"""Tests for ForgeIntegration."""

from specify_cli.integrations import get_integration
from specify_cli.integrations.manifest import IntegrationManifest
from specify_cli.integrations.forge import format_forge_command_name


class TestForgeCommandNameFormatter:
    """Test the centralized Forge command name formatter."""

    def test_simple_name_without_prefix(self):
        """Test formatting a simple name without 'speckit.' prefix."""
        assert format_forge_command_name("plan") == "speckit-plan"
        assert format_forge_command_name("tasks") == "speckit-tasks"
        assert format_forge_command_name("specify") == "speckit-specify"

    def test_name_with_speckit_prefix(self):
        """Test formatting a name that already has 'speckit.' prefix."""
        assert format_forge_command_name("speckit.plan") == "speckit-plan"
        assert format_forge_command_name("speckit.tasks") == "speckit-tasks"

    def test_extension_command_name(self):
        """Test formatting extension command names with dots."""
        assert format_forge_command_name("speckit.my-extension.example") == "speckit-my-extension-example"
        assert format_forge_command_name("my-extension.example") == "speckit-my-extension-example"

    def test_complex_nested_name(self):
        """Test formatting deeply nested command names."""
        assert format_forge_command_name("speckit.jira.sync-status") == "speckit-jira-sync-status"
        assert format_forge_command_name("speckit.foo.bar.baz") == "speckit-foo-bar-baz"

    def test_name_with_hyphens_preserved(self):
        """Test that existing hyphens are preserved."""
        assert format_forge_command_name("my-extension") == "speckit-my-extension"
        assert format_forge_command_name("speckit.my-ext.test-cmd") == "speckit-my-ext-test-cmd"

    def test_alias_formatting(self):
        """Test formatting alias names."""
        assert format_forge_command_name("speckit.my-extension.example-short") == "speckit-my-extension-example-short"

    def test_idempotent_already_hyphenated(self):
        """Test that already-hyphenated names are returned unchanged (idempotent)."""
        assert format_forge_command_name("speckit-plan") == "speckit-plan"
        assert format_forge_command_name("speckit-my-extension-example") == "speckit-my-extension-example"
        assert format_forge_command_name("speckit-jira-sync-status") == "speckit-jira-sync-status"


class TestForgeIntegration:
    def test_forge_key_and_config(self):
        forge = get_integration("forge")
        assert forge is not None
        assert forge.key == "forge"
        assert forge.config["folder"] == ".forge/"
        assert forge.config["commands_subdir"] == "commands"
        assert forge.config["requires_cli"] is True
        assert forge.registrar_config["args"] == "{{parameters}}"
        assert forge.registrar_config["extension"] == ".md"
        assert forge.context_file == "AGENTS.md"

    def test_command_filename_md(self):
        forge = get_integration("forge")
        assert forge.command_filename("plan") == "speckit.plan.md"

    def test_setup_creates_md_files(self, tmp_path):
        from specify_cli.integrations.forge import ForgeIntegration
        forge = ForgeIntegration()
        m = IntegrationManifest("forge", tmp_path)
        created = forge.setup(tmp_path, m)
        assert len(created) > 0
        # Separate command files from scripts
        command_files = [f for f in created if f.parent == tmp_path / ".forge" / "commands"]
        assert len(command_files) > 0
        for f in command_files:
            assert f.name.endswith(".md")

    def test_setup_upserts_context_section(self, tmp_path):
        from specify_cli.integrations.forge import ForgeIntegration
        forge = ForgeIntegration()
        m = IntegrationManifest("forge", tmp_path)
        forge.setup(tmp_path, m)
        ctx_path = tmp_path / forge.context_file
        assert ctx_path.exists()
        content = ctx_path.read_text(encoding="utf-8")
        assert "<!-- SPECKIT START -->" in content
        assert "<!-- SPECKIT END -->" in content

    def test_all_created_files_tracked_in_manifest(self, tmp_path):
        from specify_cli.integrations.forge import ForgeIntegration
        forge = ForgeIntegration()
        m = IntegrationManifest("forge", tmp_path)
        created = forge.setup(tmp_path, m)
        for f in created:
            rel = f.resolve().relative_to(tmp_path.resolve()).as_posix()
            assert rel in m.files, f"Created file {rel} not tracked in manifest"

    def test_install_uninstall_roundtrip(self, tmp_path):
        from specify_cli.integrations.forge import ForgeIntegration
        forge = ForgeIntegration()
        m = IntegrationManifest("forge", tmp_path)
        created = forge.install(tmp_path, m)
        assert len(created) > 0
        m.save()
        for f in created:
            assert f.exists()
        removed, skipped = forge.uninstall(tmp_path, m)
        assert len(removed) == len(created)
        assert skipped == []

    def test_modified_file_survives_uninstall(self, tmp_path):
        from specify_cli.integrations.forge import ForgeIntegration
        forge = ForgeIntegration()
        m = IntegrationManifest("forge", tmp_path)
        created = forge.install(tmp_path, m)
        m.save()
        # Modify a command file (not a script)
        command_files = [f for f in created if f.parent == tmp_path / ".forge" / "commands"]
        modified_file = command_files[0]
        modified_file.write_text("user modified this", encoding="utf-8")
        removed, skipped = forge.uninstall(tmp_path, m)
        assert modified_file.exists()
        assert modified_file in skipped

    def test_directory_structure(self, tmp_path):
        from specify_cli.integrations.forge import ForgeIntegration
        forge = ForgeIntegration()
        m = IntegrationManifest("forge", tmp_path)
        forge.setup(tmp_path, m)
        commands_dir = tmp_path / ".forge" / "commands"
        assert commands_dir.is_dir()

        # Derive expected command names from the Forge command templates so the test
        # stays in sync if templates are added/removed.
        templates = forge.list_command_templates()
        expected_commands = {t.stem for t in templates}
        assert len(expected_commands) > 0, "No command templates found"

        # Check generated files match templates
        command_files = sorted(commands_dir.glob("speckit.*.md"))
        assert len(command_files) == len(expected_commands)
        actual_commands = {f.name.removeprefix("speckit.").removesuffix(".md") for f in command_files}
        assert actual_commands == expected_commands

    def test_templates_are_processed(self, tmp_path):
        import re
        from specify_cli.integrations.forge import ForgeIntegration
        forge = ForgeIntegration()
        m = IntegrationManifest("forge", tmp_path)
        forge.setup(tmp_path, m)
        commands_dir = tmp_path / ".forge" / "commands"
        for cmd_file in commands_dir.glob("speckit.*.md"):
            content = cmd_file.read_text(encoding="utf-8")
            # Check standard replacements
            assert "{SCRIPT}" not in content, f"{cmd_file.name} has unprocessed {{SCRIPT}}"
            assert "__AGENT__" not in content, f"{cmd_file.name} has unprocessed __AGENT__"
            assert "{ARGS}" not in content, f"{cmd_file.name} has unprocessed {{ARGS}}"
            assert "__SPECKIT_COMMAND_" not in content, f"{cmd_file.name} has unprocessed __SPECKIT_COMMAND_*__"
            # Check Forge-specific: $ARGUMENTS should be replaced with {{parameters}}
            assert "$ARGUMENTS" not in content, f"{cmd_file.name} has unprocessed $ARGUMENTS"
            # Frontmatter sections should be stripped
            assert "\nscripts:\n" not in content
            # Check Forge-specific: command references use hyphen notation, not dot notation
            assert not re.search(r"/speckit\.[a-z]", content), (
                f"{cmd_file.name} contains dot-notation command reference (/speckit.<cmd>); "
                "Forge requires hyphen notation (/speckit-<cmd>) for ZSH compatibility"
            )

    def test_plan_references_correct_context_file(self, tmp_path):
        """The generated plan command must reference forge's context file."""
        from specify_cli.integrations.forge import ForgeIntegration
        forge = ForgeIntegration()
        m = IntegrationManifest("forge", tmp_path)
        forge.setup(tmp_path, m)
        plan_file = tmp_path / ".forge" / "commands" / "speckit.plan.md"
        assert plan_file.exists()
        content = plan_file.read_text(encoding="utf-8")
        assert forge.context_file in content, (
            f"Plan command should reference {forge.context_file!r}"
        )
        assert "__CONTEXT_FILE__" not in content

    def test_forge_specific_transformations(self, tmp_path):
        """Test Forge-specific processing: name injection and handoffs stripping."""
        from specify_cli.integrations.forge import ForgeIntegration
        from specify_cli.agents import CommandRegistrar
        forge = ForgeIntegration()
        m = IntegrationManifest("forge", tmp_path)
        forge.setup(tmp_path, m)
        commands_dir = tmp_path / ".forge" / "commands"

        registrar = CommandRegistrar()
        for cmd_file in commands_dir.glob("speckit.*.md"):
            content = cmd_file.read_text(encoding="utf-8")
            frontmatter, _ = registrar.parse_frontmatter(content)

            # Check that name field is injected in frontmatter
            assert "name" in frontmatter, f"{cmd_file.name} missing injected 'name' field in frontmatter"

            # Check that handoffs frontmatter key is stripped
            assert "handoffs" not in frontmatter, f"{cmd_file.name} has unstripped 'handoffs' key in frontmatter"

    def test_uses_parameters_placeholder(self, tmp_path):
        """Verify Forge replaces $ARGUMENTS with {{parameters}} in generated files."""
        from specify_cli.integrations.forge import ForgeIntegration
        forge = ForgeIntegration()

        # The registrar_config should specify {{parameters}}
        assert forge.registrar_config["args"] == "{{parameters}}"

        # Generate files and verify $ARGUMENTS is replaced with {{parameters}}
        from specify_cli.integrations.manifest import IntegrationManifest
        m = IntegrationManifest("forge", tmp_path)
        forge.setup(tmp_path, m)
        commands_dir = tmp_path / ".forge" / "commands"

        # Check all generated command files
        for cmd_file in commands_dir.glob("speckit.*.md"):
            content = cmd_file.read_text(encoding="utf-8")
            # $ARGUMENTS should be replaced with {{parameters}}
            assert "$ARGUMENTS" not in content, (
                f"{cmd_file.name} still contains $ARGUMENTS - it should be replaced with {{{{parameters}}}}"
            )
            # At least some files should have {{parameters}} (those with user input sections)
            # We'll check the checklist file specifically as it has a User Input section

        # Verify checklist specifically has {{parameters}} in the User Input section
        checklist = commands_dir / "speckit.checklist.md"
        if checklist.exists():
            content = checklist.read_text(encoding="utf-8")
            assert "{{parameters}}" in content, (
                "checklist should contain {{parameters}} in User Input section"
            )

    def test_command_refs_use_hyphen_notation(self, tmp_path):
        """Verify all generated Forge command files use /speckit-foo, not /speckit.foo."""
        import re
        from specify_cli.integrations.forge import ForgeIntegration
        forge = ForgeIntegration()
        m = IntegrationManifest("forge", tmp_path)
        forge.setup(tmp_path, m)
        commands_dir = tmp_path / ".forge" / "commands"

        files_with_refs = []
        files_with_dot_refs = []
        for cmd_file in commands_dir.glob("speckit.*.md"):
            content = cmd_file.read_text(encoding="utf-8")
            if re.search(r"/speckit-[a-z]", content):
                files_with_refs.append(cmd_file.name)
            if re.search(r"/speckit\.[a-z]", content):
                files_with_dot_refs.append(cmd_file.name)

        assert files_with_dot_refs == [], (
            f"Files contain dot-notation command references: {files_with_dot_refs}. "
            "Forge requires hyphen notation (/speckit-<cmd>) for ZSH compatibility."
        )
        assert len(files_with_refs) > 0, (
            "Expected at least one generated Forge command to contain /speckit-<cmd> reference, "
            "but none were found. Check that __SPECKIT_COMMAND_*__ tokens are being resolved."
        )

    def test_name_field_uses_hyphenated_format(self, tmp_path):
        """Verify that injected name fields use hyphenated format (speckit-plan, not speckit.plan)."""
        from specify_cli.integrations.forge import ForgeIntegration
        from specify_cli.agents import CommandRegistrar
        forge = ForgeIntegration()
        m = IntegrationManifest("forge", tmp_path)
        forge.setup(tmp_path, m)
        commands_dir = tmp_path / ".forge" / "commands"

        # Check that name fields use hyphenated format
        registrar = CommandRegistrar()
        for cmd_file in commands_dir.glob("speckit.*.md"):
            content = cmd_file.read_text(encoding="utf-8")
            # Extract the name field from frontmatter using the parser
            frontmatter, _ = registrar.parse_frontmatter(content)
            assert "name" in frontmatter, (
                f"{cmd_file.name} missing injected 'name' field in frontmatter"
            )
            name_value = frontmatter["name"]
            # Name should use hyphens, not dots
            assert "." not in name_value, (
                f"{cmd_file.name} has name field with dots: {name_value} "
                f"(should use hyphens for Forge/ZSH compatibility)"
            )
            assert name_value.startswith("speckit-"), (
                f"{cmd_file.name} name field should start with 'speckit-': {name_value}"
            )


class TestForgeCommandRegistrar:
    """Test CommandRegistrar's Forge-specific name formatting."""

    def test_registrar_formats_extension_command_names_for_forge(self, tmp_path):
        """Verify CommandRegistrar converts dot notation to hyphens for Forge."""
        from specify_cli.agents import CommandRegistrar
        
        # Create a mock extension command file
        ext_dir = tmp_path / "extension"
        ext_dir.mkdir()
        cmd_dir = ext_dir / "commands"
        cmd_dir.mkdir()
        
        # Create a test command with dot notation name
        cmd_file = cmd_dir / "example.md"
        cmd_file.write_text(
            "---\n"
            "description: Test extension command\n"
            "---\n\n"
            "Test content with $ARGUMENTS\n",
            encoding="utf-8"
        )
        
        # Register with Forge
        registrar = CommandRegistrar()
        commands = [
            {
                "name": "speckit.my-extension.example",
                "file": "commands/example.md"
            }
        ]
        
        registered = registrar.register_commands(
            "forge",
            commands,
            "test-extension",
            ext_dir,
            tmp_path
        )
        
        # Verify registration succeeded
        assert "speckit.my-extension.example" in registered
        
        # Check the generated file has hyphenated name in frontmatter
        forge_cmd = tmp_path / ".forge" / "commands" / "speckit-my-extension-example.md"
        assert forge_cmd.exists()
        
        content = forge_cmd.read_text(encoding="utf-8")
        # Parse frontmatter to validate name field precisely
        frontmatter, _ = registrar.parse_frontmatter(content)
        assert "name" in frontmatter, "name field should be injected in frontmatter"
        # Name field should use hyphens, not dots
        assert frontmatter["name"] == "speckit-my-extension-example"

    def test_registrar_formats_alias_names_for_forge(self, tmp_path):
        """Verify CommandRegistrar converts alias names to hyphens for Forge."""
        from specify_cli.agents import CommandRegistrar
        
        # Create a mock extension command file
        ext_dir = tmp_path / "extension"
        ext_dir.mkdir()
        cmd_dir = ext_dir / "commands"
        cmd_dir.mkdir()
        
        cmd_file = cmd_dir / "example.md"
        cmd_file.write_text(
            "---\n"
            "description: Test command with alias\n"
            "---\n\n"
            "Test content\n",
            encoding="utf-8"
        )
        
        # Register with Forge including an alias
        registrar = CommandRegistrar()
        commands = [
            {
                "name": "speckit.my-extension.example",
                "file": "commands/example.md",
                "aliases": ["speckit.my-extension.ex"]
            }
        ]
        
        registrar.register_commands(
            "forge",
            commands,
            "test-extension",
            ext_dir,
            tmp_path
        )
        
        # Check the alias file has hyphenated name in frontmatter
        alias_file = tmp_path / ".forge" / "commands" / "speckit-my-extension-ex.md"
        assert alias_file.exists()
        
        content = alias_file.read_text(encoding="utf-8")
        # Parse frontmatter to validate alias name field precisely
        frontmatter, _ = registrar.parse_frontmatter(content)
        assert "name" in frontmatter, "name field should be injected in alias frontmatter"
        # Alias name field should also use hyphens
        assert frontmatter["name"] == "speckit-my-extension-ex"

    def test_registrar_does_not_affect_other_agents(self, tmp_path):
        """Verify format_name callback is Forge-specific and doesn't affect other agents."""
        from specify_cli.agents import CommandRegistrar
        
        # Create a mock extension command file
        ext_dir = tmp_path / "extension"
        ext_dir.mkdir()
        cmd_dir = ext_dir / "commands"
        cmd_dir.mkdir()
        
        cmd_file = cmd_dir / "example.md"
        cmd_file.write_text(
            "---\n"
            "description: Test command\n"
            "---\n\n"
            "Test content with $ARGUMENTS\n",
            encoding="utf-8"
        )
        
        # Register with Windsurf (standard markdown agent without inject_name)
        registrar = CommandRegistrar()
        commands = [
            {
                "name": "speckit.my-extension.example",
                "file": "commands/example.md"
            }
        ]
        
        registrar.register_commands(
            "windsurf",
            commands,
            "test-extension",
            ext_dir,
            tmp_path
        )
        
        # Windsurf uses standard markdown format without name injection.
        # The format_name callback should not be invoked for non-Forge agents.
        windsurf_cmd = tmp_path / ".windsurf" / "workflows" / "speckit.my-extension.example.md"
        assert windsurf_cmd.exists()
        
        content = windsurf_cmd.read_text(encoding="utf-8")
        # Windsurf should NOT have a name field injected
        assert "name:" not in content, (
            "Windsurf should not inject name field - format_name callback should be Forge-only"
        )

    def test_git_extension_command_uses_hyphen_notation(self, tmp_path):
        """Verify the git extension's feature command uses /speckit-specify (not /speckit.specify) for Forge."""
        from pathlib import Path
        from specify_cli.agents import CommandRegistrar

        # Locate the real git extension command source file
        repo_root = Path(__file__).resolve().parent.parent.parent
        ext_dir = repo_root / "extensions" / "git"
        cmd_source = ext_dir / "commands" / "speckit.git.feature.md"
        assert cmd_source.exists(), (
            f"Git extension command source not found at {cmd_source}. "
            "Ensure extensions/git/commands/speckit.git.feature.md exists."
        )

        registrar = CommandRegistrar()
        commands = [
            {
                "name": "speckit.git.feature",
                "file": "commands/speckit.git.feature.md",
            }
        ]

        registered = registrar.register_commands(
            "forge",
            commands,
            "git",
            ext_dir,
            tmp_path,
        )

        assert "speckit.git.feature" in registered

        forge_cmd = tmp_path / ".forge" / "commands" / "speckit-git-feature.md"
        assert forge_cmd.exists(), "Expected Forge command file was not created"

        content = forge_cmd.read_text(encoding="utf-8")
        assert "/speckit-specify" in content, (
            "Expected '/speckit-specify' (hyphen) in generated Forge git.feature command body, "
            "but it was not found. Check that __SPECKIT_COMMAND_SPECIFY__ is resolved correctly."
        )
        assert "/speckit.specify" not in content, (
            "Found '/speckit.specify' (dot notation) in generated Forge git.feature command body. "
            "Forge requires hyphen notation for ZSH compatibility."
        )
