from sqlalchemy import create_engine, Column, Integer, String, Boolean, Numeric, Date, ForeignKey
from sqlalchemy.orm import relationship, sessionmaker
from sqlalchemy.ext.declarative import declarative_base

Base = declarative_base()
engine = create_engine('sqlite:///database.db', echo=True)
SessionLocal = sessionmaker(bind=engine)

def get_db_connection():
    """
    Retorna uma nova sessão do banco de dados
    """
    return SessionLocal()

def execute_query(query, params=None):
    """
    Executa uma query usando SQLAlchemy
    """
    session = get_db_connection()
    try:
        result = session.execute(query, params)
        session.commit()
        return result
    except Exception as e:
        session.rollback()
        raise e
    finally:
        session.close()

class Militante(Base):
    __tablename__ = 'militantes'
    
    id = Column(Integer, primary_key=True, autoincrement=True)
    nome = Column(String(100), nullable=False)
    cpf = Column(String(14), unique=True)
    email = Column(String(100), unique=True)
    telefone = Column(String(15))
    endereco = Column(String(255))
    filiado = Column(Boolean, default=False)

    cotas_mensais = relationship("CotaMensal", back_populates="militante")
    pagamentos = relationship("Pagamento", back_populates="militante")
    materiais_vendidos = relationship("MaterialVendido", back_populates="militante")
    vendas_jornais = relationship("VendaJornalAvulso", back_populates="militante")
    assinaturas = relationship("AssinaturaAnual", back_populates="militante")

class CotaMensal(Base):
    __tablename__ = 'cotas_mensais'
    
    id = Column(Integer, primary_key=True, autoincrement=True)
    militante_id = Column(Integer, ForeignKey('militantes.id'))
    valor_antigo = Column(Numeric(10, 2), nullable=False)
    valor_novo = Column(Numeric(10, 2), nullable=False)
    data_alteracao = Column(Date, nullable=False)

    militante = relationship("Militante", back_populates="cotas_mensais")

class TipoPagamento(Base):
    __tablename__ = 'tipos_pagamento'
    
    id = Column(Integer, primary_key=True, autoincrement=True)
    descricao = Column(String(100), nullable=False)

    pagamentos = relationship("Pagamento", back_populates="tipo_pagamento")

class Pagamento(Base):
    __tablename__ = 'pagamentos'
    
    id = Column(Integer, primary_key=True, autoincrement=True)
    militante_id = Column(Integer, ForeignKey('militantes.id'))
    tipo_pagamento_id = Column(Integer, ForeignKey('tipos_pagamento.id'))
    valor = Column(Numeric(10, 2), nullable=False)
    data_pagamento = Column(Date, nullable=False)

    militante = relationship("Militante", back_populates="pagamentos")
    tipo_pagamento = relationship("TipoPagamento", back_populates="pagamentos")

class TipoMaterial(Base):
    __tablename__ = 'tipos_materiais'
    
    id = Column(Integer, primary_key=True, autoincrement=True)
    descricao = Column(String(100), nullable=False)

    materiais_vendidos = relationship("MaterialVendido", back_populates="tipo_material")
    assinaturas = relationship("AssinaturaAnual", back_populates="tipo_material")

class MaterialVendido(Base):
    __tablename__ = 'materiais_vendidos'
    
    id = Column(Integer, primary_key=True, autoincrement=True)
    militante_id = Column(Integer, ForeignKey('militantes.id'))
    tipo_material_id = Column(Integer, ForeignKey('tipos_materiais.id'))
    descricao = Column(String(255), nullable=False)
    valor = Column(Numeric(10, 2), nullable=False)
    data_venda = Column(Date, nullable=False)

    militante = relationship("Militante", back_populates="materiais_vendidos")
    tipo_material = relationship("TipoMaterial", back_populates="materiais_vendidos")

class VendaJornalAvulso(Base):
    __tablename__ = 'vendas_jornais_avulsos'
    
    id = Column(Integer, primary_key=True, autoincrement=True)
    militante_id = Column(Integer, ForeignKey('militantes.id'))
    quantidade = Column(Integer, nullable=False)
    valor_total = Column(Numeric(10, 2), nullable=False)
    data_venda = Column(Date, nullable=False)

    militante = relationship("Militante", back_populates="vendas_jornais")

class AssinaturaAnual(Base):
    __tablename__ = 'assinaturas_anuais'
    
    id = Column(Integer, primary_key=True, autoincrement=True)
    militante_id = Column(Integer, ForeignKey('militantes.id'))
    tipo_material_id = Column(Integer, ForeignKey('tipos_materiais.id'))
    quantidade = Column(Integer, nullable=False)
    valor_total = Column(Numeric(10, 2), nullable=False)
    data_inicio = Column(Date, nullable=False)
    data_fim = Column(Date, nullable=False)

    militante = relationship("Militante", back_populates="assinaturas")
    tipo_material = relationship("TipoMaterial", back_populates="assinaturas")

class Setor(Base):
    __tablename__ = 'setores'
    
    id = Column(Integer, primary_key=True, autoincrement=True)
    nome = Column(String(100), nullable=False)

    relatorios_cotas = relationship("RelatorioCotasMensais", back_populates="setor")
    relatorios_vendas = relationship("RelatorioVendasMateriais", back_populates="setor")

class ComiteCentral(Base):
    __tablename__ = 'comites_centrais'
    
    id = Column(Integer, primary_key=True, autoincrement=True)
    nome = Column(String(100), nullable=False)

    relatorios_cotas = relationship("RelatorioCotasMensais", back_populates="comite")
    relatorios_vendas = relationship("RelatorioVendasMateriais", back_populates="comite")

class RelatorioCotasMensais(Base):
    __tablename__ = 'relatorio_cotas_mensais'
    
    id = Column(Integer, primary_key=True, autoincrement=True)
    setor_id = Column(Integer, ForeignKey('setores.id'))
    comite_id = Column(Integer, ForeignKey('comites_centrais.id'))
    total_cotas = Column(Numeric(10, 2), nullable=False)
    data_relatorio = Column(Date, nullable=False)

    setor = relationship("Setor", back_populates="relatorios_cotas")
    comite = relationship("ComiteCentral", back_populates="relatorios_cotas")

class RelatorioVendasMateriais(Base):
    __tablename__ = 'relatorio_vendas_materiais'
    
    id = Column(Integer, primary_key=True, autoincrement=True)
    setor_id = Column(Integer, ForeignKey('setores.id'))
    comite_id = Column(Integer, ForeignKey('comites_centrais.id'))
    total_vendas = Column(Numeric(10, 2), nullable=False)
    data_relatorio = Column(Date, nullable=False)

    setor = relationship("Setor", back_populates="relatorios_vendas")
    comite = relationship("ComiteCentral", back_populates="relatorios_vendas")

Base.metadata.create_all(engine)