"""
Tests for alfred.agent.workflows.loader.WorkflowLoader
"""

import pytest
import yaml

from alfred.agent.workflows.loader import WorkflowLoader

# ---------------------------------------------------------------------------
# Fixtures
# ---------------------------------------------------------------------------


@pytest.fixture
def workflows_dir(tmp_path):
    """A temp directory pre-populated with one valid workflow YAML."""
    wf = {
        "name": "test_workflow",
        "description": "A test workflow",
        "tools": ["list_folder", "move_media"],
        "steps": [
            {"id": "step1", "tool": "list_folder"},
        ],
    }
    (tmp_path / "test_workflow.yaml").write_text(yaml.dump(wf))
    return tmp_path


@pytest.fixture
def loader_from_dir(workflows_dir, monkeypatch):
    """WorkflowLoader pointed at our temp dir."""
    import alfred.agent.workflows.loader as loader_module

    monkeypatch.setattr(loader_module, "_WORKFLOWS_DIR", workflows_dir)
    return WorkflowLoader()


# ---------------------------------------------------------------------------
# Real loader (loads actual YAML files from the repo)
# ---------------------------------------------------------------------------


class TestRealWorkflows:
    def test_organize_media_loaded(self):
        loader = WorkflowLoader()
        assert "organize_media" in loader.names()

    def test_organize_media_has_required_keys(self):
        loader = WorkflowLoader()
        wf = loader.get("organize_media")
        assert "name" in wf
        assert "steps" in wf
        assert "tools" in wf

    def test_organize_media_tools_list(self):
        loader = WorkflowLoader()
        wf = loader.get("organize_media")
        tools = wf["tools"]
        assert "list_folder" in tools
        assert "move_media" in tools
        assert "manage_subtitles" in tools
        assert "create_seed_links" in tools
        assert "resolve_destination" in tools

    def test_organize_media_steps_order(self):
        loader = WorkflowLoader()
        wf = loader.get("organize_media")
        step_ids = [s["id"] for s in wf["steps"]]
        # resolve_destination must come before move_file
        assert step_ids.index("resolve_destination") < step_ids.index("move_file")
        # move_file before handle_subtitles
        assert step_ids.index("move_file") < step_ids.index("handle_subtitles")
        # ask_seeding before create_seed_links
        assert step_ids.index("ask_seeding") < step_ids.index("create_seed_links")

    def test_ask_seeding_has_yes_no_answers(self):
        loader = WorkflowLoader()
        wf = loader.get("organize_media")
        ask_step = next(s for s in wf["steps"] if s["id"] == "ask_seeding")
        answers = ask_step["ask_user"]["answers"]
        # PyYAML parses yes/no as booleans — we normalise to str in runtime
        answer_keys = {str(k) for k in answers.keys()}
        assert "yes" in answer_keys
        assert "no" in answer_keys

    def test_naming_convention_present(self):
        loader = WorkflowLoader()
        wf = loader.get("organize_media")
        assert "naming_convention" in wf
        assert "tv_show" in wf["naming_convention"]
        assert "movie" in wf["naming_convention"]


# ---------------------------------------------------------------------------
# WorkflowLoader mechanics (via monkeypatched dir)
# ---------------------------------------------------------------------------


class TestLoaderMechanics:
    def test_get_returns_workflow(self, loader_from_dir):
        wf = loader_from_dir.get("test_workflow")
        assert wf is not None
        assert wf["name"] == "test_workflow"

    def test_get_returns_none_for_unknown(self, loader_from_dir):
        assert loader_from_dir.get("nonexistent") is None

    def test_names_returns_list(self, loader_from_dir):
        names = loader_from_dir.names()
        assert isinstance(names, list)
        assert "test_workflow" in names

    def test_all_returns_dict(self, loader_from_dir):
        all_wf = loader_from_dir.all()
        assert isinstance(all_wf, dict)
        assert "test_workflow" in all_wf

    def test_uses_yaml_name_field(self, tmp_path, monkeypatch):
        """name from YAML content takes priority over filename stem."""
        import alfred.agent.workflows.loader as loader_module

        monkeypatch.setattr(loader_module, "_WORKFLOWS_DIR", tmp_path)

        wf = {"name": "my_custom_name", "steps": []}
        (tmp_path / "completely_different_filename.yaml").write_text(yaml.dump(wf))

        loader = WorkflowLoader()
        assert "my_custom_name" in loader.names()
        assert "completely_different_filename" not in loader.names()

    def test_falls_back_to_stem_when_no_name(self, tmp_path, monkeypatch):
        import alfred.agent.workflows.loader as loader_module

        monkeypatch.setattr(loader_module, "_WORKFLOWS_DIR", tmp_path)

        (tmp_path / "my_workflow.yaml").write_text(yaml.dump({"steps": []}))
        loader = WorkflowLoader()
        assert "my_workflow" in loader.names()

    def test_skips_malformed_yaml(self, tmp_path, monkeypatch):
        import alfred.agent.workflows.loader as loader_module

        monkeypatch.setattr(loader_module, "_WORKFLOWS_DIR", tmp_path)

        (tmp_path / "valid.yaml").write_text(yaml.dump({"name": "valid", "steps": []}))
        (tmp_path / "broken.yaml").write_text("key: [unclosed bracket")

        loader = WorkflowLoader()
        assert "valid" in loader.names()
        assert "broken" not in loader.names()

    def test_deterministic_load_order(self, tmp_path, monkeypatch):
        """Files loaded in sorted order — later file wins on name collision."""
        import alfred.agent.workflows.loader as loader_module

        monkeypatch.setattr(loader_module, "_WORKFLOWS_DIR", tmp_path)

        (tmp_path / "a_workflow.yaml").write_text(
            yaml.dump({"name": "duplicate", "version": 1})
        )
        (tmp_path / "b_workflow.yaml").write_text(
            yaml.dump({"name": "duplicate", "version": 2})
        )

        loader = WorkflowLoader()
        # b_workflow loaded last → version 2 wins
        assert loader.get("duplicate")["version"] == 2

    def test_empty_directory(self, tmp_path, monkeypatch):
        import alfred.agent.workflows.loader as loader_module

        monkeypatch.setattr(loader_module, "_WORKFLOWS_DIR", tmp_path)

        loader = WorkflowLoader()
        assert loader.names() == []
        assert loader.all() == {}