preload.js

const { contextBridge, ipcRenderer } = require('electron');

// Expose protected methods to renderer
contextBridge.exposeInMainWorld('electronAPI', {
    // Listening toggle from hotkey
    onToggleListening: (callback) => {
        ipcRenderer.on('toggle-listening', callback);
    },

    // Get desktop sources for audio capture
    getSources: () => ipcRenderer.invoke('get-sources'),

    // Permission checks
    checkScreenPermission: () => ipcRenderer.invoke('check-screen-permission'),
    requestScreenPermission: () => ipcRenderer.invoke('request-screen-permission'),

    // Window controls
    minimizeWindow: () => ipcRenderer.send('window-minimize'),
    closeWindow: () => ipcRenderer.send('window-close'),
    maximizeWindow: () => ipcRenderer.send('window-maximize'),
    setOpacity: (opacity) => ipcRenderer.send('set-opacity', opacity),

    // Home ↔ Overlay context passing
    launchOverlay: (data) => ipcRenderer.invoke('launch-overlay', data),
    onReceiveContext: (callback) => {
        ipcRenderer.on('receive-context', (event, data) => callback(data));
    },
    showHome: () => ipcRenderer.send('show-home'),

    // Code Viewer
    openCodeViewer: (snippets) => ipcRenderer.invoke('open-code-viewer', snippets),
    openCodeWindow: (snippet) => ipcRenderer.invoke('open-code-window', snippet),
    onCodeSnippets: (callback) => {
        ipcRenderer.on('receive-snippets', (event, data) => callback(data));
    },
    onSingleCode: (callback) => {
        ipcRenderer.on('receive-single-code', (event, data) => callback(data));
    },

    // Download transcript
    saveTranscript: (content, defaultName) => ipcRenderer.invoke('save-transcript', content, defaultName),

    // Code Compare
    openCodeCompare: (data) => ipcRenderer.invoke('open-code-compare', data),
    onCompareData: (callback) => {
        ipcRenderer.on('receive-compare-data', (event, data) => callback(data));
    },

    // File parsing (PDF + DOCX via main process)
    parseFile: (arrayBuffer, fileName) => ipcRenderer.invoke('parse-file', arrayBuffer, fileName),

    // API keys — loaded from .env in main process, served securely here
    getApiKeys: () => ipcRenderer.invoke('get-api-keys')
});