"""Integration tests for CLI report commands.

Tests the report commands to ensure they properly wire to the Report Generator.
"""

import json
import csv
from pathlib import Path
from datetime import datetime, timezone
from click.testing import CliRunner
from vlm.cli import main


class TestCLIReports:
    """Test CLI report commands."""
    
    def test_report_inventory_csv(self, tmp_path):
        """Test inventory report generation in CSV format."""
        # Create test inventory CSV
        inventory_file = tmp_path / "inventory.csv"
        with open(inventory_file, 'w', encoding='utf-8') as f:
            f.write("# Generated: 2024-01-01T00:00:00\n")
            f.write("# Library Root: /test/library\n")
            f.write("path,filename,size_bytes,modified_timestamp,category,resolution,codec,duration_seconds,bitrate_kbps\n")
            f.write("/test/library/movie/Movie1.mkv,Movie1.mkv,1000000,2024-01-01T00:00:00,movie,1920x1080,h264,7200,5000\n")
            f.write("/test/library/series/Show.S01E01.mkv,Show.S01E01.mkv,800000,2024-01-01T00:00:00,series,1280x720,h264,2700,3000\n")
        
        # Run command
        runner = CliRunner()
        result = runner.invoke(main, ['report', 'inventory', '--input', str(inventory_file), '--format', 'csv'])
        
        # Verify success
        assert result.exit_code == 0
        assert "Loaded 2 files" in result.output
        assert "Movie1.mkv" in result.output
        assert "Show.S01E01.mkv" in result.output
    
    def test_report_inventory_json(self, tmp_path):
        """Test inventory report generation in JSON format."""
        # Create test inventory CSV
        inventory_file = tmp_path / "inventory.csv"
        with open(inventory_file, 'w', encoding='utf-8') as f:
            f.write("# Generated: 2024-01-01T00:00:00\n")
            f.write("# Library Root: /test/library\n")
            f.write("path,filename,size_bytes,modified_timestamp,category,resolution,codec,duration_seconds,bitrate_kbps\n")
            f.write("/test/library/movie/Movie1.mkv,Movie1.mkv,1000000,2024-01-01T00:00:00,movie,,,\n")
        
        # Run command with output file
        output_file = tmp_path / "inventory_report.json"
        runner = CliRunner()
        result = runner.invoke(main, [
            'report', 'inventory',
            '--input', str(inventory_file),
            '--format', 'json',
            '--output', str(output_file)
        ])
        
        # Verify success
        assert result.exit_code == 0
        assert output_file.exists()
        
        # Verify JSON content
        with open(output_file, 'r') as f:
            data = json.load(f)
        
        assert data['metadata']['file_count'] == 1
        assert len(data['files']) == 1
        assert data['files'][0]['filename'] == 'Movie1.mkv'
    
    def test_report_completeness_text(self, tmp_path):
        """Test completeness report generation in text format."""
        # Create test analysis JSON
        analysis_file = tmp_path / "analysis.json"
        analysis_data = {
            "metadata": {
                "generated": "2024-01-01T00:00:00",
                "source_identities": "identities.json",
                "total_movies": 0,
                "total_series": 3
            },
            "completeness": [
                {
                    "series_title": "Breaking Bad",
                    "season": 1,
                    "episodes_found": [1, 2, 4],
                    "episodes_missing": [3]
                }
            ],
            "duplicates": []
        }
        
        with open(analysis_file, 'w') as f:
            json.dump(analysis_data, f)
        
        # Run command
        runner = CliRunner()
        result = runner.invoke(main, [
            'report', 'completeness',
            '--input', str(analysis_file),
            '--format', 'text'
        ])
        
        # Verify success
        assert result.exit_code == 0
        assert "Loaded 1 series with gaps" in result.output
        assert "Breaking Bad" in result.output
        assert "Episodes missing:" in result.output
    
    def test_report_completeness_json(self, tmp_path):
        """Test completeness report generation in JSON format."""
        # Create test analysis JSON
        analysis_file = tmp_path / "analysis.json"
        analysis_data = {
            "metadata": {},
            "completeness": [
                {
                    "series_title": "The Wire",
                    "season": 1,
                    "episodes_found": [1, 3],
                    "episodes_missing": [2]
                }
            ],
            "duplicates": []
        }
        
        with open(analysis_file, 'w') as f:
            json.dump(analysis_data, f)
        
        # Run command with output file
        output_file = tmp_path / "completeness_report.json"
        runner = CliRunner()
        result = runner.invoke(main, [
            'report', 'completeness',
            '--input', str(analysis_file),
            '--format', 'json',
            '--output', str(output_file)
        ])
        
        # Verify success
        assert result.exit_code == 0
        assert output_file.exists()
        
        # Verify JSON content
        with open(output_file, 'r') as f:
            data = json.load(f)
        
        assert data['metadata']['series_count'] == 1
        assert len(data['series']) == 1
        assert data['series'][0]['title'] == 'The Wire'
    
    def test_report_duplicates_text(self, tmp_path):
        """Test duplicate report generation in text format."""
        # Create test analysis JSON
        analysis_file = tmp_path / "analysis.json"
        analysis_data = {
            "metadata": {},
            "completeness": [],
            "duplicates": [
                {
                    "identity": {
                        "type": "movie",
                        "title": "The Matrix",
                        "year": 1999
                    },
                    "files": [
                        "/movies/The.Matrix.1999.1080p.mkv",
                        "/movies/The.Matrix.1999.720p.mkv"
                    ],
                    "quality_comparison": [
                        {
                            "filename": "The.Matrix.1999.1080p.mkv",
                            "path": "/movies/The.Matrix.1999.1080p.mkv",
                            "size_bytes": 2000000000,
                            "resolution": "1920x1080"
                        },
                        {
                            "filename": "The.Matrix.1999.720p.mkv",
                            "path": "/movies/The.Matrix.1999.720p.mkv",
                            "size_bytes": 1000000000,
                            "resolution": "1280x720"
                        }
                    ]
                }
            ]
        }
        
        with open(analysis_file, 'w') as f:
            json.dump(analysis_data, f)
        
        # Run command
        runner = CliRunner()
        result = runner.invoke(main, [
            'report', 'duplicates',
            '--input', str(analysis_file),
            '--format', 'text'
        ])
        
        # Verify success
        assert result.exit_code == 0
        assert "Loaded 1 duplicate groups" in result.output
        assert "The Matrix (1999)" in result.output
        assert "1920x1080" in result.output
    
    def test_report_duplicates_json(self, tmp_path):
        """Test duplicate report generation in JSON format."""
        # Create test analysis JSON
        analysis_file = tmp_path / "analysis.json"
        analysis_data = {
            "metadata": {},
            "completeness": [],
            "duplicates": [
                {
                    "identity": {
                        "type": "series",
                        "title": "Breaking Bad",
                        "season": 1,
                        "episodes": [1]
                    },
                    "files": [
                        "/series/Breaking.Bad.S01E01.1080p.mkv",
                        "/series/Breaking.Bad.S01E01.720p.mkv"
                    ],
                    "quality_comparison": [
                        {
                            "filename": "Breaking.Bad.S01E01.1080p.mkv",
                            "path": "/series/Breaking.Bad.S01E01.1080p.mkv",
                            "size_bytes": 1500000000
                        },
                        {
                            "filename": "Breaking.Bad.S01E01.720p.mkv",
                            "path": "/series/Breaking.Bad.S01E01.720p.mkv",
                            "size_bytes": 800000000
                        }
                    ]
                }
            ]
        }
        
        with open(analysis_file, 'w') as f:
            json.dump(analysis_data, f)
        
        # Run command with output file
        output_file = tmp_path / "duplicates_report.json"
        runner = CliRunner()
        result = runner.invoke(main, [
            'report', 'duplicates',
            '--input', str(analysis_file),
            '--format', 'json',
            '--output', str(output_file)
        ])
        
        # Verify success
        assert result.exit_code == 0
        assert output_file.exists()
        
        # Verify JSON content
        with open(output_file, 'r') as f:
            data = json.load(f)
        
        assert data['metadata']['duplicate_groups'] == 1
        assert len(data['duplicates']) == 1
    
    def test_report_summary(self, tmp_path):
        """Test summary report generation."""
        # Create test inventory CSV
        inventory_file = tmp_path / "inventory.csv"
        with open(inventory_file, 'w', encoding='utf-8') as f:
            f.write("# Generated: 2024-01-01T00:00:00\n")
            f.write("# Library Root: /test/library\n")
            f.write("path,filename,size_bytes,modified_timestamp,category,resolution,codec,duration_seconds,bitrate_kbps\n")
            f.write("/test/library/movie/Movie1.mkv,Movie1.mkv,2000000000,2024-01-01T00:00:00,movie,,,\n")
            f.write("/test/library/movie/Movie2.mkv,Movie2.mkv,1500000000,2024-01-01T00:00:00,movie,,,\n")
            f.write("/test/library/series/Show.S01E01.mkv,Show.S01E01.mkv,1000000000,2024-01-01T00:00:00,series,,,\n")
            f.write("/test/library/anime/Anime1.mkv,Anime1.mkv,800000000,2024-01-01T00:00:00,anime,,,\n")
        
        # Run command
        runner = CliRunner()
        result = runner.invoke(main, [
            'report', 'summary',
            '--input', str(inventory_file)
        ])
        
        # Verify success
        assert result.exit_code == 0
        assert "Loaded 4 files" in result.output
        assert "Total Files: 4" in result.output
        assert "Movie:" in result.output
        assert "Series:" in result.output
        assert "Anime:" in result.output
    
    def test_report_summary_with_output_file(self, tmp_path):
        """Test summary report generation with output file."""
        # Create test inventory CSV
        inventory_file = tmp_path / "inventory.csv"
        with open(inventory_file, 'w', encoding='utf-8') as f:
            f.write("# Generated: 2024-01-01T00:00:00\n")
            f.write("# Library Root: /test/library\n")
            f.write("path,filename,size_bytes,modified_timestamp,category,resolution,codec,duration_seconds,bitrate_kbps\n")
            f.write("/test/library/movie/Movie1.mkv,Movie1.mkv,1000000,2024-01-01T00:00:00,movie,,,\n")
        
        # Run command with output file
        output_file = tmp_path / "summary_report.txt"
        runner = CliRunner()
        result = runner.invoke(main, [
            'report', 'summary',
            '--input', str(inventory_file),
            '--output', str(output_file)
        ])
        
        # Verify success
        assert result.exit_code == 0
        assert output_file.exists()
        
        # Verify file content
        with open(output_file, 'r') as f:
            content = f.read()
        
        assert "Total Files: 1" in content
        assert "Movie:" in content
    
    def test_report_inventory_missing_file(self, tmp_path):
        """Test inventory report with missing input file."""
        runner = CliRunner()
        result = runner.invoke(main, [
            'report', 'inventory',
            '--input', str(tmp_path / "nonexistent.csv")
        ])
        
        # Verify runtime missing-file handling
        assert result.exit_code != 0
        assert "Error: Input file not found:" in result.output
    
    def test_report_completeness_missing_file(self, tmp_path):
        """Test completeness report with missing input file."""
        runner = CliRunner()
        result = runner.invoke(main, [
            'report', 'completeness',
            '--input', str(tmp_path / "nonexistent.json")
        ])
        
        # Verify runtime missing-file handling
        assert result.exit_code != 0
        assert "Error: Input file not found:" in result.output