-- Chattyness Admin Restore Props Function
-- PostgreSQL 18
--
-- Admin function to restore missing essential props for users.
-- Load via: psql -f schema/functions/003_admin_restore_props.sql

\set ON_ERROR_STOP on

BEGIN;

-- =============================================================================
-- Restore Essential Props for a Single User
-- =============================================================================
-- Restores missing face-tagged server props to a user's inventory and fixes
-- any broken avatar slot references.
--
-- Usage: SELECT * FROM auth.restore_essential_props('username');
-- =============================================================================

CREATE OR REPLACE FUNCTION auth.restore_essential_props(p_username TEXT)
RETURNS TABLE(
    action TEXT,
    prop_slug TEXT,
    inventory_id UUID
) AS $$
DECLARE
    v_user_id UUID;
    v_prop RECORD;
    v_inventory_id UUID;
    v_avatar_id UUID;
BEGIN
    -- Get user ID
    SELECT id INTO v_user_id FROM auth.users WHERE username = p_username;
    IF v_user_id IS NULL THEN
        RAISE EXCEPTION 'User not found: %', p_username;
    END IF;

    -- For each face-tagged server prop
    FOR v_prop IN
        SELECT id, name, asset_path, default_layer, default_emotion, default_position, slug,
               is_transferable, is_portable, is_droppable
        FROM server.props
        WHERE tags @> ARRAY['face'] AND is_active = true
    LOOP
        -- Check if user already has this prop
        SELECT inv.id INTO v_inventory_id
        FROM auth.inventory inv
        WHERE inv.user_id = v_user_id AND inv.server_prop_id = v_prop.id;

        IF v_inventory_id IS NULL THEN
            -- Insert missing prop
            INSERT INTO auth.inventory (
                user_id, server_prop_id, prop_name, prop_asset_path,
                layer, position, origin,
                is_transferable, is_portable, is_droppable
            )
            VALUES (
                v_user_id, v_prop.id, v_prop.name, v_prop.asset_path,
                v_prop.default_layer,
                CASE WHEN v_prop.default_layer IS NOT NULL THEN v_prop.default_position ELSE NULL END,
                'server_library',
                v_prop.is_transferable, v_prop.is_portable, v_prop.is_droppable
            )
            RETURNING id INTO v_inventory_id;

            action := 'restored';
            prop_slug := v_prop.slug;
            inventory_id := v_inventory_id;
            RETURN NEXT;
        ELSE
            action := 'exists';
            prop_slug := v_prop.slug;
            inventory_id := v_inventory_id;
            RETURN NEXT;
        END IF;
    END LOOP;

    -- Get the user's default avatar (slot 0)
    SELECT id INTO v_avatar_id FROM auth.avatars WHERE user_id = v_user_id AND slot_number = 0;

    IF v_avatar_id IS NOT NULL THEN
        -- Update avatar slots with correct inventory references where NULL
        UPDATE auth.avatars a
        SET
            l_skin_4 = COALESCE(a.l_skin_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'face'
            )),
            e_neutral_4 = COALESCE(a.e_neutral_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'neutral'
            )),
            e_happy_4 = COALESCE(a.e_happy_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'smile'
            )),
            e_sad_4 = COALESCE(a.e_sad_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'sad'
            )),
            e_angry_4 = COALESCE(a.e_angry_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'angry'
            )),
            e_surprised_4 = COALESCE(a.e_surprised_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'surprised'
            )),
            e_thinking_4 = COALESCE(a.e_thinking_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'thinking'
            )),
            e_laughing_4 = COALESCE(a.e_laughing_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'laughing'
            )),
            e_crying_4 = COALESCE(a.e_crying_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'crying'
            )),
            e_love_4 = COALESCE(a.e_love_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'love'
            )),
            e_confused_4 = COALESCE(a.e_confused_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'confused'
            )),
            e_sleeping_4 = COALESCE(a.e_sleeping_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'sleeping'
            )),
            e_wink_4 = COALESCE(a.e_wink_4, (
                SELECT inv.id FROM auth.inventory inv
                JOIN server.props sp ON inv.server_prop_id = sp.id
                WHERE inv.user_id = v_user_id AND sp.slug = 'wink'
            ))
        WHERE a.id = v_avatar_id;

        action := 'avatar_fixed';
        prop_slug := NULL;
        inventory_id := v_avatar_id;
        RETURN NEXT;
    END IF;
END;
$$ LANGUAGE plpgsql;

COMMENT ON FUNCTION auth.restore_essential_props(TEXT) IS
    'Restore missing essential (face-tagged) props to a user''s inventory and fix avatar slots';

-- =============================================================================
-- Restore Essential Props for All Users
-- =============================================================================
-- Batch operation to restore props for all users.
--
-- Usage: SELECT * FROM auth.restore_essential_props_all_users();
-- =============================================================================

CREATE OR REPLACE FUNCTION auth.restore_essential_props_all_users()
RETURNS TABLE(
    username TEXT,
    props_restored INTEGER
) AS $$
DECLARE
    v_user RECORD;
    v_count INTEGER;
BEGIN
    FOR v_user IN SELECT id, u.username FROM auth.users u LOOP
        SELECT COUNT(*) INTO v_count
        FROM auth.restore_essential_props(v_user.username)
        WHERE action = 'restored';

        IF v_count > 0 THEN
            username := v_user.username;
            props_restored := v_count;
            RETURN NEXT;
        END IF;
    END LOOP;
END;
$$ LANGUAGE plpgsql;

COMMENT ON FUNCTION auth.restore_essential_props_all_users() IS
    'Restore missing essential props for all users - returns users who had props restored';

COMMIT;