from fastapi import APIRouter, HTTPException
import MySQLdb
from database import get_db_connection

router = APIRouter()

@router.get("/{project_id}")
def read_long_project(project_id: int):
    conn = get_db_connection()
    if not conn:
        raise HTTPException(status_code=503, detail="Service de base de données indisponible.")

    try:
        with conn.cursor(MySQLdb.cursors.DictCursor) as cursor:
            sql = """
                SELECT
                    p.id,
                    p.title,
                    p.long_description,
                    p.short_description,
                    p.school,
                    p.repo_link,
                    p.nb_image,
                    p.image_name,
                    p.beginning_year,
                    p.end_year,
                    GROUP_CONCAT(DISTINCT s.name ORDER BY s.name SEPARATOR ', ') AS skills
                FROM
                    projects p
                LEFT JOIN
                    project_skills ps ON p.id = ps.project_id
                LEFT JOIN
                    skills s ON ps.skill_id = s.id
                WHERE p.id = %s
                GROUP BY p.id;
            """
            cursor.execute(sql, (project_id,))
            result = cursor.fetchone()

            if not result:
                raise HTTPException(status_code=404, detail="Projet non trouvé.")

            if result['skills']:
                result['skills'] = result['skills'].split(', ')
            else:
                result['skills'] = []

            return result

    except MySQLdb.Error as e:
        raise HTTPException(status_code=500, detail=f"Erreur lors de la requête: {e}")
    finally:
        conn.close()