"""
Thumbnail Generator Agent

Generates eye-catching thumbnails for videos and content with
optimal design elements, text placement, and platform specifications.
"""

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


class ThumbnailGeneratorAgent(BaseAgent):
    """
    Generates video and content thumbnails.

    Features:
    - Platform-specific sizing
    - Text overlay optimization
    - Color psychology
    - Click-through optimization
    - A/B test variations
    - Brand consistency
    """

    def __init__(self):
        super().__init__(
            name='thumbnail-generator',
            description='Generate eye-catching video thumbnails',
            category='creative',
            version='1.0.0',
            tags=['thumbnail', 'video', 'design', 'youtube', 'engagement']
        )

    async def execute(self, params: Dict[str, Any]) -> Dict[str, Any]:
        """
        Generate thumbnail design.

        Args:
            params: {
                'video_title': str,
                'platform': 'youtube|instagram|facebook|tiktok',
                'style': 'bold|minimal|professional|playful|dramatic',
                'main_image': str,  # Path to main image
                'options': {
                    'include_text': bool,
                    'include_face': bool,
                    'brand_colors': List[str],
                    'emotion': 'excited|surprised|curious|serious',
                    'variations': int
                }
            }

        Returns:
            {
                'status': 'success|failed',
                'designs': List[Dict],
                'specifications': Dict,
                'best_practices': List[str],
                'ctr_predictions': Dict
            }
        """
        video_title = params.get('video_title')
        platform = params.get('platform', 'youtube')
        style = params.get('style', 'bold')
        main_image = params.get('main_image', '')
        options = params.get('options', {})
        variations = options.get('variations', 3)

        self.logger.info(
            f"Generating {platform} thumbnail for: {video_title}"
        )

        # Mock thumbnail design generation
        designs = [
            {
                'variation': 1,
                'layout': 'Left-heavy composition',
                'elements': {
                    'background': 'Gradient (brand colors)',
                    'main_image': 'Left 60% of frame',
                    'text': 'Right side, large bold font',
                    'accent': 'Arrow or highlight graphic'
                },
                'text_overlay': video_title[:30].upper(),
                'font': 'Impact, 72pt',
                'colors': ['#FF0000', '#FFFFFF', '#000000'],
                'estimated_ctr': '4.8%'
            },
            {
                'variation': 2,
                'layout': 'Center-focused with frame',
                'elements': {
                    'background': 'Blurred screenshot',
                    'main_image': 'Center, 70% of frame',
                    'text': 'Top and bottom, contrasting colors',
                    'accent': 'Frame border or glow effect'
                },
                'text_overlay': video_title[:25].upper(),
                'font': 'Montserrat Bold, 64pt',
                'colors': ['#00FF00', '#FFFF00', '#000000'],
                'estimated_ctr': '4.5%'
            },
            {
                'variation': 3,
                'layout': 'Split screen',
                'elements': {
                    'background': 'Two-tone split',
                    'main_image': 'Split between before/after or dual concept',
                    'text': 'Center divider or top banner',
                    'accent': 'VS text or comparison arrows'
                },
                'text_overlay': video_title[:20].upper(),
                'font': 'Bebas Neue, 80pt',
                'colors': ['#FF6B00', '#0099FF', '#FFFFFF'],
                'estimated_ctr': '5.2%'
            }
        ]

        platform_specs = {
            'youtube': {
                'resolution': '1280x720',
                'aspect_ratio': '16:9',
                'file_format': 'JPG or PNG',
                'max_file_size': '2MB',
                'safe_zone': 'Center 1280x720 (avoid corners)',
                'text_safe_area': '1120x560 (center area)'
            },
            'instagram': {
                'feed': {'resolution': '1080x1080', 'aspect_ratio': '1:1'},
                'reels': {'resolution': '1080x1920', 'aspect_ratio': '9:16'},
                'file_format': 'JPG or PNG',
                'max_file_size': '8MB'
            },
            'facebook': {
                'resolution': '1200x628',
                'aspect_ratio': '1.91:1',
                'file_format': 'JPG or PNG',
                'max_file_size': '8MB'
            },
            'tiktok': {
                'resolution': '1080x1920',
                'aspect_ratio': '9:16',
                'file_format': 'JPG or PNG',
                'max_file_size': '10MB'
            }
        }

        design_principles = {
            'rule_of_thirds': 'Place key elements at intersection points',
            'contrast': 'High contrast between text and background',
            'color_psychology': {
                'red': 'Excitement, urgency',
                'blue': 'Trust, professionalism',
                'yellow': 'Attention, optimism',
                'green': 'Growth, success',
                'purple': 'Creativity, luxury',
                'orange': 'Energy, enthusiasm'
            },
            'face_importance': 'Faces increase CTR by 30-40%',
            'emotion': 'Exaggerated expressions perform better',
            'text_guidelines': '3-6 words maximum, large and bold'
        }

        return {
            'status': 'success',
            'designs': designs[:variations],
            'specifications': platform_specs.get(platform, platform_specs['youtube']),
            'design_principles': design_principles,
            'text_suggestions': [
                video_title[:30].upper(),
                video_title.split()[0:3],  # First 3 words
                f"HOW TO {video_title[:20].upper()}",
                f"{video_title[:25].upper()}!",
                f"THE {video_title[:20].upper()} GUIDE"
            ],
            'color_palettes': [
                {
                    'name': 'High Energy',
                    'colors': ['#FF0000', '#FFFF00', '#000000'],
                    'use_case': 'Clickbait, exciting content'
                },
                {
                    'name': 'Professional',
                    'colors': ['#0066CC', '#FFFFFF', '#333333'],
                    'use_case': 'Educational, business content'
                },
                {
                    'name': 'Tech',
                    'colors': ['#00FFFF', '#FF00FF', '#000000'],
                    'use_case': 'Technology, gaming content'
                },
                {
                    'name': 'Natural',
                    'colors': ['#4CAF50', '#FFFFFF', '#795548'],
                    'use_case': 'Lifestyle, wellness content'
                }
            ],
            'best_practices': [
                'Use high-contrast colors for text readability',
                'Include human face with exaggerated emotion',
                'Keep text to 3-6 words maximum',
                'Use bold, sans-serif fonts (Impact, Bebas, Montserrat)',
                'Ensure mobile readability (thumbnails are small)',
                'Add visual intrigue elements (arrows, circles, highlights)',
                'Maintain brand consistency across all thumbnails',
                'Use bright, saturated colors to stand out',
                'Avoid clutter - simple designs perform better',
                'Test multiple variations and track CTR'
            ],
            'common_mistakes': [
                'Too much text (unreadable on mobile)',
                'Low contrast (text blends with background)',
                'Using small faces or no faces',
                'Generic stock photos',
                'Misleading clickbait (hurts long-term)',
                'Inconsistent branding',
                'Poor image quality',
                'Ignoring platform specifications'
            ],
            'elements_to_include': {
                'faces': 'Close-up with clear expression',
                'text': '3-6 words, huge font, high contrast',
                'graphics': 'Arrows, circles, highlights for emphasis',
                'branding': 'Small logo in corner',
                'emotion': 'Surprise, excitement, curiosity',
                'context': 'Visual hint about video content'
            },
            'a_b_test_variables': [
                'With face vs without face',
                'Different text variations',
                'Color scheme variations',
                'Layout orientation',
                'Text vs no text',
                'Different emotional expressions'
            ],
            'ctr_predictions': {
                'variation_1': '4.8%',
                'variation_2': '4.5%',
                'variation_3': '5.2%',
                'average': '4.8%',
                'improvement_potential': '+1.2% with optimization'
            },
            'tools_recommended': [
                'Canva (beginner-friendly)',
                'Photoshop (professional)',
                'Figma (collaborative)',
                'GIMP (free alternative)',
                'Thumbnail Blaster (YouTube specific)'
            ]
        }

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

        return True
