }
 }
 
+function migrate(stored) {
+  const base = getDefaultSettings()
+  if (!stored || typeof stored !== 'object') {
+    return base
+  }
+
+  // Already on the latest format.
+  if (stored.version === SETTINGS_VERSION) {
+    return {
+      ...base,
+      ...stored,
+      converterOptions: { ...stored.converterOptions },
+    }
+  }
+
+  // v1: flat option keys at the root, no converterId, no converterOptions.
+  const carryOver = {
+    language: stored.language,
+    inputMode: stored.inputMode,
+    inputFolder: stored.inputFolder,
+    outputFolder: stored.outputFolder,
+    selectedFiles: stored.selectedFiles,
+  }
+
+  const mifToXlsxOptions = {}
+  for (const key of LEGACY_MIF_TO_XLSX_KEYS) {
+    if (Object.prototype.hasOwnProperty.call(stored, key)) {
+      mifToXlsxOptions[key] = stored[key]
+    }
+  }
+
+  return {
+    ...base,
+    ...Object.fromEntries(Object.entries(carryOver).filter(([, v]) => v !== undefined)),
+    converterId: 'mif-to-xlsx',
+    converterOptions: Object.keys(mifToXlsxOptions).length
+      ? { 'mif-to-xlsx': mifToXlsxOptions }
+      : {},
+  }
+}
+
 function saveSettings(settingsPath, settings) {
   fs.mkdirSync(path.dirname(settingsPath), { recursive: true })
-  fs.writeFileSync(settingsPath, JSON.stringify(settings, null, 2), 'utf8')
+  const payload = { ...settings, version: SETTINGS_VERSION }
+  fs.writeFileSync(settingsPath, JSON.stringify(payload, null, 2), 'utf8')
 }
 
 module.exports = {
   getDefaultSettings,
   loadSettings,
   saveSettings,
+  migrate,
+  SETTINGS_VERSION,
 }

src/main/main.js

@@ -2,6 +2,7 @@ const { app, BrowserWindow, dialog, ipcMain, shell } = require('electron')
 const path = require('path')
 const { Worker } = require('worker_threads')
 const { loadSettings, saveSettings } = require('../core/settings')
+const converters = require('../core/converters')
 
 let mainWindow
 
@@ -62,13 +63,11 @@ ipcMain.handle('dialog:selectOutputFolder', async () => {
   return result.filePaths[0]
 })
 
-ipcMain.handle('dialog:selectFiles', async () => {
+ipcMain.handle('dialog:selectFiles', async (event, options) => {
+  const filters = buildFileFilters(options && options.extensions)
   const result = await dialog.showOpenDialog(mainWindow, {
     properties: ['openFile', 'multiSelections'],
-    filters: [
-      { name: 'MapInfo files', extensions: ['mif', 'mid'] },
-      { name: 'All files', extensions: ['*'] },
-    ],
+    filters,
   })
 
   if (result.canceled || !result.filePaths.length) {
@@ -78,6 +77,40 @@ ipcMain.handle('dialog:selectFiles', async () => {
   return result.filePaths
 })
 
+function buildFileFilters(extensions) {
+  const clean = Array.isArray(extensions)
+    ? extensions.map((e) => String(e).replace(/^\./, '')).filter(Boolean)
+    : ['mif', 'mid']
+  return [
+    { name: clean.join('/').toUpperCase() || 'Files', extensions: clean },
+    { name: 'All files', extensions: ['*'] },
+  ]
+}
+
+ipcMain.handle('converters:list', async () => {
+  return converters.list().map(serializeConverter)
+})
+
+function serializeConverter(c) {
+  return {
+    id: c.id,
+    name: c.name,
+    description: c.description || '',
+    inputs: { extensions: [...c.inputs.extensions], type: c.inputs.type },
+    outputs: { extensions: [...c.outputs.extensions], type: c.outputs.type },
+    options: c.options.map((o) => ({
+      key: o.key,
+      type: o.type,
+      label: o.label || o.key,
+      description: o.description || '',
+      default: o.default,
+      values: o.values ? [...o.values] : undefined,
+      min: o.min,
+      max: o.max,
+    })),
+  }
+}
+
 ipcMain.handle('settings:load', async () => {
   return loadSettings(getSettingsPath())
 })

src/main/preload.js

@@ -3,7 +3,8 @@ const { contextBridge, ipcRenderer, webUtils } = require('electron')
 contextBridge.exposeInMainWorld('api', {
   selectInputFolder: () => ipcRenderer.invoke('dialog:selectInputFolder'),
   selectOutputFolder: () => ipcRenderer.invoke('dialog:selectOutputFolder'),
-  selectFiles: () => ipcRenderer.invoke('dialog:selectFiles'),
+  selectFiles: (options) => ipcRenderer.invoke('dialog:selectFiles', options),
+  listConverters: () => ipcRenderer.invoke('converters:list'),
   loadSettings: () => ipcRenderer.invoke('settings:load'),
   saveSettings: (settings) => ipcRenderer.invoke('settings:save', settings),
   startConversion: (config) => ipcRenderer.invoke('convert:start', config),

src/main/worker.js

@@ -1,14 +1,42 @@
 const { parentPort, workerData } = require('worker_threads')
-const { runConversion } = require('../core/convert')
+const converters = require('../core/converters')
 
 const listeners = {
   log: (message) => parentPort.postMessage({ type: 'log', message }),
   progress: (payload) => parentPort.postMessage({ type: 'progress', payload }),
 }
 
-runConversion(workerData.config, listeners)
+async function run() {
+  const { config } = workerData
+  const { converterId, inputs, output, options } = config
+  const converter = converters.get(converterId)
+
+  if (!converter) {
+    throw new Error(`Unknown converter: ${converterId || '<unset>'}`)
+  }
+
+  const validated = converters.validateOptions(converter, options || {})
+  if (validated.errors.length) {
+    throw new Error(`Invalid options:\n  ${validated.errors.join('\n  ')}`)
+  }
+
+  return converter.run(
+    { inputs: inputs || [], output: output || '', options: validated.merged },
+    listeners,
+  )
+}
+
+run()
   .then((result) => {
-    parentPort.postMessage({ type: 'done', result })
+    parentPort.postMessage({
+      type: 'done',
+      result: {
+        outputs: result.outputs || [],
+        processed: result.stats?.processed || 0,
+        skipped: result.stats?.skipped || 0,
+        errors: result.stats?.errors || [],
+      },
+    })
   })
   .catch((error) => {
     parentPort.postMessage({

src/renderer/i18n.js

@@ -1,7 +1,10 @@
 ;(function () {
   const DICT = {
     en: {
-      'app.subtitle': 'Convert MIF/MID into XLSX with optional row fill from region color.',
+      'app.subtitle': 'MapInfo data toolkit. Pick a converter and run it.',
+      'section.converter': 'Converter',
+      'field.converter': 'Conversion direction',
+      'hint.optionsEmpty': 'This converter has no options.',
       'section.source': 'Source',
       'mode.folder': 'Folder',
       'mode.files': 'Files',
@@ -34,7 +37,7 @@
       'status.done': 'Done. Processed: {n}',
       'status.doneErrors': 'Done with errors. Processed: {n}',
       'section.log': 'Log',
-      'drop.hint': 'Drop MIF/MID files or a folder here',
+      'drop.hint': 'Drop files or a folder here',
       'field.language': 'Language',
       'field.combinedName': 'Combined workbook file name',
       'placeholder.combinedName': 'mapinfo-converted.xlsx',
@@ -43,7 +46,10 @@
       'progress.of': '{done} of {total}',
     },
     ru: {
-      'app.subtitle': 'Конвертация MIF/MID в XLSX с опциональной заливкой строк по цвету региона.',
+      'app.subtitle': 'Набор инструментов для данных MapInfo. Выберите конвертер и запустите.',
+      'section.converter': 'Конвертер',
+      'field.converter': 'Направление конвертации',
+      'hint.optionsEmpty': 'У этого конвертера нет параметров.',
       'section.source': 'Источник',
       'mode.folder': 'Папка',
       'mode.files': 'Файлы',
@@ -76,7 +82,7 @@
       'status.done': 'Готово. Обработано: {n}',
       'status.doneErrors': 'Завершено с ошибками. Обработано: {n}',
       'section.log': 'Журнал',
-      'drop.hint': 'Перетащите сюда файлы MIF/MID или папку',
+      'drop.hint': 'Перетащите сюда файлы или папку',
       'field.language': 'Язык',
       'field.combinedName': 'Имя объединённой книги',
       'placeholder.combinedName': 'mapinfo-converted.xlsx',
@@ -85,7 +91,10 @@
       'progress.of': '{done} из {total}',
     },
     kk: {
-      'app.subtitle': 'MIF/MID файлдарын XLSX пішіміне түрлендіру, жол фонын аймақ түсімен бояу мүмкіндігі.',
+      'app.subtitle': 'MapInfo деректерімен жұмыс істеуге арналған құралдар жинағы. Конвертерді таңдап, іске қосыңыз.',
+      'section.converter': 'Конвертер',
+      'field.converter': 'Түрлендіру бағыты',
+      'hint.optionsEmpty': 'Бұл конвертерде параметрлер жоқ.',
       'section.source': 'Дереккөз',
       'mode.folder': 'Қалта',
       'mode.files': 'Файлдар',
@@ -118,7 +127,7 @@
       'status.done': 'Дайын. Өңделді: {n}',
       'status.doneErrors': 'Қателермен аяқталды. Өңделді: {n}',
       'section.log': 'Журнал',
-      'drop.hint': 'MIF/MID файлдарын немесе қалтаны осы жерге тастаңыз',
+      'drop.hint': 'Файлдарды немесе қалтаны осы жерге тастаңыз',
       'field.language': 'Тіл',
       'field.combinedName': 'Біріктірілген кітап атауы',
       'placeholder.combinedName': 'mapinfo-converted.xlsx',

src/renderer/index.html

@@ -12,7 +12,7 @@
       <header class="hero">
         <div>
           <h1>MifKit</h1>
-          <p data-i18n="app.subtitle">Convert MIF/MID into XLSX with optional row fill from region color.</p>
+          <p data-i18n="app.subtitle">MapInfo data toolkit. Pick a converter and run it.</p>
         </div>
         <div class="hero-actions">
           <select
@@ -29,6 +29,13 @@ <h1>MifKit</h1>
       </header>
 
       <main class="grid">
+        <section class="card">
+          <h2 data-i18n="section.converter">Converter</h2>
+          <label class="field-label" for="converterSelect" data-i18n="field.converter">Conversion direction</label>
+          <select id="converterSelect" class="converter-select"></select>
+          <p id="converterDescription" class="hint"></p>
+        </section>
+
         <section class="card drop-zone" id="sourceCard">
           <h2 data-i18n="section.source">Source</h2>
 
@@ -49,10 +56,6 @@ <h2 data-i18n="section.source">Source</h2>
               <input id="inputFolder" type="text" readonly data-i18n-placeholder="placeholder.inputFolder" />
               <button id="selectInputFolderButton" data-i18n="btn.browse">Browse</button>
             </div>
-            <label class="checkbox">
-              <input id="recursive" type="checkbox" checked />
-              <span data-i18n="opt.recursive">Scan subfolders</span>
-            </label>
           </div>
 
           <div id="filesModeBlock" class="stack hidden">
@@ -64,7 +67,7 @@ <h2 data-i18n="section.source">Source</h2>
             <div id="selectedFilesList" class="file-list empty" data-i18n="list.noFiles">No files selected</div>
           </div>
 
-          <div class="drop-hint" data-i18n="drop.hint">Drop MIF/MID files or a folder here</div>
+          <div id="dropHint" class="drop-hint" data-i18n="drop.hint">Drop files or a folder here</div>
         </section>
 
         <section class="card">
@@ -79,44 +82,8 @@ <h2 data-i18n="section.output">Output</h2>
 
         <section class="card">
           <h2 data-i18n="section.options">Options</h2>
-          <div class="options-grid">
-            <label class="checkbox">
-              <input id="paintRows" type="checkbox" checked />
-              <span data-i18n="opt.paintRows">Fill row background in Excel</span>
-            </label>
-            <label class="checkbox">
-              <input id="skipBlack" type="checkbox" checked />
-              <span data-i18n="opt.skipBlack">Skip black color (#000000)</span>
-            </label>
-            <label class="checkbox">
-              <input id="combineIntoOneWorkbook" type="checkbox" />
-              <span data-i18n="opt.combine">Combine all files into one workbook</span>
-            </label>
-            <label class="checkbox">
-              <input id="includeCsv" type="checkbox" />
-              <span data-i18n="opt.csv">Also export CSV</span>
-            </label>
-            <label class="checkbox">
-              <input id="includeColorColumn" type="checkbox" checked />
-              <span data-i18n="opt.colorColumn">Add color column</span>
-            </label>
-            <label class="checkbox">
-              <input id="freezeHeader" type="checkbox" checked />
-              <span data-i18n="opt.freeze">Freeze header row</span>
-            </label>
-            <label class="checkbox">
-              <input id="autofilter" type="checkbox" checked />
-              <span data-i18n="opt.autofilter">Add autofilter</span>
-            </label>
-          </div>
-          <div id="combinedNameBlock" class="combined-name-block hidden">
-            <label class="field-label" for="combinedName" data-i18n="field.combinedName">Combined workbook file name</label>
-            <input id="combinedName" type="text" data-i18n-placeholder="placeholder.combinedName" />
-          </div>
-          <div id="colorColumnNameBlock" class="combined-name-block">
-            <label class="field-label" for="colorColumnName" data-i18n="field.colorColumnName">Color column name</label>
-            <input id="colorColumnName" type="text" data-i18n-placeholder="placeholder.colorColumnName" />
-          </div>
+          <div id="optionsContainer" class="options-grid"></div>
+          <p id="optionsEmpty" class="hint hidden" data-i18n="hint.optionsEmpty">This converter has no options.</p>
         </section>
 
         <section class="card actions-card">