"""
Music Metadata Manager Agent

Manages and optimizes music file metadata including ID3 tags,
artwork, and distribution platform requirements.
"""

from typing import Any, Dict, List
from agents.base import BaseAgent


class MusicMetadataManagerAgent(BaseAgent):
    """
    Manages music file metadata.

    Features:
    - ID3 tag management
    - Album artwork optimization
    - Platform-specific metadata
    - Batch processing
    - Quality validation
    - Distribution preparation
    """

    def __init__(self):
        super().__init__(
            name='music-metadata-manager',
            description='Manage music file metadata and tags',
            category='creative',
            version='1.0.0',
            tags=['music', 'metadata', 'id3', 'audio', 'distribution']
        )

    async def execute(self, params: Dict[str, Any]) -> Dict[str, Any]:
        """
        Manage music metadata.

        Args:
            params: {
                'audio_file': str,
                'metadata': Dict[str, str],
                'platform': 'spotify|apple_music|youtube_music|soundcloud|all',
                'options': {
                    'normalize_format': bool,
                    'add_artwork': bool,
                    'validate': bool,
                    'batch_mode': bool
                }
            }

        Returns:
            {
                'status': 'success|failed',
                'updated_metadata': Dict,
                'validation_results': Dict,
                'platform_compliance': Dict,
                'recommendations': List[str]
            }
        """
        audio_file = params.get('audio_file')
        metadata = params.get('metadata', {})
        platform = params.get('platform', 'all')
        options = params.get('options', {})

        self.logger.info(
            f"Managing metadata for: {audio_file}"
        )

        # Mock metadata management
        updated_metadata = {
            'title': metadata.get('title', 'Untitled'),
            'artist': metadata.get('artist', 'Unknown Artist'),
            'album': metadata.get('album', 'Single'),
            'album_artist': metadata.get('album_artist', metadata.get('artist', 'Unknown')),
            'year': metadata.get('year', '2025'),
            'genre': metadata.get('genre', 'Electronic'),
            'track_number': metadata.get('track_number', '1'),
            'total_tracks': metadata.get('total_tracks', '1'),
            'disc_number': metadata.get('disc_number', '1'),
            'total_discs': metadata.get('total_discs', '1'),
            'composer': metadata.get('composer', ''),
            'publisher': metadata.get('publisher', ''),
            'copyright': metadata.get('copyright', f'© 2025 {metadata.get("artist", "Unknown")}'),
            'isrc': metadata.get('isrc', ''),
            'upc': metadata.get('upc', ''),
            'explicit': metadata.get('explicit', 'false'),
            'language': metadata.get('language', 'eng'),
            'lyrics': metadata.get('lyrics', '')
        }

        validation_results = {
            'format': {
                'status': 'passed',
                'audio_format': 'MP3',
                'bitrate': '320 kbps',
                'sample_rate': '44.1 kHz',
                'channels': 'Stereo'
            },
            'metadata': {
                'status': 'passed',
                'required_fields': {
                    'title': 'present',
                    'artist': 'present',
                    'album': 'present'
                },
                'optional_fields': {
                    'year': 'present',
                    'genre': 'present',
                    'composer': 'missing',
                    'isrc': 'missing'
                }
            },
            'artwork': {
                'status': 'passed',
                'present': True,
                'dimensions': '3000x3000',
                'format': 'JPEG',
                'file_size': '2.4 MB',
                'aspect_ratio': '1:1'
            },
            'quality': {
                'status': 'passed',
                'loudness_lufs': '-14.0',
                'true_peak': '-1.0 dBTP',
                'dynamic_range': '8 dB'
            }
        }

        platform_requirements = {
            'spotify': {
                'audio_format': 'MP3 (320 kbps) or FLAC',
                'artwork': '3000x3000 to 6000x6000 px, JPEG/PNG',
                'required_metadata': ['title', 'artist', 'album', 'isrc'],
                'loudness': '-14 LUFS',
                'lyrics': 'Supported (synced and static)',
                'explicit_content': 'Must be tagged if applicable'
            },
            'apple_music': {
                'audio_format': 'AAC 256 kbps or ALAC',
                'artwork': '3000x3000 px minimum, JPEG/PNG',
                'required_metadata': ['title', 'artist', 'album', 'upc', 'isrc'],
                'loudness': '-16 LUFS',
                'lyrics': 'Supported (time-synced preferred)',
                'explicit_content': 'Required tagging'
            },
            'youtube_music': {
                'audio_format': 'AAC or MP3',
                'artwork': '1080x1080 px minimum, JPEG/PNG',
                'required_metadata': ['title', 'artist', 'album'],
                'loudness': '-14 LUFS',
                'lyrics': 'Supported',
                'content_id': 'Automatic detection'
            },
            'soundcloud': {
                'audio_format': 'MP3, FLAC, WAV',
                'artwork': '800x800 px minimum (2400x2400 recommended)',
                'required_metadata': ['title', 'artist'],
                'loudness': 'No specific requirement',
                'lyrics': 'Not supported',
                'tags': 'Up to 3 genre tags'
            }
        }

        platform_compliance = {}
        if platform == 'all':
            for plat in ['spotify', 'apple_music', 'youtube_music', 'soundcloud']:
                platform_compliance[plat] = {
                    'compliant': True,
                    'missing_fields': [],
                    'warnings': []
                }
        else:
            platform_compliance[platform] = {
                'compliant': True,
                'missing_fields': [] if metadata.get('isrc') else ['isrc'],
                'warnings': [] if metadata.get('composer') else ['composer recommended']
            }

        return {
            'status': 'success',
            'audio_file': audio_file,
            'updated_metadata': updated_metadata,
            'validation_results': validation_results,
            'platform_requirements': platform_requirements,
            'platform_compliance': platform_compliance,
            'id3_tags': {
                'v2.3': 'Recommended for maximum compatibility',
                'v2.4': 'Supports more features but less compatible',
                'recommended_version': 'ID3v2.3'
            },
            'artwork_specs': {
                'minimum_size': '1400x1400 px',
                'recommended_size': '3000x3000 px',
                'maximum_size': '6000x6000 px',
                'aspect_ratio': '1:1 (square)',
                'format': 'JPEG or PNG',
                'color_space': 'RGB',
                'max_file_size': '10 MB'
            },
            'recommendations': [
                'Add ISRC code for royalty tracking',
                'Include composer credits if applicable',
                'Add lyrics for better discoverability',
                'Ensure artwork meets minimum 3000x3000 px',
                'Set explicit content flag if needed',
                'Add genre tags for categorization',
                'Include publisher information',
                'Verify copyright year is current',
                'Add UPC for album releases',
                'Normalize loudness to -14 LUFS'
            ],
            'batch_processing': {
                'supported': True,
                'operations': [
                    'Bulk tag editing',
                    'Artwork embedding',
                    'Format conversion',
                    'Metadata normalization',
                    'Validation checks'
                ]
            },
            'export_formats': {
                'mp3': 'Universal compatibility, 320 kbps recommended',
                'flac': 'Lossless, preferred for distribution',
                'wav': 'Uncompressed, large file size',
                'aac': 'Good quality, smaller file size',
                'm4a': 'Apple ecosystem optimized'
            },
            'quality_checks': [
                {'check': 'Audio format', 'status': 'passed'},
                {'check': 'Bitrate', 'status': 'passed'},
                {'check': 'Sample rate', 'status': 'passed'},
                {'check': 'Metadata completeness', 'status': 'warning'},
                {'check': 'Artwork quality', 'status': 'passed'},
                {'check': 'Loudness normalization', 'status': 'passed'}
            ]
        }

    def validate_params(self, params: Dict[str, Any]) -> bool:
        """Validate music metadata parameters."""
        if 'audio_file' not in params:
            self.logger.error("Missing required field: audio_file")
            return False

        return True
