"""
Unit tests for models module.
"""
import unittest
import json
from datetime import datetime

import sys
from pathlib import Path
sys.path.insert(0, str(Path(__file__).parent.parent / 'src'))

from models import Content, ContentType, ContentStatus, ContentAnalysis
from content_chunker import Chunk


class TestContentType(unittest.TestCase):
    """Test ContentType enum."""
    
    def test_content_type_values(self):
        self.assertEqual(ContentType.VIDEO.value, 'video')
        self.assertEqual(ContentType.ARTICLE.value, 'article')
        self.assertEqual(ContentType.AUDIO.value, 'audio')


class TestContentStatus(unittest.TestCase):
    """Test ContentStatus enum."""
    
    def test_content_status_values(self):
        self.assertEqual(ContentStatus.NEW.value, 'new')
        self.assertEqual(ContentStatus.SCANNING.value, 'scanning')
        self.assertEqual(ContentStatus.SCANNED.value, 'scanned')
        self.assertEqual(ContentStatus.ANALYZING.value, 'analyzing')
        self.assertEqual(ContentStatus.GENERATED.value, 'completed')
        self.assertEqual(ContentStatus.FAILED.value, 'failed')
        self.assertEqual(ContentStatus.SKIPPED.value, 'skipped')


class TestContent(unittest.TestCase):
    """Test Content model."""
    
    def test_content_creation(self):
        """Test basic content creation."""
        content = Content(
            id="test_001",
            source="bilibili",
            title="Test Video",
            url="https://bilibili.com/video/test"
        )
        self.assertEqual(content.id, "test_001")
        self.assertEqual(content.source, "bilibili")
        self.assertEqual(content.title, "Test Video")
        self.assertEqual(content.url, "https://bilibili.com/video/test")
        self.assertEqual(content.content_type, ContentType.VIDEO)
        self.assertEqual(content.status, ContentStatus.NEW)
    
    def test_content_with_all_fields(self):
        """Test content creation with all fields."""
        analysis = ContentAnalysis(
            one_liner="Test summary",
            summary="Detailed summary",
            key_points=["Point 1", "Point 2"],
            tags=["test", "video"],
            quality_score=85
        )
        
        content = Content(
            id="test_002",
            source="youtube",
            title="Full Test Video",
            url="https://youtube.com/watch?v=test",
            author="Test Author",
            duration=3600,
            content_type=ContentType.VIDEO,
            status=ContentStatus.GENERATED,
            tags=["python", "tutorial"],
            transcript="Test transcript",
            analysis=analysis
        )
        
        self.assertEqual(content.author, "Test Author")
        self.assertEqual(content.duration, 3600)
        self.assertEqual(content.tags, ["python", "tutorial"])
        self.assertEqual(content.analysis.quality_score, 85)
        self.assertEqual(content.analysis.key_points, ["Point 1", "Point 2"])
    
    def test_content_to_dict(self):
        """Test serialization to dictionary."""
        content = Content(
            id="test_003",
            source="zhihu",
            title="Test Article",
            url="https://zhihu.com/question/test"
        )
        
        data = content.to_dict()
        
        self.assertEqual(data['id'], "test_003")
        self.assertEqual(data['source'], "zhihu")
        self.assertEqual(data['content_type'], 'video')
        self.assertEqual(data['status'], 'new')
    
    def test_content_from_dict(self):
        """Test deserialization from dictionary."""
        data = {
            'id': 'test_004',
            'source': 'bilibili',
            'title': 'From Dict',
            'url': 'https://example.com',
            'content_type': 'article',
            'status': 'scanned',
            'tags': ['test', 'article'],
            'duration': 600
        }
        
        content = Content.from_dict(data)
        
        self.assertEqual(content.id, 'test_004')
        self.assertEqual(content.content_type, ContentType.ARTICLE)
        self.assertEqual(content.status, ContentStatus.SCANNED)
        self.assertEqual(content.duration, 600)
    
    def test_content_json_roundtrip(self):
        """Test JSON serialization roundtrip."""
        original = Content(
            id="test_005",
            source="bilibili",
            title="JSON Test",
            url="https://example.com",
            tags=["test", "json"]
        )
        
        json_str = original.to_json()
        restored = Content.from_json(json_str)
        
        self.assertEqual(restored.id, original.id)
        self.assertEqual(restored.title, original.title)
        self.assertEqual(restored.tags, original.tags)
        self.assertEqual(restored.content_type, original.content_type)


class TestChunk(unittest.TestCase):
    """Test Chunk model."""
    
    def test_chunk_creation(self):
        chunk = Chunk(
            index=0,
            start_time=0.0,
            end_time=300.0,
            text="Test transcript"
        )
        
        self.assertEqual(chunk.index, 0)
        self.assertEqual(chunk.start_time, 0.0)
        self.assertEqual(chunk.end_time, 300.0)


class TestContentAnalysis(unittest.TestCase):
    """Test ContentAnalysis model."""
    
    def test_analysis_defaults(self):
        analysis = ContentAnalysis()
        
        self.assertEqual(analysis.one_liner, "")
        self.assertEqual(analysis.quality_score, 0)
        self.assertEqual(analysis.key_points, [])
        self.assertEqual(analysis.tags, [])
    
    def test_analysis_full(self):
        analysis = ContentAnalysis(
            one_liner="Quick summary",
            summary="Full summary",
            key_points=["Point A", "Point B", "Point C"],
            tags=["python", "tutorial", "advanced"],
            quality_score=90,
            prerequisites=["Basic Python"],
            outline=[{"title": "Part 1", "summary": "Intro"}],
            pitfalls=["Don't forget X"],
            practice_advice=["Try Y first"]
        )
        
        self.assertEqual(analysis.quality_score, 90)
        self.assertEqual(len(analysis.key_points), 3)
        self.assertEqual(len(analysis.outline), 1)


if __name__ == '__main__':
    unittest.main()