from sqlalchemy import (
    Boolean,
    Column,
    Integer,
    String,
    DateTime,
    Text,
    ForeignKey,
    Enum,
    Date,
)
from sqlalchemy.orm import relationship
from sqlalchemy.sql import func
from app.db.base import Base
import enum


class ServiceType(enum.Enum):
    SUNDAY_SERVICE = "sunday_service"
    BIBLE_STUDY = "bible_study"
    PRAYER_MEETING = "prayer_meeting"
    YOUTH_SERVICE = "youth_service"
    WOMEN_MEETING = "women_meeting"
    MEN_MEETING = "men_meeting"
    SPECIAL_SERVICE = "special_service"
    OTHER = "other"


class AttendanceStatus(enum.Enum):
    PRESENT = "present"
    ABSENT = "absent"
    LATE = "late"
    EXCUSED = "excused"


class Service(Base):
    __tablename__ = "services"

    id = Column(Integer, primary_key=True, index=True)
    title = Column(String, nullable=False)
    description = Column(Text, nullable=True)
    service_type = Column(Enum(ServiceType), nullable=False)
    service_date = Column(Date, nullable=False)
    start_time = Column(DateTime, nullable=False)
    end_time = Column(DateTime, nullable=True)
    location = Column(String, nullable=True)
    minister_id = Column(Integer, ForeignKey("users.id"), nullable=True)
    is_active = Column(Boolean, default=True)
    created_by = Column(Integer, ForeignKey("users.id"), nullable=False)
    created_at = Column(DateTime, nullable=False, default=func.now())

    # Relationships
    minister = relationship("User", foreign_keys=[minister_id])
    creator = relationship("User", foreign_keys=[created_by])
    attendance_records = relationship(
        "AttendanceRecord", back_populates="service", cascade="all, delete-orphan"
    )


class AttendanceRecord(Base):
    __tablename__ = "attendance_records"

    id = Column(Integer, primary_key=True, index=True)
    service_id = Column(Integer, ForeignKey("services.id"), nullable=False)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    status = Column(Enum(AttendanceStatus), default=AttendanceStatus.PRESENT)
    check_in_time = Column(DateTime, nullable=True)
    check_out_time = Column(DateTime, nullable=True)
    notes = Column(Text, nullable=True)
    recorded_by = Column(Integer, ForeignKey("users.id"), nullable=False)
    recorded_at = Column(DateTime, nullable=False, default=func.now())

    # Relationships
    service = relationship("Service", back_populates="attendance_records")
    user = relationship("User", foreign_keys=[user_id])
    recorder = relationship("User", foreign_keys=[recorded_by])


class AttendanceGoal(Base):
    __tablename__ = "attendance_goals"

    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    service_type = Column(Enum(ServiceType), nullable=False)
    target_percentage = Column(Integer, default=80)  # Target attendance percentage
    start_date = Column(Date, nullable=False)
    end_date = Column(Date, nullable=False)
    is_active = Column(Boolean, default=True)
    created_at = Column(DateTime, nullable=False, default=func.now())

    # Relationships
    user = relationship("User")


class FamilyGroup(Base):
    __tablename__ = "family_groups"

    id = Column(Integer, primary_key=True, index=True)
    name = Column(String, nullable=False)
    head_of_family_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    description = Column(Text, nullable=True)
    created_at = Column(DateTime, nullable=False, default=func.now())

    # Relationships
    head_of_family = relationship("User")
    members = relationship(
        "FamilyMember", back_populates="family_group", cascade="all, delete-orphan"
    )


class FamilyMember(Base):
    __tablename__ = "family_members"

    id = Column(Integer, primary_key=True, index=True)
    family_group_id = Column(Integer, ForeignKey("family_groups.id"), nullable=False)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=True)
    name = Column(String, nullable=False)  # For non-registered family members
    relationship = Column(String, nullable=True)  # spouse, child, parent, etc.
    date_of_birth = Column(Date, nullable=True)
    is_registered_user = Column(Boolean, default=False)

    # Relationships
    family_group = relationship("FamilyGroup", back_populates="members")
    user = relationship("User")