"""Tests for CAD-Documenter pipeline."""

import pytest
from pathlib import Path


class TestImports:
    """Test that all modules can be imported."""

    def test_version(self):
        from cad_documenter import __version__
        assert __version__ == "0.1.0"

    def test_cli_import(self):
        from cad_documenter.cli import main
        assert callable(main)

    def test_pipeline_import(self):
        from cad_documenter.pipeline import DocumentationPipeline
        assert DocumentationPipeline is not None

    def test_video_processor_import(self):
        from cad_documenter.video_processor import VideoProcessor, FrameInfo
        assert VideoProcessor is not None
        assert FrameInfo is not None

    def test_audio_analyzer_import(self):
        from cad_documenter.audio_analyzer import AudioAnalyzer, Transcript, TranscriptSegment
        assert AudioAnalyzer is not None
        assert Transcript is not None

    def test_vision_analyzer_import(self):
        from cad_documenter.vision_analyzer import (
            VisionAnalyzer, Component, ComponentAnalysis, AtomizerHints
        )
        assert VisionAnalyzer is not None
        assert Component is not None
        assert AtomizerHints is not None

    def test_doc_generator_import(self):
        from cad_documenter.doc_generator import DocGenerator
        assert DocGenerator is not None

    def test_config_import(self):
        from cad_documenter.config import (
            Config, load_config, APIConfig, ProcessingConfig, OutputConfig
        )
        assert Config is not None
        assert callable(load_config)


class TestTranscript:
    """Test Transcript dataclass functionality."""

    def test_transcript_creation(self):
        from cad_documenter.audio_analyzer import Transcript, TranscriptSegment

        segments = [
            TranscriptSegment(start=0.0, end=5.0, text="This is the main bracket"),
            TranscriptSegment(start=5.0, end=10.0, text="It holds the motor"),
            TranscriptSegment(start=10.0, end=15.0, text="Made of aluminum"),
        ]

        transcript = Transcript(
            segments=segments,
            full_text="This is the main bracket. It holds the motor. Made of aluminum."
        )

        assert len(transcript.segments) == 3
        assert "bracket" in transcript.full_text

    def test_get_text_at(self):
        from cad_documenter.audio_analyzer import Transcript, TranscriptSegment

        segments = [
            TranscriptSegment(start=0.0, end=5.0, text="This is the main bracket"),
            TranscriptSegment(start=5.0, end=10.0, text="It holds the motor"),
            TranscriptSegment(start=10.0, end=15.0, text="Made of aluminum"),
        ]

        transcript = Transcript(
            segments=segments,
            full_text="This is the main bracket. It holds the motor. Made of aluminum."
        )

        # Test getting text at specific timestamp
        text = transcript.get_text_at(7.0, window=3.0)
        assert "holds the motor" in text
        assert "main bracket" in text

    def test_get_segment_at(self):
        from cad_documenter.audio_analyzer import Transcript, TranscriptSegment

        segments = [
            TranscriptSegment(start=0.0, end=5.0, text="First segment"),
            TranscriptSegment(start=5.0, end=10.0, text="Second segment"),
        ]

        transcript = Transcript(segments=segments, full_text="")

        seg = transcript.get_segment_at(3.0)
        assert seg is not None
        assert seg.text == "First segment"

        seg = transcript.get_segment_at(7.0)
        assert seg is not None
        assert seg.text == "Second segment"

    def test_search(self):
        from cad_documenter.audio_analyzer import Transcript, TranscriptSegment

        segments = [
            TranscriptSegment(start=0.0, end=5.0, text="The bracket is aluminum"),
            TranscriptSegment(start=5.0, end=10.0, text="The motor is steel"),
        ]

        transcript = Transcript(segments=segments, full_text="")

        results = transcript.search("aluminum")
        assert len(results) == 1
        assert results[0][0].text == "The bracket is aluminum"


class TestComponent:
    """Test Component dataclass."""

    def test_component_creation(self):
        from cad_documenter.vision_analyzer import Component

        component = Component(
            name="Main Bracket",
            description="Primary structural member",
            function="Holds the motor",
            material="Aluminum 6061-T6",
            features=["4x M6 holes", "Fillet radii"],
        )

        assert component.name == "Main Bracket"
        assert len(component.features) == 2
        assert component.material == "Aluminum 6061-T6"

    def test_component_defaults(self):
        from cad_documenter.vision_analyzer import Component

        component = Component(name="Test", description="Test component")

        assert component.function == ""
        assert component.material == ""
        assert component.features == []
        assert component.confidence == 0.0


class TestAtomizerHints:
    """Test AtomizerHints dataclass."""

    def test_hints_creation(self):
        from cad_documenter.vision_analyzer import AtomizerHints

        hints = AtomizerHints(
            objectives=[{"name": "mass", "direction": "minimize"}],
            constraints=[{"type": "envelope", "value": "200mm"}],
            parameters=["thickness", "fillet_radius"],
            critical_regions=[{"feature": "fillet", "concern": "stress_concentration"}],
        )

        assert len(hints.objectives) == 1
        assert hints.objectives[0]["name"] == "mass"
        assert "thickness" in hints.parameters


class TestConfig:
    """Test configuration loading."""

    def test_default_config(self):
        from cad_documenter.config import Config

        config = Config()

        assert config.api.provider == "openai"
        assert config.processing.whisper_model == "base"
        assert config.output.include_bom is True

    def test_load_config_defaults(self):
        from cad_documenter.config import load_config

        # Should return defaults when no config file exists
        config = load_config(Path("/nonexistent/config.toml"))

        assert config.api.provider == "openai"
        assert config.processing.frame_interval == 2.0


class TestDocGenerator:
    """Test documentation generation."""

    def test_generate_creates_file(self, tmp_path):
        from cad_documenter.doc_generator import DocGenerator
        from cad_documenter.vision_analyzer import ComponentAnalysis, Component

        generator = DocGenerator(tmp_path)

        analysis = ComponentAnalysis(
            assembly_name="Test Assembly",
            summary="This is a test assembly.",
            components=[
                Component(
                    name="Test Part",
                    description="A test part",
                    material="Steel",
                    function="Testing",
                )
            ],
        )

        doc_path = generator.generate(analysis)

        assert doc_path.exists()
        content = doc_path.read_text()
        assert "Test Assembly" in content
        assert "Test Part" in content

    def test_generate_with_bom(self, tmp_path):
        from cad_documenter.doc_generator import DocGenerator
        from cad_documenter.vision_analyzer import ComponentAnalysis, Component

        generator = DocGenerator(tmp_path)

        analysis = ComponentAnalysis(
            assembly_name="Test Assembly",
            summary="Test",
            components=[
                Component(name="Part A", description="First", material="Aluminum"),
                Component(name="Part B", description="Second", material="Steel"),
            ],
        )

        doc_path = generator.generate(analysis, bom=True)

        content = doc_path.read_text()
        assert "Bill of Materials" in content
        assert "Part A" in content
        assert "Part B" in content

        # Check BOM CSV was created
        csv_path = tmp_path / "bom.csv"
        assert csv_path.exists()

    def test_atomizer_hints_json(self, tmp_path):
        from cad_documenter.doc_generator import DocGenerator
        from cad_documenter.vision_analyzer import ComponentAnalysis, Component, AtomizerHints
        import json

        generator = DocGenerator(tmp_path)

        analysis = ComponentAnalysis(
            assembly_name="Test Assembly",
            summary="Test",
            components=[
                Component(name="Bracket", description="Main bracket", material="Aluminum"),
            ],
            atomizer_hints=AtomizerHints(
                objectives=[{"name": "mass", "direction": "minimize"}],
                parameters=["thickness"],
            ),
        )

        hints_path = generator.generate_atomizer_hints(analysis)

        assert hints_path.exists()
        hints = json.loads(hints_path.read_text())
        assert hints["assembly_name"] == "Test Assembly"
        assert len(hints["optimization_hints"]["objectives"]) == 1


# Integration tests (require actual video files)
class TestIntegration:
    """Integration tests - skipped without test videos."""

    @pytest.mark.skip(reason="Requires test video file")
    def test_full_pipeline(self, tmp_path):
        from cad_documenter.pipeline import DocumentationPipeline

        video_path = Path("tests/fixtures/sample.mp4")
        pipeline = DocumentationPipeline(video_path, tmp_path)

        results = pipeline.run_full_pipeline()

        assert results["documentation"].exists()