import uuid
from datetime import datetime, timezone

from sqlalchemy import Boolean, ForeignKey, String, Text, DateTime
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.dialects.postgresql import UUID, JSONB

from ..database import Base


class WordBankPackEntity(Base):
    __tablename__ = "word_bank_pack"

    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    name: Mapped[str] = mapped_column(Text, nullable=False)
    name_target: Mapped[str] = mapped_column(Text, nullable=False)
    description: Mapped[str] = mapped_column(Text, nullable=False)
    description_target: Mapped[str] = mapped_column(Text, nullable=False)
    source_lang: Mapped[str] = mapped_column(String(2), nullable=False)
    target_lang: Mapped[str] = mapped_column(String(2), nullable=False)
    proficiencies: Mapped[list] = mapped_column(JSONB, nullable=False, default=list)
    is_published: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        nullable=False,
        default=lambda: datetime.now(timezone.utc),
    )


class WordBankPackEntryEntity(Base):
    __tablename__ = "word_bank_pack_entry"

    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    pack_id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True),
        ForeignKey("word_bank_pack.id", ondelete="CASCADE"),
        nullable=False,
        index=True,
    )
    sense_id: Mapped[uuid.UUID | None] = mapped_column(
        UUID(as_uuid=True),
        ForeignKey("dictionary_sense.id", ondelete="SET NULL"),
        nullable=True,
        index=True,
    )
    surface_text: Mapped[str] = mapped_column(Text, nullable=False)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        nullable=False,
        default=lambda: datetime.now(timezone.utc),
    )


class WordBankPackFlashcardTemplateEntity(Base):
    __tablename__ = "word_bank_pack_flashcard_template"

    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    pack_entry_id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True),
        ForeignKey("word_bank_pack_entry.id", ondelete="CASCADE"),
        nullable=False,
        index=True,
    )
    prompt_text: Mapped[str] = mapped_column(Text, nullable=False)
    answer_text: Mapped[str] = mapped_column(Text, nullable=False)
    prompt_context_text: Mapped[str | None] = mapped_column(Text, nullable=True)
    answer_context_text: Mapped[str | None] = mapped_column(Text, nullable=True)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        nullable=False,
        default=lambda: datetime.now(timezone.utc),
    )