<script lang="ts">
    import { untrack } from 'svelte';
    interface Props {
        /** @type {import('./$types').PageData} */
        data: any;
    }
    let { data }: Props = $props();

    let log_lvl: number = $state(1);

    // *** Import Svelte specific
    // import { page } from '$app/state';
    import { browser } from '$app/environment';

    // *** Import other supporting libraries
    import { db_events } from '$lib/ae_events/db_events';
    import {
        idaa_loc,
        idaa_sess,
        idaa_slct,
        idaa_trig
    } from '$lib/stores/ae_idaa_stores';
    import { ae_loc, ae_api } from '$lib/stores/ae_stores';
    import { events_func } from '$lib/ae_events_functions';

    import Element_data_store from '$lib/elements/element_data_store_v3.svelte';
    import Comp__event_obj_qry from './ae_idaa_comp__event_obj_qry.svelte';
    import Comp__event_obj_li_wrapper from './ae_idaa_comp__event_obj_li_wrapper.svelte';

    if (browser) {
        $idaa_slct.event_id = null;
        window.parent.postMessage({ event_id: null }, '*');

        // Use versioning instead of boolean to avoid loops
        if ($idaa_loc.recovery_meetings.search_version === undefined) {
            $idaa_loc.recovery_meetings.search_version = 0;
        }
        $idaa_loc.recovery_meetings.search_version++;
    }

    let event_id_li: Array<string> = $state([]);
    let search_debounce_timer: any = null;
    let last_search_id = 0;

    // Standardized Reactive Search Pattern (Aether UI V3)
    // This effect manages the orchestration between UI state and data fetching.
    $effect(() => {
        // 1. Reactive Dependencies
        const account_id = $ae_loc.account_id;
        if (!account_id) return; // Wait for account context

        // Track filters and the search version (trigger)
        const qry_params = {
            v: $idaa_loc.recovery_meetings.search_version,
            str: $idaa_loc.recovery_meetings.qry__fulltext_str,
            phys: $idaa_loc.recovery_meetings.qry__physical,
            virt: $idaa_loc.recovery_meetings.qry__virtual,
            type: $idaa_loc.recovery_meetings.qry__type,
            limit: $idaa_loc.recovery_meetings.qry__limit,
            order: $idaa_loc.recovery_meetings.qry__order_by,
            remote: $idaa_loc.recovery_meetings.qry__remote_first
        };

        // 2. Debounce Logic
        if (search_debounce_timer) clearTimeout(search_debounce_timer);
        search_debounce_timer = setTimeout(() => {
            // 3. Execution (Untracked to prevent loops)
            untrack(() => {
                handle_search_refresh();
            });
        }, 250);

        return () => {
            if (search_debounce_timer) clearTimeout(search_debounce_timer);
        };
    });

    /**
     * SWR (Stale-While-Revalidate) Search Orchestrator
     *
     * GOAL: Render matching meetings in < 50ms, then update with perfect server data.
     */
    async function handle_search_refresh() {
        const current_search_id = ++last_search_id;
        const account_id = $ae_loc.account_id;
        const remote_first = $idaa_loc.recovery_meetings.qry__remote_first;

        if (!account_id) return;

        if (log_lvl)
            console.log(
                `[Search #${current_search_id}] Refreshing recovery meetings (remote_first=${remote_first}) for account: ${account_id}...`
            );

        $idaa_sess.recovery_meetings.qry__status = 'loading';

        // If 'Remote First' is toggled (Admin only), we clear results immediately to show fresh state.
        if (remote_first) {
            event_id_li = [];
        }

        // Snapshot parameters to ensure the Fast Path and Revalidation are using the same criteria.
        const qry_str = ($idaa_loc.recovery_meetings.qry__fulltext_str ?? '')
            .toLowerCase()
            .trim();
        const qry_physical = $idaa_loc.recovery_meetings.qry__physical;
        const qry_virtual = $idaa_loc.recovery_meetings.qry__virtual;
        const qry_type = $idaa_loc.recovery_meetings.qry__type;

        let local_ids: string[] = [];

        // 1. FAST PATH: Local IDB Search
        // We query Dexie first to show results from the 499-item cache pool instantly.
        if (!remote_first) {
            try {
                let local_results = await db_events.event
                    .filter((ev) => {
                        // Resilient account check
                        const acct_match =
                            ev.account_id === account_id;
                        if (!acct_match) return false;

                        if (qry_type && ev.type !== qry_type) return false;
                        if (qry_physical || qry_virtual) {
                            let match = false;
                            // Loose equality to handle 1, '1', true from DB
                            if (qry_physical && ev.physical == true)
                                match = true;
                            if (qry_virtual && ev.virtual == true) match = true;
                            if (!match) return false;
                        }
                        if (qry_str) {
                            const name = (ev.name ?? '').toLowerCase();
                            const desc = (ev.description ?? '').toLowerCase();
                            const loc = (ev.location_text ?? '').toLowerCase();
                            return (
                                name.includes(qry_str) ||
                                desc.includes(qry_str) ||
                                loc.includes(qry_str)
                            );
                        }
                        return true;
                    })
                    .toArray();

                // Sort local results matching UI selection (Refactored 2026-02-16)
                const sort_mode = $idaa_loc.recovery_meetings.qry__order_by;
                if (sort_mode === 'name_asc' || sort_mode === 'name') {
                    local_results.sort((a, b) => (a.name ?? '').localeCompare(b.name ?? ''));
                } else if (sort_mode === 'name_desc') {
                    local_results.sort((a, b) => (b.name ?? '').localeCompare(a.name ?? ''));
                } else {
                    // Robust Chronological Sort using pre-computed tmp_sort_1
                    // Handles Priority, Manual Sort, and the updated_on/created_on fallback
                    local_results.sort((a, b) => (b.tmp_sort_1 ?? '').localeCompare(a.tmp_sort_1 ?? ''));
                }

                local_ids = local_results
                    .map((e) => String(e.id))
                    .filter(Boolean);

                // Update UI immediately. This eliminates the "white page" during searching.
                if (current_search_id === last_search_id) {
                    if (log_lvl)
                        console.log(
                            `[Search #${current_search_id}] Fast Path complete. Found ${local_ids.length} items locally.`
                        );
                    event_id_li = local_ids;
                    if (local_ids.length > 0) {
                        $idaa_sess.recovery_meetings.qry__status = 'done';
                    }
                }
            } catch (e) {
                if (log_lvl)
                    console.warn('Fast Path failed, waiting for API...', e);
            }
        }

        // 2. REVALIDATE: Server API Search
        // This hits the full database, bypassing the "cache pool" limitation.
        try {
            const results = await events_func.search__event({
                api_cfg: $ae_api,
                for_obj_type: 'account',
                for_obj_id: account_id,
                qry_conference: false,
                qry_physical: qry_physical,
                qry_virtual: qry_virtual,
                qry_type: qry_type,
                qry_str: qry_str || null,
                enabled: $idaa_loc.recovery_meetings.qry__enabled,
                hidden: $idaa_loc.recovery_meetings.qry__hidden,
                limit: $idaa_loc.recovery_meetings.qry__limit,
                order_by_li: $idaa_loc.recovery_meetings.qry__order_by_li,
                log_lvl: 0
            });

            if (current_search_id === last_search_id) {
                let api_results = results || [];

                // SECONDARY FILTER: Ensure API results respect exact UI filters (handles backend broadness)
                api_results = api_results.filter((ev: any) => {
                    if (qry_type && ev.type !== qry_type) return false;
                    if (qry_physical || qry_virtual) {
                        let match = false;
                        if (qry_physical && ev.physical == true) match = true;
                        if (qry_virtual && ev.virtual == true) match = true;
                        if (!match) return false;
                    }
                    if (qry_str && qry_str.length >= 3) {
                        const name = (ev.name ?? '').toLowerCase();
                        const desc = (ev.description ?? '').toLowerCase();
                        const loc = (ev.location_text ?? '').toLowerCase();
                        if (
                            !name.includes(qry_str) &&
                            !desc.includes(qry_str) &&
                            !loc.includes(qry_str)
                        )
                            return false;
                    }
                    return true;
                });

                // RE-SORT: Ensure perfect chronological order even if API puts NULLs last (Refactored 2026-02-16)
                if ($idaa_loc.recovery_meetings.qry__order_by === 'name') {
                    api_results.sort((a, b) => (a.name ?? '').localeCompare(b.name ?? ''));
                } else {
                    api_results.sort((a, b) => (b.tmp_sort_1 ?? '').localeCompare(a.tmp_sort_1 ?? ''));
                }

                const api_ids = api_results
                    .map((e: any) => String(e.id))
                    .filter(Boolean);

                // UI PROTECTION: Preserve results if API returns nothing (0 results)
                // BUT only if it was a successful empty response, not a failure.
                // ALSO: Only protect if qry_str was the primary change.
                // If Type or Location changed, we want to see the 0.
                const filter_changed =
                    qry_type !==
                        $idaa_sess.recovery_meetings.status_qry__last_type ||
                    qry_physical !==
                        $idaa_sess.recovery_meetings.status_qry__last_phys ||
                    qry_virtual !==
                        $idaa_sess.recovery_meetings.status_qry__last_virt;

                if (
                    api_ids.length === 0 &&
                    local_ids.length > 0 &&
                    !remote_first &&
                    !filter_changed
                ) {
                    if (log_lvl)
                        console.warn(
                            `[Search #${current_search_id}] API returned 0 matching results. Preserving local cache view.`
                        );
                    $idaa_sess.recovery_meetings.qry__status = 'done';
                    return;
                }

                $idaa_slct.event_obj_li = api_results;
                event_id_li = api_ids;

                // Snapshot last used filters for future protection checks
                $idaa_sess.recovery_meetings.status_qry__last_request_str =
                    qry_str;
                $idaa_sess.recovery_meetings.status_qry__last_type = qry_type;
                $idaa_sess.recovery_meetings.status_qry__last_phys =
                    qry_physical;
                $idaa_sess.recovery_meetings.status_qry__last_virt =
                    qry_virtual;

                $idaa_sess.recovery_meetings.qry__status = 'done';
                if (log_lvl)
                    console.log(
                        `[Search #${current_search_id}] Revalidation Complete. Found ${api_ids.length} items.`
                    );
            }
        } catch (error) {
            if (current_search_id === last_search_id) {
                console.error('Revalidation failed:', error);
                $idaa_sess.recovery_meetings.qry__status = 'error';

                // If the API failed (e.g. 400/500), we should NOT preserve results from a
                // previous successful search as it's misleading.
                // We clear the list so the 'No recovery meetings found' / Error message shows.
                event_id_li = [];
            }
        }
    }

    if (browser) {
        console.log('Browser environment ready.');
        window.parent.postMessage(
            { event_id: $idaa_slct?.event_id ?? null },
            '*'
        );
    }
</script>

<svelte:head>
    <title>
        IDAA Recovery Meetings - Novi - {$ae_loc?.title}
    </title>
</svelte:head>

<Comp__event_obj_qry />

<Element_data_store
    ds_code="recovery_meetings_info"
    ds_type="html"
    class_li="rounded-lg preset-outlined-surface-200-800 m-auto p-2 space-y-2 w-full max-w-xl"
    show_edit_btn={true}
/>

{#if Array.isArray(event_id_li) && event_id_li.length}
    <Comp__event_obj_li_wrapper
        {event_id_li}
        link_to_type={'account'}
        link_to_id={$ae_loc.account_id}
        limit={$idaa_loc.recovery_meetings.qry__limit}
        {log_lvl}
    />
{:else}
    <div class="space-y-2">
        {#if $idaa_sess.recovery_meetings.qry__status === 'loading'}
            <div
                class="ae_highlight ae_padding_md ae_row ae_flex_justify_center"
            >
                <span class="fas fa-spinner fa-spin m-1"></span>
                Searching...
            </div>
        {:else}
            <div
                class="ae_highlight ae_padding_md ae_row ae_flex_justify_center"
            >
                No recovery meetings found matching your criteria.
            </div>
        {/if}
    </div>
{/if}
