from sqlalchemy import Column, Integer, String, Boolean, ForeignKey, ARRAY, UniqueConstraint
from sqlalchemy.orm import DeclarativeBase

class Base(DeclarativeBase): pass

class Users(Base):
    __tablename__ = 'Users'
    UserID = Column(Integer, primary_key=True, autoincrement=True)
    Email = Column(String(166), nullable=False, unique=True)
    Hashed_password = Column(String(200), nullable=False)

class Students(Base):
    __tablename__ = 'Students'
    StudentID = Column(Integer, primary_key=True, autoincrement=True)
    Name = Column(String(155), nullable=False)
    Type = Column(String(60), nullable=False)
    Faculties = Column(String(70), nullable=False)
    Group = Column(String(20), nullable=False)
    Year = Column(Integer, nullable=False)
    Experience_specialty = Column(Boolean, nullable=False)
    Time = Column(ARRAY(String(3)), nullable=False)
    Soft_skills = Column(String(155), nullable=False)
    Link = Column(String(155), nullable=False)
    Email = Column(String(166), nullable=False)
    Phone_number = Column(String(16), nullable=False)

class Jobs(Base):
    __tablename__ = 'Jobs'
    JobID = Column(Integer, primary_key=True, autoincrement=True)
    UserID = Column(Integer, ForeignKey(
        "Users.UserID", ondelete="CASCADE"), nullable=False)
    Company_name = Column(String(155), nullable=False)
    Link_to_job = Column(String(155), nullable=True)
    Job_name = Column(String(155), nullable=False)
    Year = Column(String(1), nullable=False)
    Qualification = Column(Boolean, nullable=False)
    Salary_after_interview = Column(Boolean, nullable=False)
    Salary = Column(Integer, nullable=False)
    Email = Column(String(155), nullable=False)
    Archive = Column(Boolean, nullable=False)
    Responsibilities = Column(String(255), nullable=False)
    Time = Column(ARRAY(String), nullable=False)

class Hard_skills(Base):
    __tablename__ = 'Hard_skills'
    Hard_skillID = Column(Integer, primary_key=True, nullable=False, autoincrement=True)
    Title = Column(String, nullable=False, unique=True)

class StudentsHard_skills(Base):
    __tablename__ = 'StudentsHard_skills'

    StudentID = Column(Integer, ForeignKey(
        "Students.StudentID", onupdate="CASCADE", ondelete="CASCADE"), primary_key=True)
    Hard_skillID = Column(Integer, ForeignKey(
        "Hard_skills.Hard_skillID", onupdate="CASCADE", ondelete="CASCADE"), primary_key=True)
        
class JobsHard_skills(Base):
    __tablename__ = 'JobsHard_skills'

    JobID = Column(Integer, ForeignKey(
        "Jobs.JobID", onupdate="CASCADE", ondelete="CASCADE"), primary_key=True)
    Hard_skillID = Column(Integer, ForeignKey(
        "Hard_skills.Hard_skillID", onupdate="CASCADE", ondelete="CASCADE"), primary_key=True)
    
class Responses(Base):
    __tablename__ = 'Responses'
    
    ResponseID = Column(Integer, primary_key=True, autoincrement=True)
    StudentID = Column(Integer, ForeignKey(
        "Students.StudentID", onupdate="CASCADE", ondelete="CASCADE"))
    JobID = Column(Integer, ForeignKey(
        "Jobs.JobID", onupdate="CASCADE", ondelete="CASCADE"))
    Status = Column(String(50), nullable=True)
    Comment = Column(String(700), nullable=True)
    Link = Column(String(155), nullable=True)
    
    __table_args__ = (
        UniqueConstraint('StudentID', 'JobID', name='unique_student_job_for_responses'),
    )
    
class Matches(Base):
    __tablename__ = 'Matches'
    StudentID = Column(Integer, ForeignKey(
        "Students.StudentID", onupdate="CASCADE", ondelete="CASCADE"), primary_key=True)
    JobID = Column(Integer, ForeignKey(
        "Jobs.JobID", onupdate="CASCADE", ondelete="CASCADE"), primary_key=True)
    Match = Column(Integer, nullable=False)