from flask_sqlalchemy import SQLAlchemy
from datetime import datetime

db = SQLAlchemy()

class Candidate(db.Model):
    __tablename__ = 'candidates'

    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(200), nullable=False)
    email = db.Column(db.String(200))
    phone = db.Column(db.String(50))
    score = db.Column(db.Float, default=0)
    status = db.Column(db.String(50), default='pending')  # pending, shortlisted, rejected, scheduled
    job_title = db.Column(db.String(200))
    skills_matched = db.Column(db.Text)    # JSON list
    skills_missing = db.Column(db.Text)    # JSON list
    reasoning = db.Column(db.Text)
    resume_filename = db.Column(db.String(300))
    interview_scheduled = db.Column(db.String(100))
    created_at = db.Column(db.DateTime, default=datetime.utcnow)

    def __repr__(self):
        return f'<Candidate {self.name} | {self.score}%>'

class JobDescription(db.Model):
    __tablename__ = 'job_descriptions'

    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(200))
    description = db.Column(db.Text)
    threshold = db.Column(db.Integer, default=70)
    created_at = db.Column(db.DateTime, default=datetime.utcnow)