"""Contact folder routes — CRUD, move contacts, reorder."""

from __future__ import annotations

import uuid

from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.ext.asyncio import AsyncSession

from app.core.db import get_db
from app.deps import require_permission
from app.schemas.contact_folder import (
    ContactFolderCreate,
    ContactFolderUpdate,
    MoveContactRequest,
)
from app.services import contact_folder_service

router = APIRouter(prefix="/api/v1/contact-folders", tags=["contact-folders"])


@router.get("")
async def list_folders(
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("contacts:read")),
):
    """List all contact folders for the current user."""
    tenant_id = uuid.UUID(current_user["tenant_id"])
    user_id = uuid.UUID(current_user["user_id"])
    return await contact_folder_service.list_folders(db, tenant_id, user_id)


@router.post("", status_code=status.HTTP_201_CREATED)
async def create_folder(
    body: ContactFolderCreate,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("contacts:write")),
):
    """Create a new contact folder."""
    tenant_id = uuid.UUID(current_user["tenant_id"])
    user_id = uuid.UUID(current_user["user_id"])
    return await contact_folder_service.create_folder(
        db, tenant_id, user_id, body.name, body.parent_id
    )


@router.put("/{folder_id}")
async def update_folder(
    folder_id: str,
    body: ContactFolderUpdate,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("contacts:write")),
):
    """Update a contact folder (name, parent, sort_order)."""
    tenant_id = uuid.UUID(current_user["tenant_id"])
    user_id = uuid.UUID(current_user["user_id"])
    data = body.model_dump(exclude_none=True)
    try:
        return await contact_folder_service.update_folder(
            db, tenant_id, user_id, folder_id, data
        )
    except ValueError as e:
        raise HTTPException(status_code=404, detail=str(e))


@router.delete("/{folder_id}", status_code=status.HTTP_204_NO_CONTENT)
async def delete_folder(
    folder_id: str,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("contacts:write")),
):
    """Delete a contact folder. Contacts are unassigned."""
    tenant_id = uuid.UUID(current_user["tenant_id"])
    user_id = uuid.UUID(current_user["user_id"])
    try:
        await contact_folder_service.delete_folder(db, tenant_id, user_id, folder_id)
    except ValueError as e:
        raise HTTPException(status_code=404, detail=str(e))


@router.put("/{folder_id}/reorder")
async def reorder_folders(
    folder_id: str,
    body: list[dict],
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("contacts:write")),
):
    """Batch reorder folders. Body: [{id, sort_order, parent_id?}, ...]."""
    tenant_id = uuid.UUID(current_user["tenant_id"])
    user_id = uuid.UUID(current_user["user_id"])
    await contact_folder_service.reorder_folders(db, tenant_id, user_id, body)
    return {"ok": True}


@router.put("/contacts/{contact_id}/move")
async def move_contact(
    contact_id: str,
    body: MoveContactRequest,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("contacts:write")),
):
    """Move a contact to a folder (or unassign with folder_id=null)."""
    tenant_id = uuid.UUID(current_user["tenant_id"])
    try:
        return await contact_folder_service.move_contact(
            db, tenant_id, contact_id, body.folder_id
        )
    except ValueError as e:
        raise HTTPException(status_code=404, detail=str(e))