/**
 * Tauri API Service
 * Handles communication between frontend and Tauri backend
 */

import { invoke } from '@tauri-apps/api/core'

// Types for video processing
export interface VideoProcessRequest {
  input_path: string
  output_path: string
  operation: string
  parameters: Record<string, any>
}

export interface AudioAnalysisRequest {
  file_path: string
  analysis_type: string
}

export interface AIVideoRequest {
  image_path: string
  prompt: string
  duration: string
  model_type: string
  output_path?: string
  timeout?: number
}

export interface BatchAIVideoRequest {
  image_folder: string
  prompts: string[]
  output_folder: string
  duration: string
  model_type: string
  timeout?: number
}

export interface ProjectInfo {
  id: string
  name: string
  path: string
  created_at: string
  modified_at: string
  video_tracks: VideoTrack[]
  audio_tracks: AudioTrack[]
  timeline: {
    duration: number
    zoom: number
    position: number
  }
}

export interface VideoTrack {
  id: string
  name: string
  file_path: string
  start_time: number
  duration: number
}

export interface AudioTrack {
  id: string
  name: string
  file_path: string
  start_time: number
  duration: number
  volume: number
}

// Tauri command wrappers
export class TauriService {
  /**
   * Test connection to backend
   */
  static async greet(name: string): Promise<string> {
    try {
      return await invoke('greet', { name })
    } catch (error) {
      console.error('Failed to greet:', error)
      throw error
    }
  }

  /**
   * Process video with specified operation
   */
  static async processVideo(request: VideoProcessRequest): Promise<any> {
    try {
      const result = await invoke('process_video', { request })
      return JSON.parse(result as string)
    } catch (error) {
      console.error('Failed to process video:', error)
      throw error
    }
  }

  /**
   * Analyze audio file
   */
  static async analyzeAudio(request: AudioAnalysisRequest): Promise<any> {
    try {
      const result = await invoke('analyze_audio', { request })
      return JSON.parse(result as string)
    } catch (error) {
      console.error('Failed to analyze audio:', error)
      throw error
    }
  }

  /**
   * Get project information
   */
  static async getProjectInfo(projectPath: string): Promise<ProjectInfo> {
    try {
      return await invoke('get_project_info', { projectPath })
    } catch (error) {
      console.error('Failed to get project info:', error)
      throw error
    }
  }

  /**
   * Save project
   */
  static async saveProject(projectInfo: ProjectInfo): Promise<string> {
    try {
      return await invoke('save_project', { projectInfo })
    } catch (error) {
      console.error('Failed to save project:', error)
      throw error
    }
  }

  /**
   * Load project
   */
  static async loadProject(projectPath: string): Promise<ProjectInfo> {
    try {
      return await invoke('load_project', { projectPath })
    } catch (error) {
      console.error('Failed to load project:', error)
      throw error
    }
  }
}

// Video processing operations
export class VideoService {
  /**
   * Trim video to specified duration
   */
  static async trimVideo(
    inputPath: string,
    outputPath: string,
    startTime: number,
    endTime: number
  ): Promise<any> {
    return TauriService.processVideo({
      input_path: inputPath,
      output_path: outputPath,
      operation: 'trim',
      parameters: { start_time: startTime, end_time: endTime }
    })
  }

  /**
   * Resize video to specified dimensions
   */
  static async resizeVideo(
    inputPath: string,
    outputPath: string,
    width?: number,
    height?: number
  ): Promise<any> {
    return TauriService.processVideo({
      input_path: inputPath,
      output_path: outputPath,
      operation: 'resize',
      parameters: { width, height }
    })
  }

  /**
   * Crop video to specified region
   */
  static async cropVideo(
    inputPath: string,
    outputPath: string,
    x1: number,
    y1: number,
    x2: number,
    y2: number
  ): Promise<any> {
    return TauriService.processVideo({
      input_path: inputPath,
      output_path: outputPath,
      operation: 'crop',
      parameters: { x1, y1, x2, y2 }
    })
  }

  /**
   * Adjust video brightness
   */
  static async adjustBrightness(
    inputPath: string,
    outputPath: string,
    factor: number
  ): Promise<any> {
    return TauriService.processVideo({
      input_path: inputPath,
      output_path: outputPath,
      operation: 'adjust_brightness',
      parameters: { factor }
    })
  }

  /**
   * Adjust video contrast
   */
  static async adjustContrast(
    inputPath: string,
    outputPath: string,
    factor: number
  ): Promise<any> {
    return TauriService.processVideo({
      input_path: inputPath,
      output_path: outputPath,
      operation: 'adjust_contrast',
      parameters: { factor }
    })
  }

  /**
   * Add text overlay to video
   */
  static async addText(
    inputPath: string,
    outputPath: string,
    text: string,
    options: {
      fontsize?: number
      color?: string
      position?: [string, string]
      duration?: number
    } = {}
  ): Promise<any> {
    return TauriService.processVideo({
      input_path: inputPath,
      output_path: outputPath,
      operation: 'add_text',
      parameters: { text, ...options }
    })
  }

  /**
   * Merge multiple videos
   */
  static async mergeVideos(
    videoPaths: string[],
    outputPath: string
  ): Promise<any> {
    return TauriService.processVideo({
      input_path: '', // Not used for merge
      output_path: outputPath,
      operation: 'merge',
      parameters: { video_paths: videoPaths }
    })
  }
}

// Audio processing operations
export class AudioService {
  /**
   * Analyze rhythm and beat tracking
   */
  static async analyzeRhythm(filePath: string): Promise<any> {
    return TauriService.analyzeAudio({
      file_path: filePath,
      analysis_type: 'rhythm'
    })
  }

  /**
   * Analyze spectral features
   */
  static async analyzeSpectral(filePath: string): Promise<any> {
    return TauriService.analyzeAudio({
      file_path: filePath,
      analysis_type: 'spectral'
    })
  }

  /**
   * Analyze tempo
   */
  static async analyzeTempo(filePath: string): Promise<any> {
    return TauriService.analyzeAudio({
      file_path: filePath,
      analysis_type: 'tempo'
    })
  }

  /**
   * Analyze pitch
   */
  static async analyzePitch(filePath: string): Promise<any> {
    return TauriService.analyzeAudio({
      file_path: filePath,
      analysis_type: 'pitch'
    })
  }

  /**
   * Analyze energy
   */
  static async analyzeEnergy(filePath: string): Promise<any> {
    return TauriService.analyzeAudio({
      file_path: filePath,
      analysis_type: 'energy'
    })
  }

  /**
   * Analyze MFCC features
   */
  static async analyzeMFCC(filePath: string): Promise<any> {
    return TauriService.analyzeAudio({
      file_path: filePath,
      analysis_type: 'mfcc'
    })
  }
}

// Project management operations
export class ProjectService {
  /**
   * Create new project
   */
  static async createProject(name: string, description: string = ''): Promise<ProjectInfo> {
    // This would typically call a Python script to create the project
    // For now, we'll create a basic project structure
    const projectInfo: ProjectInfo = {
      id: crypto.randomUUID(),
      name,
      path: `/projects/${name}`,
      created_at: new Date().toISOString(),
      modified_at: new Date().toISOString(),
      video_tracks: [],
      audio_tracks: [],
      timeline: {
        duration: 0,
        zoom: 1,
        position: 0
      }
    }

    await TauriService.saveProject(projectInfo)
    return projectInfo
  }

  /**
   * Load existing project
   */
  static async loadProject(projectPath: string): Promise<ProjectInfo> {
    return TauriService.loadProject(projectPath)
  }

  /**
   * Save project
   */
  static async saveProject(projectInfo: ProjectInfo): Promise<void> {
    await TauriService.saveProject(projectInfo)
  }
}

// AI Video generation operations
export class AIVideoService {
  /**
   * Generate video from single image
   */
  static async generateVideo(request: AIVideoRequest): Promise<any> {
    try {
      const result = await invoke('generate_ai_video', { request })
      return JSON.parse(result as string)
    } catch (error) {
      console.error('Failed to generate AI video:', error)
      throw error
    }
  }

  /**
   * Batch generate videos from multiple images
   */
  static async batchGenerateVideos(request: BatchAIVideoRequest): Promise<any> {
    try {
      const result = await invoke('batch_generate_ai_videos', { request })
      return JSON.parse(result as string)
    } catch (error) {
      console.error('Failed to batch generate AI videos:', error)
      throw error
    }
  }
}