"""Fix schema drifts — VARCHAR lengths + missing tables.

Revision ID: 0135
Revises: 0134
Create Date: 2026-08-21
"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import UUID, JSONB

revision = "0135"
down_revision = "0134"
branch_labels = None
depends_on = None


def upgrade() -> None:
    # 1. Fix VARCHAR length mismatches (model defines longer than DB)
    # Drop notifications_legacy view first — it depends on notifications.type column
    op.execute("DROP VIEW IF EXISTS notifications_legacy CASCADE;")
    op.execute("ALTER TABLE contacts ALTER COLUMN status TYPE VARCHAR(30);")
    op.execute("ALTER TABLE notifications ALTER COLUMN type TYPE VARCHAR(100);")
    op.execute("ALTER TABLE notification_preferences ALTER COLUMN type_key TYPE VARCHAR(100);")

    # 2. Create missing table: forgejo_reported_errors (only if not exists)
    op.execute("""
        CREATE TABLE IF NOT EXISTS forgejo_reported_errors (
            id SERIAL PRIMARY KEY,
            dedup_key VARCHAR(64) NOT NULL UNIQUE,
            message TEXT NOT NULL,
            stack TEXT,
            forgejo_issue_number INTEGER,
            reported_at TIMESTAMPTZ DEFAULT now() NOT NULL,
            status VARCHAR(20) NOT NULL DEFAULT 'reported'
        )
    """)

    # 3. Create missing table: pgp_keys (only if not exists)
    op.execute("""
        CREATE TABLE IF NOT EXISTS pgp_keys (
            id UUID DEFAULT gen_random_uuid() NOT NULL PRIMARY KEY,
            tenant_id UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
            user_id UUID NOT NULL,
            key_id VARCHAR(255) NOT NULL,
            encrypted_private_key TEXT NOT NULL,
            public_key_armored TEXT NOT NULL
        )
    """)
    op.execute("CREATE INDEX IF NOT EXISTS ix_pgp_keys_user ON pgp_keys (user_id);")
    op.execute("ALTER TABLE pgp_keys ENABLE ROW LEVEL SECURITY;")
    op.execute("DROP POLICY IF EXISTS pgp_keys_tenant_isolation ON pgp_keys;")
    op.execute("CREATE POLICY pgp_keys_tenant_isolation ON pgp_keys USING (tenant_id::text = current_setting('app.current_tenant_id', true));")


def downgrade() -> None:
    op.drop_table("pgp_keys")
    op.drop_table("forgejo_reported_errors")
    op.execute("ALTER TABLE notification_preferences ALTER COLUMN type_key TYPE VARCHAR(20);")
    op.execute("ALTER TABLE notifications ALTER COLUMN type TYPE VARCHAR(20);")
    op.execute("ALTER TABLE contacts ALTER COLUMN status TYPE VARCHAR(20);")