import type { key_val } from '$lib/stores/ae_stores';
import { api } from '$lib/api/api';

import { db_save_ae_obj_li__ae_obj } from '$lib/ae_core/core__idb_dexie';
import { db_events } from '$lib/ae_events/db_events';
import type { ae_EventSession } from '$lib/types/ae_types';

import { load_ae_obj_li__event_file } from '$lib/ae_events/ae_events__event_file';
import { load_ae_obj_li__event_presentation } from '$lib/ae_events/ae_events__event_presentation';

const ae_promises: key_val = {};

// Updated 2026-01-20 to V3
export async function load_ae_obj_id__event_session({
    api_cfg,
    event_session_id,
    inc_file_li = false,
    inc_all_file_li = false,
    inc_presentation_li = false,
    inc_presenter_li = false,
    enabled = 'enabled',
    hidden = 'not_hidden',
    view = 'default',
    limit = 100,
    offset = 0,
    try_cache = true,
    log_lvl = 0
}: {
    api_cfg: any;
    event_session_id: string;
    inc_file_li?: boolean;
    inc_all_file_li?: boolean;
    inc_presentation_li?: boolean;
    inc_presenter_li?: boolean;
    enabled?: 'enabled' | 'all' | 'not_enabled';
    hidden?: 'hidden' | 'all' | 'not_hidden';
    view?: string;
    limit?: number;
    offset?: number;
    try_cache?: boolean;
    log_lvl?: number;
}): Promise<ae_EventSession | null> {
    if (log_lvl) {
        console.log(`*** load_ae_obj_id__event_session() *** [V3] id=${event_session_id}`);
    }

    // Check if offline
    if (typeof navigator !== 'undefined' && !navigator.onLine) {
        if (log_lvl) console.log('Browser is offline. Skipping API and attempting cache load.');
        ae_promises.load__event_session_obj = await db_events.session.get(event_session_id);
        if (ae_promises.load__event_session_obj) {
            return await _handle_nested_loads(ae_promises.load__event_session_obj, { 
                api_cfg, inc_file_li, inc_all_file_li, inc_presentation_li, inc_presenter_li, enabled, hidden, limit, offset, try_cache, log_lvl 
            });
        }
        return null;
    }

    try {
        ae_promises.load__event_session_obj = await api.get_ae_obj_v3({
            api_cfg,
            obj_type: 'event_session',
            obj_id: event_session_id,
            view,
            log_lvl
        });

        if (ae_promises.load__event_session_obj) {
            if (try_cache) {
                const processed_obj_li = await process_ae_obj__event_session_props({
                    obj_li: [ae_promises.load__event_session_obj],
                    log_lvl
                });
                await db_save_ae_obj_li__ae_obj({
                    db_instance: db_events,
                    table_name: 'session',
                    obj_li: processed_obj_li,
                    properties_to_save,
                    log_lvl
                });
            }
        } else if (try_cache) {
            ae_promises.load__event_session_obj = await db_events.session.get(event_session_id);
        }
    } catch (error: any) {
        console.log('V3 Request failed.', error);
        if (try_cache) {
            ae_promises.load__event_session_obj = await db_events.session.get(event_session_id);
        }
    }

    if (!ae_promises.load__event_session_obj) return null;

    return await _handle_nested_loads(ae_promises.load__event_session_obj, { 
        api_cfg, inc_file_li, inc_all_file_li, inc_presentation_li, inc_presenter_li, enabled, hidden, limit, offset, try_cache, log_lvl 
    });
}

/**
 * Helper to handle nested collection loads for a session
 */
async function _handle_nested_loads(session_obj: any, { api_cfg, inc_file_li, inc_all_file_li, inc_presentation_li, inc_presenter_li, enabled, hidden, limit, offset, try_cache, log_lvl }: any) {
    const current_session_id = session_obj.event_session_id_random || session_obj.event_session_id || session_obj.id;

    if (inc_file_li) {
        session_obj.event_file_li = await load_ae_obj_li__event_file({
            api_cfg,
            for_obj_type: 'event_session',
            for_obj_id: current_session_id,
            enabled,
            limit: 15,
            try_cache,
            log_lvl
        });
    }

    if (inc_presentation_li) {
        session_obj.event_presentation_li = await load_ae_obj_li__event_presentation({
            api_cfg,
            for_obj_type: 'event_session',
            for_obj_id: current_session_id,
            inc_file_li: inc_all_file_li,
            inc_presenter_li,
            enabled,
            hidden,
            limit,
            offset,
            try_cache,
            log_lvl
        });
    }

    return session_obj;
}

// Updated 2026-01-20 to V3
export async function load_ae_obj_li__event_session({
    api_cfg,
    for_obj_type = 'event',
    for_obj_id,
    inc_file_li = false,
    inc_all_file_li = false,
    inc_presentation_li = false,
    inc_presenter_li = false,
    enabled = 'enabled',
    hidden = 'not_hidden',
    limit = 100,
    offset = 0,
    order_by_li = [
        { priority: 'DESC' },
        { sort: 'DESC' },
        { start_datetime: 'ASC' },
        { name: 'ASC' },
        { updated_on: 'DESC' }
    ],
    try_cache = true,
    log_lvl = 0
}: {
    api_cfg: any;
    for_obj_type?: string;
    for_obj_id: string;
    inc_file_li?: boolean;
    inc_all_file_li?: boolean;
    inc_presentation_li?: boolean;
    inc_presenter_li?: boolean;
    enabled?: 'enabled' | 'all' | 'not_enabled';
    hidden?: 'hidden' | 'all' | 'not_hidden';
    limit?: number;
    offset?: number;
    order_by_li?: any;
    try_cache?: boolean;
    log_lvl?: number;
}): Promise<ae_EventSession[]> {
    if (log_lvl) {
        console.log(`*** load_ae_obj_li__event_session() *** [V3] for=${for_obj_type}:${for_obj_id}`);
    }

    // Check if offline
    if (typeof navigator !== 'undefined' && !navigator.onLine) {
        if (log_lvl) console.log('Browser is offline. Skipping API and attempting cache load.');
        ae_promises.load__event_session_obj_li = await db_events.session
            .where('for_id').equals(for_obj_id)
            .toArray();
        if (ae_promises.load__event_session_obj_li) {
            for (const session of ae_promises.load__event_session_obj_li) {
                await _handle_nested_loads(session, { api_cfg, inc_file_li, inc_all_file_li, inc_presentation_li, inc_presenter_li, enabled, hidden, limit, offset, try_cache, log_lvl });
            }
        }
        return ae_promises.load__event_session_obj_li || [];
    }

    try {
        ae_promises.load__event_session_obj_li = await api.get_ae_obj_li_v3({
            api_cfg,
            obj_type: 'event_session',
            for_obj_type,
            for_obj_id,
            enabled,
            hidden,
            limit,
            offset,
            order_by_li,
            log_lvl
        });

        if (ae_promises.load__event_session_obj_li) {
            if (try_cache) {
                const processed_obj_li = await process_ae_obj__event_session_props({
                    obj_li: ae_promises.load__event_session_obj_li,
                    log_lvl
                });
                await db_save_ae_obj_li__ae_obj({
                    db_instance: db_events,
                    table_name: 'session',
                    obj_li: processed_obj_li,
                    properties_to_save,
                    log_lvl
                });
            }
        } else if (try_cache) {
            ae_promises.load__event_session_obj_li = await db_events.session
                .where('for_id').equals(for_obj_id)
                .toArray();
        }
    } catch (error: any) {
        console.log('V3 List Request failed.', error);
        if (try_cache) {
            ae_promises.load__event_session_obj_li = await db_events.session
                .where('for_id').equals(for_obj_id)
                .toArray();
        }
    }

    if (ae_promises.load__event_session_obj_li) {
        for (const session of ae_promises.load__event_session_obj_li) {
            await _handle_nested_loads(session, { api_cfg, inc_file_li, inc_all_file_li, inc_presentation_li, inc_presenter_li, enabled, hidden, limit, offset, try_cache, log_lvl });
        }
    }

    return ae_promises.load__event_session_obj_li || [];
}

// Updated 2026-01-20 to V3
export async function create_ae_obj__event_session({
    api_cfg,
    event_id,
    data_kv,
    try_cache = true,
    log_lvl = 0
}: {
    api_cfg: any;
    event_id: string;
    data_kv: key_val;
    try_cache?: boolean;
    log_lvl?: number;
}): Promise<ae_EventSession | null> {
    if (log_lvl) {
        console.log(`*** create_ae_obj__event_session() *** [V3] event_id=${event_id}`);
    }

    const result = await api.create_ae_obj_v3({
        api_cfg,
        obj_type: 'event_session',
        fields: {
            event_id_random: event_id,
            ...data_kv
        },
        log_lvl
    });

    if (result && try_cache) {
        const processed_obj_li = await process_ae_obj__event_session_props({
            obj_li: [result],
            log_lvl
        });
        await db_save_ae_obj_li__ae_obj({
            db_instance: db_events,
            table_name: 'session',
            obj_li: processed_obj_li,
            properties_to_save,
            log_lvl
        });
    }

    return result;
}

// Updated 2026-01-20 to V3
export async function delete_ae_obj_id__event_session({
    api_cfg,
    event_session_id,
    method = 'delete',
    try_cache = true,
    log_lvl = 0
}: {
    api_cfg: any;
    event_session_id: string;
    method?: 'delete' | 'soft_delete' | 'disable' | 'hide';
    try_cache?: boolean;
    log_lvl?: number;
}) {
    if (log_lvl) {
        console.log(`*** delete_ae_obj_id__event_session() *** [V3] id=${event_session_id}`);
    }

    const result = await api.delete_ae_obj_v3({
        api_cfg,
        obj_type: 'event_session',
        obj_id: event_session_id,
        method,
        log_lvl
    });

    if (try_cache) {
        await db_events.session.delete(event_session_id);
    }

    return result;
}

// Updated 2026-01-20 to V3
export async function update_ae_obj__event_session({
    api_cfg,
    event_session_id,
    data_kv,
    try_cache = true,
    log_lvl = 0
}: {
    api_cfg: any;
    event_session_id: string;
    data_kv: key_val;
    try_cache?: boolean;
    log_lvl?: number;
}): Promise<ae_EventSession | null> {
    if (log_lvl) {
        console.log(`*** update_ae_obj__event_session() *** [V3] id=${event_session_id}`);
    }

    const result = await api.update_ae_obj_v3({
        api_cfg,
        obj_type: 'event_session',
        obj_id: event_session_id,
        fields: data_kv,
        log_lvl
    });

    if (result && try_cache) {
        const processed_obj_li = await process_ae_obj__event_session_props({
            obj_li: [result],
            log_lvl
        });
        await db_save_ae_obj_li__ae_obj({
            db_instance: db_events,
            table_name: 'session',
            obj_li: processed_obj_li,
            properties_to_save,
            log_lvl
        });
    }

    return result;
}

// Updated 2026-01-21 to Restore Full Aether Search logic
export async function search__event_session({
    api_cfg,
    event_id,
    fulltext_search_qry_str = '',
    ft_presenter_search_qry_str = '',
    like_search_qry_str = '',
    like_presentation_search_qry_str = '',
    like_presenter_search_qry_str = '',
    like_poc_name_qry_str = '',
    location_name = null,
    enabled = 'enabled',
    hidden = 'not_hidden',
    limit = 50,
    offset = 0,
    order_by_li = [
        { sort: 'ASC' },
        { start_datetime: 'ASC' },
        { name: 'ASC' }
    ],
    try_cache = true,
    log_lvl = 0
}: {
    api_cfg: any;
    event_id: string;
    fulltext_search_qry_str?: string;
    ft_presenter_search_qry_str?: string | null;
    like_search_qry_str?: string;
    like_presentation_search_qry_str?: string;
    like_presenter_search_qry_str?: string;
    like_poc_name_qry_str?: string;
    location_name?: null | string;
    enabled?: 'enabled' | 'all' | 'not_enabled';
    hidden?: 'hidden' | 'all' | 'not_hidden';
    limit?: number;
    offset?: number;
    order_by_li?: any;
    try_cache?: boolean;
    log_lvl?: number;
}): Promise<ae_EventSession[]> {
    if (log_lvl) {
        console.log(`*** search__event_session() *** [V3] event_id=${event_id} ft=${fulltext_search_qry_str}`);
    }

    const search_query: any = {
        q: '',
        and: [{ field: 'event_id_random', op: 'eq', value: event_id }]
    };

    const params: key_val = {};

    // Restore Fulltext logic
    if (fulltext_search_qry_str || ft_presenter_search_qry_str) {
        params['ft_qry'] = {};
        if (fulltext_search_qry_str && fulltext_search_qry_str.length > 2) {
            params['ft_qry']['default_qry_str'] = fulltext_search_qry_str;
        }
        if (ft_presenter_search_qry_str && ft_presenter_search_qry_str.length > 2) {
            params['ft_qry']['event_presenter_li_qry_str'] = ft_presenter_search_qry_str;
        }
    }

    // Restore Like logic
    if (like_search_qry_str || like_presentation_search_qry_str || like_presenter_search_qry_str || like_poc_name_qry_str) {
        params['lk_qry'] = {};
        if (like_search_qry_str) {
            params['lk_qry']['default_qry_str'] = like_search_qry_str;
            // Also add to the explicit V3 search body for the session table specifically
            search_query.and.push({ field: 'default_qry_str', op: 'like', value: `%${like_search_qry_str.trim()}%` });
        }
        if (like_presentation_search_qry_str) params['lk_qry']['event_presentation_li_qry_str'] = like_presentation_search_qry_str;
        if (like_presenter_search_qry_str) params['lk_qry']['event_presenter_li_qry_str'] = like_presenter_search_qry_str;
        if (like_poc_name_qry_str) params['lk_qry']['poc_person_full_name'] = like_poc_name_qry_str;
    }

    if (location_name) {
        search_query.and.push({ field: 'event_location_name', op: 'like', value: `%${location_name}%` });
    }

    if (enabled === 'enabled') search_query.and.push({ field: 'enable', op: 'eq', value: 1 });
    else if (enabled === 'not_enabled') search_query.and.push({ field: 'enable', op: 'eq', value: 0 });

    if (hidden === 'hidden') search_query.and.push({ field: 'hide', op: 'eq', value: 1 });
    else if (hidden === 'not_hidden') search_query.and.push({ field: 'hide', op: 'eq', value: 0 });

    const result_li = await api.search_ae_obj_v3({
        api_cfg,
        obj_type: 'event_session',
        search_query,
        order_by_li,
        params, // Important: pass through special Aether params
        limit,
        offset,
        log_lvl
    });

    if (result_li && try_cache) {
        const processed_obj_li = await process_ae_obj__event_session_props({
            obj_li: result_li,
            log_lvl
        });
        await db_save_ae_obj_li__ae_obj({
            db_instance: db_events,
            table_name: 'session',
            obj_li: processed_obj_li,
            properties_to_save,
            log_lvl
        });
    }

    return result_li || [];
}

export const qry__event_session = search__event_session;

/**
 * Send sign-in link to POC
 */
export async function email_sign_in__event_session({
    api_cfg,
    to_email,
    to_name,
    base_url,
    person_id,
    person_passcode,
    event_id,
    event_session_id,
    session_name
}: {
    api_cfg: any;
    to_email: string;
    to_name: string;
    base_url: string;
    person_id: string;
    person_passcode: string;
    event_id: string;
    event_session_id: string;
    session_name: string;
}) {
    const subject = `Pres Mgmt Hub Sign In Link for ${session_name}`;
    const sign_in_url = encodeURI(
        `${base_url}/events/${event_id}/session/${event_session_id}?person_id=${person_id}&person_pass=${person_passcode}`
    );

    const body_html = `
    <div>${to_name},
    <p>Your sign-in link for ${session_name}: <a href="${sign_in_url}">${sign_in_url}</a></p>
    </div>`;

    return await api.send_email({
        api_cfg,
        from_email: 'noreply+presmgmt@oneskyit.com',
        from_name: 'Aether Pres Mgmt',
        to_email,
        subject,
        body_html
    });
}

export const properties_to_save = [
    'id',
    'event_session_id',
    'external_id',
    'code',
    'for_type',
    'for_id',
    'type_code',
    'event_id',
    'event_location_id',
    'poc_person_id',
    'poc_agree',
    'poc_kv_json',
    'name',
    'description',
    'start_datetime',
    'end_datetime',
    'passcode',
    'hide_event_launcher',
    'alert',
    'alert_msg',
    'data_json',
    'ux_mode',
    'enable',
    'hide',
    'priority',
    'sort',
    'group',
    'notes',
    'created_on',
    'updated_on',
    'tmp_sort_1',
    'tmp_sort_2',
    'file_count',
    'file_count_all',
    'internal_use_count',
    'event_file_id_li_json',
    'poc_person_given_name',
    'poc_person_family_name',
    'poc_person_full_name',
    'poc_person_primary_email',
    'poc_person_passcode',
    'event_name',
    'event_location_code',
    'event_location_name',
    'event_presentation_li'
];

/**
 * NON-EXPORTED LOCAL HELPER
 * Processes a list of Aether objects by applying common and specific transformations.
 */
async function _process_generic_props<T extends Record<string, any>>({
    obj_li,
    obj_type,
    log_lvl = 0,
    specific_processor
}: {
    obj_li: T[];
    obj_type: string;
    log_lvl?: number;
    specific_processor?: (obj: T) => Promise<T> | T;
}): Promise<T[]> {
    if (!obj_li || obj_li.length === 0) return [];

    const processed_obj_li: T[] = [];

    for (const original_obj of obj_li) {
        let processed_obj = { ...original_obj };

        // 1. Standardize ID and other '_random' fields
        for (const key in processed_obj) {
            if (key.endsWith('_random')) {
                const newKey = key.slice(0, -7);
                (processed_obj as any)[newKey] = processed_obj[key];
            }
        }
        const randomIdKey = `${obj_type}_id_random`;
        if (processed_obj[randomIdKey]) {
            (processed_obj as any).id = processed_obj[randomIdKey];
        }

        // 2. Create common computed properties
        const group = processed_obj.group ?? '0';
        const priority = processed_obj.priority ? 1 : 0;
        const sort = processed_obj.sort ?? '0';
        const updated = processed_obj.updated_on ?? processed_obj.created_on;
        const name = processed_obj.name ?? '';

        (processed_obj as any).tmp_sort_1 = `${group}_${priority}_${sort}_${updated}`;
        (processed_obj as any).tmp_sort_2 = `${group}_${priority}_${sort}_${name}_${updated}`;

        if (specific_processor) {
            processed_obj = await Promise.resolve(specific_processor(processed_obj));
        }

        processed_obj_li.push(processed_obj as T);
    }

    return processed_obj_li;
}

export async function process_ae_obj__event_session_props({
    obj_li,
    log_lvl = 0
}: {
    obj_li: any[];
    log_lvl?: number;
}) {
    return _process_generic_props({
        obj_li,
        obj_type: 'event_session',
        log_lvl
    });
}