"""Wiki plugin — articles, categories, versions (H-WIKI, H-VER).

Revision ID: 0126
Revises: 0125
"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import JSONB, UUID as PGUUID

revision = "0126"
down_revision = "0125"
branch_labels = None
depends_on = None

def upgrade() -> None:
    op.create_table(
        "wiki_categories",
        sa.Column("id", PGUUID(as_uuid=True), primary_key=True),
        sa.Column("tenant_id", PGUUID(as_uuid=True), nullable=False),
        sa.Column("owner_id", PGUUID(as_uuid=True), nullable=True),
        sa.Column("name", sa.String(200), nullable=False),
        sa.Column("slug", sa.String(200), nullable=False),
        sa.Column("description", sa.Text, nullable=True),
        sa.Column("parent_id", PGUUID(as_uuid=True), nullable=True),
        sa.Column("sort_order", sa.Integer, nullable=False, server_default="0"),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
    )
    op.create_foreign_key("fk_wiki_cat_parent", "wiki_categories", "wiki_categories", ["parent_id"], ["id"], ondelete="SET NULL")
    op.create_index("ix_wiki_cat_tenant", "wiki_categories", ["tenant_id"])
    op.create_index("ix_wiki_cat_tenant_slug", "wiki_categories", ["tenant_id", "slug"])

    op.create_table(
        "wiki_articles",
        sa.Column("id", PGUUID(as_uuid=True), primary_key=True),
        sa.Column("tenant_id", PGUUID(as_uuid=True), nullable=False),
        sa.Column("owner_id", PGUUID(as_uuid=True), nullable=True),
        sa.Column("title", sa.String(300), nullable=False),
        sa.Column("slug", sa.String(300), nullable=False),
        sa.Column("content", sa.Text, nullable=False, server_default=""),
        sa.Column("content_html", sa.Text, nullable=True),
        sa.Column("summary", sa.Text, nullable=True),
        sa.Column("category_id", PGUUID(as_uuid=True), nullable=True),
        sa.Column("tags", JSONB, nullable=False, server_default="[]"),
        sa.Column("status", sa.String(20), nullable=False, server_default="draft"),
        sa.Column("entity_links", JSONB, nullable=False, server_default="[]"),
        sa.Column("version", sa.Integer, nullable=False, server_default="1"),
        sa.Column("published_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
    )
    op.create_foreign_key("fk_wiki_art_category", "wiki_articles", "wiki_categories", ["category_id"], ["id"], ondelete="SET NULL")
    op.create_index("ix_wiki_art_tenant", "wiki_articles", ["tenant_id"])
    op.create_index("ix_wiki_art_tenant_category", "wiki_articles", ["tenant_id", "category_id"])
    op.create_index("ix_wiki_art_tenant_slug", "wiki_articles", ["tenant_id", "slug"])
    op.create_index("ix_wiki_art_tenant_status", "wiki_articles", ["tenant_id", "status"])

    op.create_table(
        "wiki_article_versions",
        sa.Column("id", PGUUID(as_uuid=True), primary_key=True),
        sa.Column("tenant_id", PGUUID(as_uuid=True), nullable=False),
        sa.Column("article_id", PGUUID(as_uuid=True), nullable=False),
        sa.Column("version", sa.Integer, nullable=False),
        sa.Column("title", sa.String(300), nullable=False),
        sa.Column("content", sa.Text, nullable=False),
        sa.Column("edited_by", PGUUID(as_uuid=True), nullable=True),
        sa.Column("edit_comment", sa.Text, nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
    )
    op.create_foreign_key("fk_wiki_ver_article", "wiki_article_versions", "wiki_articles", ["article_id"], ["id"], ondelete="CASCADE")
    op.create_index("ix_wiki_ver_tenant_article", "wiki_article_versions", ["tenant_id", "article_id"])
    op.create_index("ix_wiki_ver_tenant_version", "wiki_article_versions", ["tenant_id", "article_id", "version"])

def downgrade() -> None:
    op.drop_table("wiki_article_versions")
    op.drop_table("wiki_articles")
    op.drop_table("wiki_categories")