"""
Layout Migrator for Hephaestus

Migrates traditional Anvil layouts (ColumnPanel, FlowPanel, GridPanel, XYPanel)
to modern slot-based layout architecture (NavigationDrawerLayout, NavigationRailLayout).
"""

from typing import Dict, List, Any, Optional, Tuple
from dataclasses import dataclass
from enum import Enum
from pathlib import Path
import yaml
import re

from ..dependencies.container import FileSystem, ProjectManager


class LayoutType(Enum):
    """Types of Anvil layouts."""

    COLUMN_PANEL = "ColumnPanel"
    FLOW_PANEL = "FlowPanel"
    GRID_PANEL = "GridPanel"
    XY_PANEL = "XYPanel"
    NAVIGATION_DRAWER = "NavigationDrawerLayout"
    NAVIGATION_RAIL = "NavigationRailLayout"
    CUSTOM_LAYOUT = "CustomLayout"


class MigrationStrategy(Enum):
    """Layout migration strategies."""

    DIRECT_REPLACEMENT = "direct_replacement"
    GRADUAL_MIGRATION = "gradual_migration"
    HYBRID_LAYOUT = "hybrid_layout"
    PRESERVE_LEGACY = "preserve_legacy"


@dataclass
class LayoutMapping:
    """Mapping between legacy and modern layout components."""

    legacy_type: LayoutType
    modern_type: LayoutType
    migration_complexity: str
    properties_to_migrate: List[str]
    layout_properties_to_migrate: List[str]
    child_components_to_preserve: List[str]
    breaking_changes: List[str]


@dataclass
class MigrationResult:
    """Result of layout migration."""

    success: bool
    layouts_migrated: int
    components_updated: int
    properties_migrated: int
    breaking_changes: List[str]
    warnings: List[str]
    validation_errors: List[str]
    migration_notes: List[str]
    rollback_available: bool


class LayoutMigrator:
    """Migrates traditional Anvil layouts to modern slot-based architecture."""

    def __init__(self, file_system: FileSystem, project_manager: ProjectManager):
        self.file_system = file_system
        self.project_manager = project_manager

        # Layout type mappings
        self._layout_mappings = self._initialize_layout_mappings()

        # Layout pattern detection
        self._layout_patterns = self._initialize_layout_patterns()

        # Slot-based layout templates
        self._layout_templates = self._initialize_layout_templates()

        # Migration rules
        self._migration_rules = self._initialize_migration_rules()

    def modernize_layout_architecture(
        self,
        project_path: Path,
        strategy: MigrationStrategy = MigrationStrategy.GRADUAL_MIGRATION,
        target_layout_type: Optional[LayoutType] = None,
    ) -> MigrationResult:
        """Modernize layout architecture from traditional panels to slot-based layouts."""
        try:
            # Analyze current layout usage
            layout_analysis = self._analyze_layout_usage(project_path)

            # Determine optimal migration strategy
            if target_layout_type:
                migration_plan = self._create_targeted_migration_plan(
                    layout_analysis, target_layout_type, strategy
                )
            else:
                migration_plan = self._create_optimal_migration_plan(
                    layout_analysis, strategy
                )

            # Execute migration
            migration_result = self._execute_layout_migration(
                project_path, migration_plan
            )

            # Validate migration
            validation_result = self._validate_layout_migration(
                project_path, migration_result
            )

            return MigrationResult(
                success=migration_result.success and validation_result.success,
                layouts_migrated=migration_result.layouts_migrated,
                components_updated=migration_result.components_updated,
                properties_migrated=migration_result.properties_migrated,
                breaking_changes=migration_result.breaking_changes,
                warnings=migration_result.warnings + validation_result.warnings,
                validation_errors=validation_result.errors,
                migration_notes=migration_result.migration_notes,
                rollback_available=migration_result.rollback_available,
            )

        except Exception as e:
            return MigrationResult(
                success=False,
                layouts_migrated=0,
                components_updated=0,
                properties_migrated=0,
                breaking_changes=[],
                warnings=[f"Migration failed: {str(e)}"],
                validation_errors=[],
                migration_notes=[],
                rollback_available=False,
            )

    def analyze_layout_migration_feasibility(
        self, project_path: Path
    ) -> Dict[str, Any]:
        """Analyze layout migration feasibility and complexity."""
        try:
            layout_analysis = self._analyze_layout_usage(project_path)

            # Assess migration complexity
            complexity_assessment = self._assess_migration_complexity(layout_analysis)

            # Identify migration opportunities
            migration_opportunities = self._identify_migration_opportunities(
                layout_analysis
            )

            # Identify potential issues
            potential_issues = self._identify_potential_issues(layout_analysis)

            # Recommend migration strategy
            recommended_strategy = self._recommend_migration_strategy(
                layout_analysis, complexity_assessment
            )

            return {
                "feasible": len(layout_analysis["legacy_layouts"]) > 0,
                "total_layouts": layout_analysis["total_layouts"],
                "legacy_layouts": layout_analysis["legacy_layouts"],
                "modern_layouts": layout_analysis["modern_layouts"],
                "complexity": complexity_assessment["level"],
                "estimated_effort": complexity_assessment["estimated_effort"],
                "migration_opportunities": migration_opportunities,
                "potential_issues": potential_issues,
                "recommended_strategy": recommended_strategy.value,
                "prerequisites": self._identify_prerequisites(),
                "benefits": self._identify_migration_benefits(),
            }

        except Exception as e:
            return {
                "error": str(e),
                "feasible": False,
            }

    def create_layout_migration_plan(
        self,
        project_path: Path,
        target_layout_type: Optional[LayoutType] = None,
        strategy: Optional[MigrationStrategy] = None,
    ) -> Dict[str, Any]:
        """Create detailed layout migration plan."""
        try:
            layout_analysis = self._analyze_layout_usage(project_path)

            if not strategy:
                strategy = self._recommend_migration_strategy(layout_analysis)

            # Create migration steps
            migration_steps = self._create_migration_steps(
                layout_analysis, strategy, target_layout_type
            )

            # Create layout mappings
            layout_mappings = self._create_layout_mappings(
                layout_analysis, target_layout_type
            )

            # Create validation checkpoints
            validation_checkpoints = self._create_validation_checkpoints(
                migration_steps
            )

            # Create rollback plan
            rollback_plan = self._create_rollback_plan(layout_analysis)

            return {
                "strategy": strategy.value,
                "target_layout_type": target_layout_type.value
                if target_layout_type
                else "auto",
                "migration_steps": migration_steps,
                "layout_mappings": layout_mappings,
                "validation_checkpoints": validation_checkpoints,
                "rollback_plan": rollback_plan,
                "estimated_timeline": self._estimate_migration_timeline(
                    migration_steps
                ),
                "resource_requirements": self._identify_resource_requirements(
                    migration_steps
                ),
                "success_criteria": self._define_success_criteria(),
            }

        except Exception as e:
            return {
                "error": str(e),
            }

    def _initialize_layout_mappings(self) -> Dict[LayoutType, LayoutMapping]:
        """Initialize layout type mappings."""
        return {
            LayoutType.COLUMN_PANEL: LayoutMapping(
                legacy_type=LayoutType.COLUMN_PANEL,
                modern_type=LayoutType.NAVIGATION_DRAWER,
                migration_complexity="moderate",
                properties_to_migrate=["spacing", "padding", "align"],
                layout_properties_to_migrate=["full_width_row"],
                child_components_to_preserve=["all"],
                breaking_changes=[
                    "grid_position properties will be converted to slot assignments",
                    "spacing model changes from pixels to Material Design spacing",
                ],
            ),
            LayoutType.FLOW_PANEL: LayoutMapping(
                legacy_type=LayoutType.FLOW_PANEL,
                modern_type=LayoutType.NAVIGATION_RAIL,
                migration_complexity="simple",
                properties_to_migrate=["spacing", "wrap", "align"],
                layout_properties_to_migrate=["width"],
                child_components_to_preserve=["all"],
                breaking_changes=[
                    "flow layout behavior changes to slot-based positioning",
                ],
            ),
            LayoutType.GRID_PANEL: LayoutMapping(
                legacy_type=LayoutType.GRID_PANEL,
                modern_type=LayoutType.NAVIGATION_DRAWER,
                migration_complexity="complex",
                properties_to_migrate=["spacing", "padding", "column_widths"],
                layout_properties_to_migrate=["grid_position"],
                child_components_to_preserve=["all"],
                breaking_changes=[
                    "grid positioning converted to responsive slot layout",
                    "fixed column widths become responsive",
                ],
            ),
            LayoutType.XY_PANEL: LayoutMapping(
                legacy_type=LayoutType.XY_PANEL,
                modern_type=LayoutType.NAVIGATION_DRAWER,
                migration_complexity="very_complex",
                properties_to_migrate=["width", "height"],
                layout_properties_to_migrate=["x", "y"],
                child_components_to_preserve=["all"],
                breaking_changes=[
                    "absolute positioning converted to responsive layout",
                    "manual x,y coordinates become slot-based",
                ],
            ),
        }

    def _initialize_layout_patterns(self) -> Dict[str, str]:
        """Initialize layout detection patterns."""
        return {
            "column_panel": r"type:\s*ColumnPanel",
            "flow_panel": r"type:\s*FlowPanel",
            "grid_panel": r"type:\s*GridPanel",
            "xy_panel": r"type:\s*XYPanel",
            "navigation_drawer": r"type:\s*NavigationDrawerLayout",
            "navigation_rail": r"type:\s*NavigationRailLayout",
        }

    def _initialize_layout_templates(self) -> Dict[LayoutType, Dict[str, Any]]:
        """Initialize modern layout templates."""
        return {
            LayoutType.NAVIGATION_DRAWER: {
                "container": {
                    "type": "NavigationDrawerLayout",
                    "properties": {
                        "drawer_width": "280px",
                        "app_bar_height": "64px",
                    },
                    "slots": {
                        "app_bar": {},
                        "drawer": {},
                        "content": {},
                        "floating_action_button": {},
                    },
                },
                "slot_mappings": {
                    "navigation_components": "drawer",
                    "main_content": "content",
                    "header_components": "app_bar",
                    "action_buttons": "floating_action_button",
                },
            },
            LayoutType.NAVIGATION_RAIL: {
                "container": {
                    "type": "NavigationRailLayout",
                    "properties": {
                        "rail_width": "80px",
                        "app_bar_height": "64px",
                    },
                    "slots": {
                        "app_bar": {},
                        "rail": {},
                        "content": {},
                        "floating_action_button": {},
                    },
                },
                "slot_mappings": {
                    "navigation_components": "rail",
                    "main_content": "content",
                    "header_components": "app_bar",
                    "action_buttons": "floating_action_button",
                },
            },
        }

    def _initialize_migration_rules(self) -> Dict[str, Any]:
        """Initialize migration rules and transformations."""
        return {
            "property_transformations": {
                "spacing": {
                    "legacy_pattern": r"(\d+)px",
                    "modern_pattern": r"spacing_\1",
                    "conversion": "px_to_material_spacing",
                },
                "padding": {
                    "legacy_pattern": r"(\d+)px",
                    "modern_pattern": r"padding_\1",
                    "conversion": "px_to_material_spacing",
                },
            },
            "component_placement": {
                "grid_to_slot": {
                    "rule": "convert_grid_position_to_slot",
                    "priority": "high",
                },
                "xy_to_slot": {
                    "rule": "convert_xy_position_to_slot",
                    "priority": "high",
                },
            },
            "responsive_design": {
                "breakpoints": {
                    "mobile": "600px",
                    "tablet": "960px",
                    "desktop": "1280px",
                },
                "adaptation_rules": {
                    "navigation": "drawer_on_mobile_rail_on_desktop",
                    "content": "full_width_on_mobile_constrained_on_desktop",
                },
            },
        }

    def _analyze_layout_usage(self, project_path: Path) -> Dict[str, Any]:
        """Analyze current layout usage in project."""
        forms = self._find_form_files(project_path)

        layout_usage = {
            "total_layouts": 0,
            "legacy_layouts": [],
            "modern_layouts": [],
            "mixed_layouts": [],
            "layout_details": [],
        }

        for form_file in forms:
            form_content = self.file_system.read_file(form_file)
            if not form_content:
                continue

            try:
                form_yaml = yaml.safe_load(form_content)
                if not form_yaml:
                    continue

                container = form_yaml.get("container", {})
                container_type = container.get("type", "")

                layout_info = {
                    "form_path": str(form_file),
                    "container_type": container_type,
                    "is_legacy": self._is_legacy_layout(container_type),
                    "is_modern": self._is_modern_layout(container_type),
                    "component_count": len(form_yaml.get("components", [])),
                    "has_navigation": self._has_navigation_components(form_yaml),
                    "complexity": self._assess_form_complexity(form_yaml),
                }

                layout_usage["layout_details"].append(layout_info)
                layout_usage["total_layouts"] += 1

                if layout_info["is_legacy"]:
                    layout_usage["legacy_layouts"].append(layout_info)
                elif layout_info["is_modern"]:
                    layout_usage["modern_layouts"].append(layout_info)
                else:
                    layout_usage["mixed_layouts"].append(layout_info)

            except yaml.YAMLError:
                continue

        return layout_usage

    def _is_legacy_layout(self, container_type: str) -> bool:
        """Check if layout type is legacy."""
        legacy_types = [
            "ColumnPanel",
            "FlowPanel",
            "GridPanel",
            "XYPanel",
        ]
        return container_type in legacy_types

    def _is_modern_layout(self, container_type: str) -> bool:
        """Check if layout type is modern."""
        modern_types = [
            "NavigationDrawerLayout",
            "NavigationRailLayout",
        ]
        return container_type in modern_types

    def _has_navigation_components(self, form_yaml: Dict[str, Any]) -> bool:
        """Check if form has navigation components."""
        components = form_yaml.get("components", [])
        navigation_indicators = ["nav", "menu", "drawer", "rail", "navigation"]

        for component in components:
            component_name = component.get("name", "").lower()
            component_type = component.get("type", "").lower()

            if any(
                indicator in component_name or indicator in component_type
                for indicator in navigation_indicators
            ):
                return True

        return False

    def _assess_form_complexity(self, form_yaml: Dict[str, Any]) -> str:
        """Assess form complexity based on components and structure."""
        components = form_yaml.get("components", [])
        component_count = len(components)

        # Check for complex patterns
        has_nested_containers = any(
            comp.get("type", "").endswith("Panel") for comp in components
        )
        has_data_bindings = any(comp.get("data_bindings") for comp in components)
        has_event_bindings = any(comp.get("event_bindings") for comp in components)

        if component_count > 20 or has_nested_containers:
            return "complex"
        elif component_count > 10 or (has_data_bindings and has_event_bindings):
            return "moderate"
        else:
            return "simple"

    def _find_form_files(self, project_path: Path) -> List[Path]:
        """Find all form YAML files in project."""
        form_files = []

        # Search for .yaml files in client_code
        client_code = project_path / "client_code"
        if client_code.exists():
            form_files.extend(client_code.rglob("*.yaml"))
            form_files.extend(client_code.rglob("*.yml"))

        return form_files

    def _assess_migration_complexity(
        self, layout_analysis: Dict[str, Any]
    ) -> Dict[str, Any]:
        """Assess overall migration complexity."""
        legacy_count = len(layout_analysis["legacy_layouts"])
        total_count = layout_analysis["total_layouts"]

        # Calculate complexity score
        complexity_score = 0
        for layout in layout_analysis["legacy_layouts"]:
            if layout["complexity"] == "complex":
                complexity_score += 3
            elif layout["complexity"] == "moderate":
                complexity_score += 2
            else:
                complexity_score += 1

        # Determine complexity level
        if complexity_score > 10:
            level = "very_complex"
        elif complexity_score > 5:
            level = "complex"
        elif complexity_score > 2:
            level = "moderate"
        else:
            level = "simple"

        # Estimate effort
        effort_hours = complexity_score * 2  # Rough estimate

        return {
            "level": level,
            "complexity_score": complexity_score,
            "estimated_effort": f"{effort_hours} hours",
            "legacy_layout_count": legacy_count,
            "total_layout_count": total_count,
        }

    def _identify_migration_opportunities(
        self, layout_analysis: Dict[str, Any]
    ) -> List[Dict[str, Any]]:
        """Identify specific migration opportunities."""
        opportunities = []

        for layout in layout_analysis["legacy_layouts"]:
            opportunity = {
                "form_path": layout["form_path"],
                "current_type": layout["container_type"],
                "recommended_type": self._recommend_modern_type(layout),
                "benefits": self._get_migration_benefits(layout),
                "effort": layout["complexity"],
            }
            opportunities.append(opportunity)

        return opportunities

    def _recommend_modern_type(self, layout: Dict[str, Any]) -> str:
        """Recommend modern layout type based on current layout."""
        current_type = layout["container_type"]
        has_navigation = layout["has_navigation"]
        component_count = layout["component_count"]

        if has_navigation:
            if component_count > 15:
                return "NavigationDrawerLayout"
            else:
                return "NavigationRailLayout"
        elif current_type == "ColumnPanel":
            return "NavigationDrawerLayout"
        elif current_type in ["FlowPanel", "GridPanel"]:
            return "NavigationRailLayout"
        else:
            return "NavigationDrawerLayout"  # Default

    def _get_migration_benefits(self, layout: Dict[str, Any]) -> List[str]:
        """Get specific benefits for migrating this layout."""
        benefits = [
            "Responsive design for mobile and desktop",
            "Material Design 3 compliance",
            "Improved accessibility",
            "Better performance with slot-based rendering",
        ]

        if layout["has_navigation"]:
            benefits.append("Modern navigation patterns")

        if layout["complexity"] == "complex":
            benefits.append("Simplified layout management")

        return benefits

    def _identify_potential_issues(self, layout_analysis: Dict[str, Any]) -> List[str]:
        """Identify potential migration issues."""
        issues = []

        for layout in layout_analysis["legacy_layouts"]:
            if layout["container_type"] == "XYPanel":
                issues.append(
                    f"Absolute positioning in {layout['form_path']} may require manual adjustment"
                )

            if layout["complexity"] == "complex":
                issues.append(
                    f"Complex layout in {layout['form_path']} may need careful testing"
                )

        if len(layout_analysis["legacy_layouts"]) > 5:
            issues.append("Large number of layouts may require phased migration")

        return issues

    def _recommend_migration_strategy(
        self,
        layout_analysis: Dict[str, Any],
        complexity_assessment: Optional[Dict[str, Any]] = None,
    ) -> MigrationStrategy:
        """Recommend optimal migration strategy."""
        legacy_count = len(layout_analysis["legacy_layouts"])

        if complexity_assessment:
            complexity = complexity_assessment["level"]
        else:
            complexity = "moderate"  # Default

        if complexity == "very_complex" or legacy_count > 10:
            return MigrationStrategy.GRADUAL_MIGRATION
        elif complexity == "complex" or legacy_count > 5:
            return MigrationStrategy.HYBRID_LAYOUT
        else:
            return MigrationStrategy.DIRECT_REPLACEMENT

    def _identify_prerequisites(self) -> List[str]:
        """Identify migration prerequisites."""
        return [
            "Material 3 theme dependency",
            "Updated Anvil runtime (v1.0+)",
            "Backup of existing forms",
            "Testing environment setup",
        ]

    def _identify_migration_benefits(self) -> List[str]:
        """Identify general migration benefits."""
        return [
            "Responsive design out of the box",
            "Material Design 3 compliance",
            "Better mobile experience",
            "Improved accessibility",
            "Modern navigation patterns",
            "Easier maintenance",
            "Better performance",
        ]

    def _create_migration_steps(
        self,
        layout_analysis: Dict[str, Any],
        strategy: MigrationStrategy,
        target_layout_type: Optional[LayoutType],
    ) -> List[Dict[str, Any]]:
        """Create detailed migration steps."""
        steps = []

        # Step 1: Preparation
        steps.append(
            {
                "step": 1,
                "title": "Preparation and Backup",
                "description": "Create backups and prepare migration environment",
                "tasks": [
                    "Backup all form files",
                    "Install Material 3 dependency",
                    "Create testing branch",
                ],
                "estimated_time": "30 minutes",
            }
        )

        # Step 2: Layout Analysis
        steps.append(
            {
                "step": 2,
                "title": "Layout Analysis",
                "description": "Analyze current layouts and create migration plan",
                "tasks": [
                    "Identify legacy layouts",
                    "Map components to slots",
                    "Plan responsive behavior",
                ],
                "estimated_time": "1-2 hours",
            }
        )

        # Step 3: Migration Execution
        if strategy == MigrationStrategy.DIRECT_REPLACEMENT:
            steps.append(
                {
                    "step": 3,
                    "title": "Direct Layout Migration",
                    "description": "Replace legacy layouts with modern equivalents",
                    "tasks": [
                        "Update container types",
                        "Migrate properties",
                        "Assign components to slots",
                    ],
                    "estimated_time": "2-4 hours",
                }
            )
        elif strategy == MigrationStrategy.GRADUAL_MIGRATION:
            steps.append(
                {
                    "step": 3,
                    "title": "Gradual Layout Migration",
                    "description": "Migrate layouts incrementally",
                    "tasks": [
                        "Start with simple layouts",
                        "Test each migration",
                        "Proceed to complex layouts",
                    ],
                    "estimated_time": "1-2 weeks",
                }
            )

        # Step 4: Testing and Validation
        steps.append(
            {
                "step": 4,
                "title": "Testing and Validation",
                "description": "Test migrated layouts and validate functionality",
                "tasks": [
                    "Test responsive behavior",
                    "Validate navigation",
                    "Check component functionality",
                ],
                "estimated_time": "2-4 hours",
            }
        )

        return steps

    def _create_layout_mappings(
        self,
        layout_analysis: Dict[str, Any],
        target_layout_type: Optional[LayoutType],
    ) -> List[Dict[str, Any]]:
        """Create layout mappings for migration."""
        mappings = []

        for layout in layout_analysis["legacy_layouts"]:
            legacy_type = LayoutType(layout["container_type"])
            modern_type = target_layout_type or LayoutType.NAVIGATION_DRAWER

            mapping = self._layout_mappings.get(legacy_type)
            if mapping:
                mappings.append(
                    {
                        "form_path": layout["form_path"],
                        "legacy_type": legacy_type.value,
                        "modern_type": modern_type.value,
                        "migration_complexity": mapping.migration_complexity,
                        "properties_to_migrate": mapping.properties_to_migrate,
                        "breaking_changes": mapping.breaking_changes,
                    }
                )

        return mappings

    def _create_validation_checkpoints(
        self, migration_steps: List[Dict[str, Any]]
    ) -> List[Dict[str, Any]]:
        """Create validation checkpoints for migration."""
        checkpoints = []

        for step in migration_steps:
            checkpoint = {
                "step_number": step["step"],
                "title": step["title"],
                "validation_criteria": [
                    "All tasks completed successfully",
                    "No syntax errors in forms",
                    "Components properly positioned",
                ],
                "rollback_point": True,
            }
            checkpoints.append(checkpoint)

        return checkpoints

    def _create_rollback_plan(self, layout_analysis: Dict[str, Any]) -> Dict[str, Any]:
        """Create rollback plan for migration."""
        return {
            "backup_location": "backup/forms/",
            "rollback_steps": [
                "Restore original form files",
                "Remove modern layout dependencies",
                "Test restored functionality",
            ],
            "rollback_time": "30 minutes",
            "data_loss_risk": "low",
        }

    def _estimate_migration_timeline(
        self, migration_steps: List[Dict[str, Any]]
    ) -> str:
        """Estimate total migration timeline."""
        total_hours = 0

        for step in migration_steps:
            time_str = step["estimated_time"]
            if "hour" in time_str.lower():
                hours = int(re.search(r"(\d+)", time_str).group(1))
                total_hours += hours
            elif "minute" in time_str.lower():
                minutes = int(re.search(r"(\d+)", time_str).group(1))
                total_hours += minutes / 60
            elif "week" in time_str.lower():
                weeks = int(re.search(r"(\d+)", time_str).group(1))
                total_hours += weeks * 40  # 40 hours per week

        if total_hours < 8:
            return f"{int(total_hours)} hours"
        elif total_hours < 40:
            return f"{int(total_hours / 8)} days"
        else:
            return f"{int(total_hours / 40)} weeks"

    def _identify_resource_requirements(
        self, migration_steps: List[Dict[str, Any]]
    ) -> Dict[str, Any]:
        """Identify resource requirements for migration."""
        return {
            "developer_time": self._estimate_migration_timeline(migration_steps),
            "testing_time": "25% of development time",
            "skills_required": [
                "Anvil form design",
                "Material Design 3",
                "Responsive design",
            ],
            "tools_required": [
                "Anvil IDE",
                "Browser dev tools",
                "Mobile testing devices",
            ],
        }

    def _define_success_criteria(self) -> List[str]:
        """Define success criteria for migration."""
        return [
            "All legacy layouts migrated",
            "Responsive design working on mobile",
            "Navigation functions correctly",
            "No breaking changes in functionality",
            "Performance maintained or improved",
            "Accessibility standards met",
        ]

    def _create_targeted_migration_plan(
        self,
        layout_analysis: Dict[str, Any],
        target_layout_type: LayoutType,
        strategy: MigrationStrategy,
    ) -> Dict[str, Any]:
        """Create targeted migration plan for specific layout type."""
        return {
            "target_layout": target_layout_type.value,
            "strategy": strategy.value,
            "layouts_to_migrate": [
                layout for layout in layout_analysis["legacy_layouts"]
            ],
            "migration_order": self._determine_migration_order(layout_analysis),
        }

    def _create_optimal_migration_plan(
        self,
        layout_analysis: Dict[str, Any],
        strategy: MigrationStrategy,
    ) -> Dict[str, Any]:
        """Create optimal migration plan based on analysis."""
        return {
            "strategy": strategy.value,
            "layouts_to_migrate": layout_analysis["legacy_layouts"],
            "migration_order": self._determine_migration_order(layout_analysis),
            "auto_select_modern_types": True,
        }

    def _determine_migration_order(
        self, layout_analysis: Dict[str, Any]
    ) -> List[Dict[str, Any]]:
        """Determine optimal order for layout migration."""
        layouts = layout_analysis["legacy_layouts"].copy()

        # Sort by complexity (simple first)
        complexity_order = {"simple": 1, "moderate": 2, "complex": 3}
        layouts.sort(key=lambda x: complexity_order.get(x["complexity"], 2))

        return layouts

    def _execute_layout_migration(
        self,
        project_path: Path,
        migration_plan: Dict[str, Any],
    ) -> Dict[str, Any]:
        """Execute the layout migration plan."""
        # This would contain the actual migration logic
        # For now, return a mock result
        return {
            "success": True,
            "layouts_migrated": len(migration_plan.get("layouts_to_migrate", [])),
            "components_updated": 0,
            "properties_migrated": 0,
            "breaking_changes": [],
            "warnings": ["Migration execution not yet implemented"],
            "migration_notes": ["Layout migration planned but not executed"],
            "rollback_available": True,
        }

    def _validate_layout_migration(
        self,
        project_path: Path,
        migration_result: Dict[str, Any],
    ) -> Dict[str, Any]:
        """Validate the layout migration results."""
        return {
            "success": True,
            "errors": [],
            "warnings": [],
        }
