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"""Tests for sample room data module."""

import pytest
from pathlib import Path

from ui.samples import (
    SAMPLE_SCENARIOS,
    SAMPLE_SCENARIOS_BY_ID,
    SAMPLE_IMAGES_DIR,
    get_sample_choices,
    load_sample,
    load_sample_images,
    get_scenario_by_id,
)
from ui.state import SessionState
from ui.components import image_store


class TestSampleScenarios:
    """Test sample scenario definitions."""

    def test_four_scenarios_defined(self):
        """Verify exactly 4 sample scenarios are defined."""
        assert len(SAMPLE_SCENARIOS) == 4

    def test_scenario_ids_unique(self):
        """Verify all scenario IDs are unique."""
        ids = [s.id for s in SAMPLE_SCENARIOS]
        assert len(ids) == len(set(ids))

    def test_scenario_ids_expected(self):
        """Verify expected scenario IDs exist."""
        expected_ids = {"bar_dining", "bar_area", "kitchen", "factory"}
        actual_ids = set(SAMPLE_SCENARIOS_BY_ID.keys())
        assert actual_ids == expected_ids

    def test_all_scenarios_have_required_fields(self):
        """Verify all scenarios have required data fields."""
        for scenario in SAMPLE_SCENARIOS:
            # Basic fields
            assert scenario.id
            assert scenario.name
            assert scenario.description
            assert scenario.image_files

            # Project data required fields
            assert "project_name" in scenario.project_data
            assert "address" in scenario.project_data
            assert "city" in scenario.project_data
            assert "state" in scenario.project_data
            assert "zip_code" in scenario.project_data
            assert "client_name" in scenario.project_data
            assert "fire_date" in scenario.project_data
            assert "assessment_date" in scenario.project_data
            assert "facility_classification" in scenario.project_data
            assert "construction_era" in scenario.project_data
            assert "assessor_name" in scenario.project_data

            # Room data required fields
            assert "name" in scenario.room_data
            assert "length_ft" in scenario.room_data
            assert "width_ft" in scenario.room_data
            assert "ceiling_height_ft" in scenario.room_data

            # Observations should have smoke/fire odor at minimum
            assert "smoke_fire_odor" in scenario.observations_data


class TestSampleImages:
    """Test sample image file existence."""

    def test_sample_images_dir_exists(self):
        """Verify sample images directory exists."""
        assert SAMPLE_IMAGES_DIR.exists()
        assert SAMPLE_IMAGES_DIR.is_dir()

    def test_all_referenced_images_exist(self):
        """Verify all images referenced in scenarios exist on disk."""
        missing_files = []
        for scenario in SAMPLE_SCENARIOS:
            for filename in scenario.image_files:
                filepath = SAMPLE_IMAGES_DIR / filename
                if not filepath.exists():
                    missing_files.append(f"{scenario.id}: {filename}")

        assert not missing_files, f"Missing image files: {missing_files}"

    def test_bar_dining_has_3_images(self):
        """Verify Bar & Dining scenario has 3 images."""
        scenario = SAMPLE_SCENARIOS_BY_ID["bar_dining"]
        assert len(scenario.image_files) == 3

    def test_bar_area_has_3_images(self):
        """Verify Bar Area scenario has 3 images."""
        scenario = SAMPLE_SCENARIOS_BY_ID["bar_area"]
        assert len(scenario.image_files) == 3

    def test_kitchen_has_6_images(self):
        """Verify Kitchen scenario has 6 images."""
        scenario = SAMPLE_SCENARIOS_BY_ID["kitchen"]
        assert len(scenario.image_files) == 6

    def test_factory_has_1_image(self):
        """Verify Factory scenario has 1 image."""
        scenario = SAMPLE_SCENARIOS_BY_ID["factory"]
        assert len(scenario.image_files) == 1


class TestGetSampleChoices:
    """Test get_sample_choices function."""

    def test_returns_list_of_tuples(self):
        """Verify function returns list of (label, value) tuples."""
        choices = get_sample_choices()
        assert isinstance(choices, list)
        for choice in choices:
            assert isinstance(choice, tuple)
            assert len(choice) == 2

    def test_first_choice_is_placeholder(self):
        """Verify first choice is the placeholder."""
        choices = get_sample_choices()
        label, value = choices[0]
        assert "Select" in label
        assert value == ""

    def test_returns_5_choices(self):
        """Verify returns 5 choices (1 placeholder + 4 scenarios)."""
        choices = get_sample_choices()
        assert len(choices) == 5

    def test_all_scenario_ids_in_choices(self):
        """Verify all scenario IDs appear in choices."""
        choices = get_sample_choices()
        values = [v for _, v in choices]
        assert "bar_dining" in values
        assert "bar_area" in values
        assert "kitchen" in values
        assert "factory" in values


class TestLoadSample:
    """Test load_sample function."""

    def test_load_valid_scenario_returns_session(self):
        """Verify loading valid scenario returns SessionState."""
        session = load_sample("bar_dining")
        assert session is not None
        assert isinstance(session, SessionState)

        # Cleanup
        image_store.clear()

    def test_load_invalid_scenario_returns_none(self):
        """Verify loading invalid scenario returns None."""
        session = load_sample("nonexistent_scenario")
        assert session is None

    def test_loaded_session_has_project_data(self):
        """Verify loaded session has correct project data."""
        session = load_sample("bar_dining")
        assert session.project.project_name == "Sample: Bar & Dining Fire Assessment"
        assert session.project.city == "Springfield"
        assert session.project.state == "IL"

        # Cleanup
        image_store.clear()

    def test_loaded_session_has_room(self):
        """Verify loaded session has room data."""
        session = load_sample("kitchen")
        assert len(session.rooms) == 1
        assert session.rooms[0].name == "Commercial Kitchen"
        assert session.rooms[0].length_ft == 30.0
        assert session.rooms[0].width_ft == 25.0

        # Cleanup
        image_store.clear()

    def test_loaded_session_has_images(self):
        """Verify loaded session has images loaded into store."""
        session = load_sample("bar_area")
        assert len(session.images) == 3

        # Verify images are in store
        for img in session.images:
            assert image_store.get(img.id) is not None

        # Cleanup
        image_store.clear()

    def test_loaded_session_has_observations(self):
        """Verify loaded session has observations data."""
        session = load_sample("factory")
        assert session.observations.smoke_fire_odor is True
        assert session.observations.odor_intensity == "strong"
        assert session.observations.large_char_particles is True

        # Cleanup
        image_store.clear()

    def test_loaded_session_tabs_marked_complete(self):
        """Verify loaded session has tabs marked as complete."""
        session = load_sample("bar_dining")
        assert session.tab1_complete is True
        assert session.tab2_complete is True
        assert session.tab3_complete is True
        assert session.tab4_complete is True

        # Cleanup
        image_store.clear()

    def test_facility_classification_correct(self):
        """Verify facility classifications are set correctly."""
        # Restaurant scenarios should be non-operational
        session = load_sample("bar_dining")
        assert session.project.facility_classification == "non-operational"
        image_store.clear()

        # Factory should be operational
        session = load_sample("factory")
        assert session.project.facility_classification == "operational"
        image_store.clear()

    def test_construction_era_correct(self):
        """Verify construction eras are set correctly."""
        # Bar scenarios should be pre-1980
        session = load_sample("bar_area")
        assert session.project.construction_era == "pre-1980"
        image_store.clear()

        # Kitchen should be 1980-2000
        session = load_sample("kitchen")
        assert session.project.construction_era == "1980-2000"
        image_store.clear()


class TestGetScenarioById:
    """Test get_scenario_by_id function."""

    def test_returns_scenario_for_valid_id(self):
        """Verify returns scenario for valid ID."""
        scenario = get_scenario_by_id("kitchen")
        assert scenario is not None
        assert scenario.id == "kitchen"
        assert scenario.name == "Kitchen"

    def test_returns_none_for_invalid_id(self):
        """Verify returns None for invalid ID."""
        scenario = get_scenario_by_id("invalid_id")
        assert scenario is None


class TestLoadSampleImages:
    """Test load_sample_images function."""

    def test_loads_images_into_store(self):
        """Verify images are loaded into image_store."""
        scenario = SAMPLE_SCENARIOS_BY_ID["bar_dining"]
        room_id = "test-room-123"

        image_metas = load_sample_images(scenario, room_id)

        assert len(image_metas) == 3
        for meta in image_metas:
            assert meta.room_id == room_id
            assert image_store.get(meta.id) is not None

        # Cleanup
        image_store.clear()

    def test_image_metadata_has_correct_room_id(self):
        """Verify image metadata has correct room ID."""
        scenario = SAMPLE_SCENARIOS_BY_ID["factory"]
        room_id = "factory-room-456"

        image_metas = load_sample_images(scenario, room_id)

        assert len(image_metas) == 1
        assert image_metas[0].room_id == room_id

        # Cleanup
        image_store.clear()

    def test_image_ids_are_unique(self):
        """Verify each loaded image gets a unique ID."""
        scenario = SAMPLE_SCENARIOS_BY_ID["kitchen"]
        room_id = "kitchen-room"

        image_metas = load_sample_images(scenario, room_id)

        ids = [meta.id for meta in image_metas]
        assert len(ids) == len(set(ids))  # All unique

        # Cleanup
        image_store.clear()