"""Enterprise patterns mutations - complete implementation showcase."""

import fraiseql
from fraiseql.auth import requires_auth, requires_permission

from .models import (
    # Error types
    CreateOrganizationError,
    # Create inputs
    CreateOrganizationInput,
    # NOOP types
    CreateOrganizationNoop,
    # Success types
    CreateOrganizationSuccess,
    CreateProjectError,
    CreateProjectInput,
    CreateProjectNoop,
    CreateProjectSuccess,
    CreateTaskError,
    CreateTaskInput,
    CreateTaskNoop,
    CreateTaskSuccess,
    CreateUserError,
    CreateUserInput,
    CreateUserNoop,
    CreateUserSuccess,
    UpdateProjectError,
    # Update inputs
    UpdateProjectInput,
    UpdateProjectNoop,
    UpdateProjectSuccess,
)

# Organization Management Mutations


@fraiseql.mutation(function="app.create_organization")
class CreateOrganization:
    """Create organization with enterprise validation.

    Enterprise features:
    - Automatic identifier generation (ORG-2024-ACME-001)
    - Tax ID validation and normalization
    - Industry classification validation
    - Compliance checks for business registration
    - NOOP handling for duplicate organizations
    """

    input: CreateOrganizationInput
    success: CreateOrganizationSuccess
    error: CreateOrganizationError
    noop: CreateOrganizationNoop


# User Management Mutations


@fraiseql.mutation(function="app.create_user")
class CreateUser:
    """Create user with comprehensive onboarding.

    Multi-layer validation:
    1. GraphQL: Email format, name length, phone format
    2. App: Email uniqueness check, organization validation
    3. Core: Role assignment validation, compliance checks
    4. Database: Constraint validation, foreign key integrity

    NOOP scenarios:
    - Email already exists in organization
    - User invitation already sent
    - Organization at user capacity
    """

    input: CreateUserInput
    success: CreateUserSuccess
    error: CreateUserError
    noop: CreateUserNoop


# Project Management Mutations


@fraiseql.mutation(function="app.create_project")
@requires_auth
class CreateProject:
    """Create project with team coordination.

    Complex business logic:
    - Project name uniqueness within organization
    - Budget validation against organization limits
    - Team member availability checking
    - Timeline validation (start < due date)
    - Template application with customization
    - Initial task creation from templates

    NOOP handling:
    - Project name conflicts
    - Budget exceeds organizational limits
    - Required team members unavailable
    """

    input: CreateProjectInput
    success: CreateProjectSuccess
    error: CreateProjectError
    noop: CreateProjectNoop


@fraiseql.mutation(function="app.update_project")
@requires_auth
class UpdateProject:
    """Update project with change management.

    Enterprise features:
    - Optimistic locking with version checking
    - Field-level change detection and auditing
    - Status transition validation (draft → active → completed)
    - Team notification on significant changes
    - Budget change approval workflows
    - Timeline impact analysis

    NOOP scenarios:
    - No actual changes detected
    - Version conflict (concurrent modifications)
    - Status transition not allowed
    - Insufficient permissions for specific fields
    """

    input: UpdateProjectInput
    success: UpdateProjectSuccess
    error: UpdateProjectError
    noop: UpdateProjectNoop


# Task Management Mutations


@fraiseql.mutation(function="app.create_task")
@requires_auth
class CreateTask:
    """Create task with dependency management.

    Cross-entity validation:
    - Project exists and accepts new tasks
    - Assignee is member of project team
    - Parent task allows subtasks
    - Timeline consistency with project schedule
    - Workload validation for assignee

    Business rules:
    - Task titles unique within project
    - Estimated hours reasonable for task type
    - Due date before project due date
    - Assignee has necessary skills/permissions

    NOOP scenarios:
    - Duplicate task title in project
    - Assignee at capacity
    - Parent task already completed
    - Project in completed/cancelled status
    """

    input: CreateTaskInput
    success: CreateTaskSuccess
    error: CreateTaskError
    noop: CreateTaskNoop


# Administrative Mutations


@fraiseql.mutation(function="app.archive_organization")
@requires_permission("admin")
class ArchiveOrganization:
    """Archive organization with cascade handling.

    Enterprise considerations:
    - Data retention policy compliance
    - Active project handling (complete/transfer)
    - User account deactivation
    - Billing and subscription cleanup
    - Audit log preservation
    - External integration cleanup

    This demonstrates complex business logic with
    multiple entity coordination and compliance requirements.
    """

    organization_id: str  # UUID as string for GraphQL
    archive_reason: str
    transfer_data_to: str | None = None  # UUID of receiving org

    # Return type would be defined similarly to above patterns
    # success: ArchiveOrganizationSuccess
    # error: ArchiveOrganizationError
    # noop: ArchiveOrganizationNoop


# Bulk Operations


@fraiseql.mutation(function="app.bulk_create_users")
@requires_permission("user_admin")
class BulkCreateUsers:
    """Bulk user creation with transaction handling.

    Enterprise bulk operation features:
    - All-or-nothing transaction semantics
    - Partial success handling with detailed reporting
    - Duplicate detection across the batch
    - Email validation and normalization
    - Welcome email batching for performance
    - Role assignment validation for all users
    - Organization capacity checking

    This demonstrates how enterprise patterns scale
    to bulk operations while maintaining data integrity.
    """

    users: list[CreateUserInput]
    send_welcome_emails: bool = True
    fail_on_any_error: bool = False  # vs. best-effort processing

    # Would return detailed results for each user
    # success: BulkCreateUsersSuccess  # with per-user results
    # error: BulkCreateUsersError      # with per-user errors
    # noop: BulkCreateUsersNoop        # if no users could be created


# Cross-Entity Operations


@fraiseql.mutation(function="app.transfer_project")
@requires_permission("project_admin")
class TransferProject:
    """Transfer project between organizations.

    Complex cross-entity validation:
    - Source organization ownership verification
    - Destination organization capacity checking
    - User access migration (preserve/revoke/transfer)
    - Data compliance verification (GDPR, data residency)
    - Billing adjustment calculations
    - Integration webhook notifications
    - Audit trail maintenance across organizations

    NOOP scenarios:
    - Project already in destination organization
    - Destination organization cannot accept project type
    - Active billing disputes prevent transfer
    - Compliance restrictions block transfer

    This demonstrates the most complex enterprise scenarios
    with multi-tenant considerations and compliance requirements.
    """

    project_id: str  # UUID
    destination_organization_id: str  # UUID
    transfer_team_members: bool = True
    preserve_access_for_days: int | None = 30
    compliance_approval_token: str | None = None

    # Would include comprehensive transfer results
    # success: TransferProjectSuccess
    # error: TransferProjectError
    # noop: TransferProjectNoop
