// Shared functionality across the app
class PixelAlchemyApp {
    constructor() {
        this.historyStack = [];
        this.currentHistoryIndex = -1;
    }

    init() {
        console.log('PixelAlchemy Studio initialized');
        
        // Initialize components
        this.setupExport();
        this.setupTools();
    }

    setupExport() {
        const exportBtn = document.getElementById('export-btn');
        if (exportBtn) {
            exportBtn.addEventListener('click', () => {
                const canvas = document.getElementById('editor-canvas');
                if (canvas) {
                    const link = document.createElement('a');
                    link.download = 'pixelalchemy-edit.png';
                    link.href = canvas.toDataURL('image/png');
                    link.click();
                }
            });
        }
    }

    setupTools() {
        document.querySelectorAll('.tool-btn').forEach(btn => {
            btn.addEventListener('click', function() {
                const toolName = this.querySelector('span')?.textContent;
                if (toolName) {
                    console.log(`Selected tool: ${toolName}`);
                    // In a real app, this would activate the specific tool
                }
            });
        });
    }

    // Simulated AI functions
    async generateDiffusionImage(prompt, strength, creativity, seed) {
        if (!prompt) return { success: false, message: "Prompt is required" };
        
        console.log(`Generating image with prompt: ${prompt}`);
        // This would call the actual Seedance 4.0 API
        return new Promise(resolve => {
            setTimeout(() => {
                resolve({
                    success: true,
                    image: null, // Would be the generated image data
                    message: "Successfully generated image"
                });
            }, 1500);
        });
    }

    async processChatEdit(command, imageData) {
        if (!command) return { success: false, message: "Command is required" };
        
        console.log(`Processing chat command: ${command}`);
        // This would call an AI editing API
        return new Promise(resolve => {
            setTimeout(() => {
                resolve({
                    success: true,
                    image: null, // Would be the modified image
                    message: `Applied: ${command}`
                });
            }, 1000);
        });
    }
}

// Initialize the app when DOM is ready
document.addEventListener('DOMContentLoaded', () => {
    const app = new PixelAlchemyApp();
    app.init();
});