"""update profile settings schema in trigger

Revision ID: 20260428_0002
Revises: 20260428_0001
Create Date: 2026-04-28

"""

from alembic import op

revision = "20260428_0002"
down_revision = "20260428_0001"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.execute(
        """
        CREATE OR REPLACE FUNCTION public.initialize_profile_and_invite_code_on_signup()
        RETURNS trigger
        LANGUAGE plpgsql
        SECURITY DEFINER
        SET search_path = public
        AS $$
        DECLARE
            v_username text;
            v_invite_code text;
            v_referrer_id uuid;
            v_attempts int := 0;
            invite_code_value text;
        BEGIN
            v_username := 'user_' || substring(md5(new.id::text || clock_timestamp()::text || random()::text) from 1 for 6);

            INSERT INTO public.profiles (id, username, avatar_url, bio, settings)
            VALUES (
                new.id,
                v_username,
                null,
                null,
                jsonb_build_object(
                    'version', 1,
                    'preferences', jsonb_build_object(
                        'language', 'zh-CN',
                        'timezone', 'Asia/Shanghai',
                        'country', 'US'
                    ),
                    'privacy', jsonb_build_object(
                        'can_sell', false,
                        'profile_visibility', 'public'
                    ),
                    'notification', jsonb_build_object(
                        'allow_notifications', true,
                        'allow_vibration', true
                    ),
                    'divination_tutorial', jsonb_build_object(
                        'divination_entry_shown', false,
                        'auto_divination_shown', false,
                        'manual_divination_shown', false
                    )
                )
            )
            ON CONFLICT (id) DO NOTHING;

            LOOP
                BEGIN
                    v_invite_code := public.generate_invite_code();
                    INSERT INTO public.invite_codes (code, owner_id, status, used_count, max_uses, expires_at, reward_config)
                    VALUES (
                        v_invite_code,
                        new.id,
                        'active',
                        0,
                        NULL,
                        NULL,
                        '{}'::jsonb
                    );
                    EXIT;
                EXCEPTION WHEN unique_violation THEN
                    v_attempts := v_attempts + 1;
                    IF v_attempts >= 100 THEN
                        RAISE EXCEPTION 'Failed to generate unique invite code after 100 attempts';
                    END IF;
                END;
            END LOOP;

            invite_code_value := new.raw_user_meta_data ->> 'invite_code';
            IF invite_code_value IS NOT NULL AND length(invite_code_value) = 6 THEN
                invite_code_value := upper(invite_code_value);
                IF invite_code_value ~ '^[ABCDEFGHJKMNPQRSTUVWXYZ23456789]{6}$' THEN
                    UPDATE public.invite_codes
                    SET used_count = used_count + 1
                    WHERE code = invite_code_value
                        AND status = 'active'
                        AND (max_uses IS NULL OR used_count < max_uses)
                        AND (expires_at IS NULL OR expires_at > NOW())
                    RETURNING owner_id INTO v_referrer_id;

                    IF v_referrer_id IS NOT NULL THEN
                        UPDATE public.profiles
                        SET referred_by = v_referrer_id
                        WHERE id = new.id;
                    END IF;
                END IF;
            END IF;

            RETURN NEW;
        END;
        $$;
        """
    )


def downgrade() -> None:
    op.execute(
        """
        CREATE OR REPLACE FUNCTION public.initialize_profile_and_invite_code_on_signup()
        RETURNS trigger
        LANGUAGE plpgsql
        SECURITY DEFINER
        SET search_path = public
        AS $$
        DECLARE
            v_username text;
            v_invite_code text;
            v_referrer_id uuid;
            v_attempts int := 0;
            invite_code_value text;
        BEGIN
            v_username := 'user_' || substring(md5(new.id::text || clock_timestamp()::text || random()::text) from 1 for 6);

            INSERT INTO public.profiles (id, username, avatar_url, bio, settings)
            VALUES (
                new.id,
                v_username,
                null,
                null,
                jsonb_build_object(
                    'version', 1,
                    'preferences', jsonb_build_object(
                        'interface_language', 'zh-CN',
                        'ai_language', 'zh-CN',
                        'timezone', 'Asia/Shanghai',
                        'country', 'CN'
                    ),
                    'privacy', jsonb_build_object('profile_visibility', 'public'),
                    'notification', jsonb_build_object(
                        'allow_notifications', true,
                        'allow_vibration', true
                    )
                )
            )
            ON CONFLICT (id) DO NOTHING;

            LOOP
                BEGIN
                    v_invite_code := public.generate_invite_code();
                    INSERT INTO public.invite_codes (code, owner_id, status, used_count, max_uses, expires_at, reward_config)
                    VALUES (
                        v_invite_code,
                        new.id,
                        'active',
                        0,
                        NULL,
                        NULL,
                        '{}'::jsonb
                    );
                    EXIT;
                EXCEPTION WHEN unique_violation THEN
                    v_attempts := v_attempts + 1;
                    IF v_attempts >= 100 THEN
                        RAISE EXCEPTION 'Failed to generate unique invite code after 100 attempts';
                    END IF;
                END;
            END LOOP;

            invite_code_value := new.raw_user_meta_data ->> 'invite_code';
            IF invite_code_value IS NOT NULL AND length(invite_code_value) = 6 THEN
                invite_code_value := upper(invite_code_value);
                IF invite_code_value ~ '^[ABCDEFGHJKMNPQRSTUVWXYZ23456789]{6}$' THEN
                    UPDATE public.invite_codes
                    SET used_count = used_count + 1
                    WHERE code = invite_code_value
                        AND status = 'active'
                        AND (max_uses IS NULL OR used_count < max_uses)
                        AND (expires_at IS NULL OR expires_at > NOW())
                    RETURNING owner_id INTO v_referrer_id;

                    IF v_referrer_id IS NOT NULL THEN
                        UPDATE public.profiles
                        SET referred_by = v_referrer_id
                        WHERE id = new.id;
                    END IF;
                END IF;
            END IF;

            RETURN NEW;
        END;
        $$;
        """
    )