from fastapi import APIRouter, Depends, HTTPException
from models.project import Project
from models.user import User
from pydantic import BaseModel
from services.project_service import project_service

from routers.auth import get_current_user

router = APIRouter()


class CreateProjectRequest(BaseModel):
    title: str
    description: str = ""


class UpdateProjectRequest(BaseModel):
    title: str | None = None
    description: str | None = None


@router.get("/projects", response_model=list[Project])
async def get_all_projects(current_user: User = Depends(get_current_user)):
    """Получить все проекты текущего пользователя"""
    return project_service.get_all_projects(user_id=current_user.id)


@router.get("/projects/{project_id}", response_model=Project)
async def get_project(project_id: str, current_user: User = Depends(get_current_user)):
    """Получить проект по ID"""
    project = project_service.get_project(project_id)
    if not project:
        raise HTTPException(status_code=404, detail="Project not found")
    if project.user_id != current_user.id:
        raise HTTPException(status_code=403, detail="Access denied")
    return project


@router.post("/projects", response_model=Project, status_code=201)
async def create_project(
    request: CreateProjectRequest, current_user: User = Depends(get_current_user)
):
    """Создать новый проект"""
    return project_service.create_project(
        title=request.title,
        user_id=current_user.id,
        description=request.description,
    )


@router.put("/projects/{project_id}", response_model=Project)
async def update_project(
    project_id: str,
    request: UpdateProjectRequest,
    current_user: User = Depends(get_current_user),
):
    """Обновить проект"""
    project = project_service.get_project(project_id)
    if not project:
        raise HTTPException(status_code=404, detail="Project not found")
    if project.user_id != current_user.id:
        raise HTTPException(status_code=403, detail="Access denied")

    updated = project_service.update_project(
        project_id=project_id,
        title=request.title,
        description=request.description,
    )
    if not updated:
        raise HTTPException(status_code=404, detail="Project not found")
    return updated


@router.delete("/projects/{project_id}")
async def delete_project(
    project_id: str, current_user: User = Depends(get_current_user)
):
    """Удалить проект"""
    try:
        success = project_service.delete_project(project_id, current_user.id)
        if not success:
            raise HTTPException(status_code=404, detail="Project not found")
        return {"status": "deleted", "project_id": project_id}
    except ValueError as e:
        raise HTTPException(status_code=403, detail=str(e))