"""Endpoints для проектов."""

import logging
from typing import Any

from fastapi import APIRouter, Depends, HTTPException, Query
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy import select, desc

from app.core.database import get_db
from app.core.security import get_current_user
from app.schemas.project import ProjectCreate, ProjectUpdate, ProjectResponse
from app.models.user import User
from app.models.project import Project

logger = logging.getLogger(__name__)
router = APIRouter(prefix="/api/projects", tags=["projects"])


@router.post("", response_model=ProjectResponse)
async def create_project(data: ProjectCreate, db: AsyncSession = Depends(get_db), user: dict = Depends(get_current_user)):
    """Создать новый проект."""
    
    project = Project(
        client_id=user["id"],
        title=data.title,
        description=data.description,
        category=data.category,
        required_skills=data.required_skills,
        budget_min=data.budget_min,
        budget_max=data.budget_max,
        deadline=data.deadline,
    )
    db.add(project)
    await db.commit()
    await db.refresh(project)
    
    return ProjectResponse(
        id=str(project.id),
        title=project.title,
        description=project.description,
        category=project.category,
        required_skills=project.required_skills,
        budget_min=float(project.budget_min) if project.budget_min else None,
        budget_max=float(project.budget_max) if project.budget_max else None,
        status=project.status,
        deadline=str(project.deadline) if project.deadline else None,
        created_at=str(project.created_at),
        updated_at=str(project.updated_at),
    )


@router.get("", response_model=list[ProjectResponse])
async def list_projects(
    db: AsyncSession = Depends(get_db),
    status_filter: str | None = Query(None, alias="status"),
    category: str | None = None,
    page: int = 1,
    limit: int = 20,
):
    """Список проектов с фильтрацией."""
    
    stmt = select(Project)
    
    if status_filter:
        stmt = stmt.where(Project.status == status_filter)
    if category:
        stmt = stmt.where(Project.category == category)
    
    stmt = stmt.order_by(desc(Project.created_at)).offset((page - 1) * limit).limit(limit)
    
    result = await db.execute(stmt)
    projects = result.scalars().all()
    
    return [ProjectResponse(
        id=str(p.id), title=p.title, description=p.description, category=p.category,
        required_skills=p.required_skills, budget_min=float(p.budget_min) if p.budget_min else None,
        budget_max=float(p.budget_max) if p.budget_max else None, status=p.status,
        deadline=str(p.deadline) if p.deadline else None, created_at=str(p.created_at), updated_at=str(p.updated_at),
    ) for p in projects]


@router.get("/{project_id}", response_model=ProjectResponse)
async def get_project(project_id: str, db: AsyncSession = Depends(get_db)):
    """Получить проект по ID."""
    
    result = await db.execute(select(Project).where(Project.id == project_id))
    project = result.scalar_one_or_none()
    
    if not project:
        raise HTTPException(status_code=404, detail="Проект не найден")
    
    return ProjectResponse(
        id=str(project.id), title=project.title, description=project.description, category=project.category,
        required_skills=project.required_skills, budget_min=float(project.budget_min) if project.budget_min else None,
        budget_max=float(project.budget_max) if project.budget_max else None, status=project.status,
        deadline=str(project.deadline) if project.deadline else None, created_at=str(project.created_at), updated_at=str(project.updated_at),
    )


@router.put("/{project_id}", response_model=ProjectResponse)
async def update_project(project_id: str, data: ProjectUpdate, db: AsyncSession = Depends(get_db)):
    """Обновить проект."""
    
    result = await db.execute(select(Project).where(Project.id == project_id))
    project = result.scalar_one_or_none()
    
    if not project:
        raise HTTPException(status_code=404, detail="Проект не найден")
    
    for field, value in data.model_dump(exclude_unset=True).items():
        setattr(project, field, value)
    
    await db.commit()
    await db.refresh(project)
    
    return ProjectResponse(
        id=str(project.id), title=project.title, description=project.description, category=project.category,
        required_skills=project.required_skills, budget_min=float(project.budget_min) if project.budget_min else None,
        budget_max=float(project.budget_max) if project.budget_max else None, status=project.status,
        deadline=str(project.deadline) if project.deadline else None, created_at=str(project.created_at), updated_at=str(project.updated_at),
    )