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 { load_ae_obj_li__event_file } from '$lib/ae_events/ae_events__event_file';
import { load_ae_obj_li__event_presenter } from '$lib/ae_events/ae_events__event_presenter';

const ae_promises: key_val = {};

// Updated 2025-05-22
export async function load_ae_obj_id__event_presentation({
    api_cfg,
    event_presentation_id,
    inc_file_li = false,
    inc_presenter_li = false,
    enabled = 'enabled',
    hidden = 'not_hidden',
    limit = 49,
    offset = 0,
    try_cache = true,
    log_lvl = 0
}: {
    api_cfg: any;
    event_presentation_id: string;
    inc_file_li?: boolean;
    inc_presenter_li?: boolean;
    enabled?: 'enabled' | 'all' | 'not_enabled' | undefined;
    hidden?: 'hidden' | 'all' | 'not_hidden' | undefined;
    limit?: number;
    offset?: number;
    try_cache?: boolean;
    log_lvl?: number;
}) {
    if (log_lvl) {
        console.log(
            `*** load_ae_obj_id__event_presentation() *** event_presentation_id=${event_presentation_id}`
        );
    }

    const params = {};

    ae_promises.load__event_presentation_obj = await api
        .get_ae_obj_id_crud({
            api_cfg: api_cfg,
            obj_type: 'event_presentation',
            obj_id: event_presentation_id, // NOTE: This is the FQDN, not normally the ID.
            use_alt_table: false, // NOTE: This will use the table_name_alt value instead of the table_name value in the API config.
            use_alt_base: false, // NOTE: This will use the base_name_alt value instead of the base_name value
            params: params,
            log_lvl: log_lvl
        })
        .then(async function (event_presentation_obj_get_result) {
            if (event_presentation_obj_get_result) {
                if (try_cache) {
                    // Process the results first
                    const processed_obj_li = await process_ae_obj__event_presentation_props({
                        obj_li: [event_presentation_obj_get_result],
                        log_lvl: log_lvl
                    });
                    if (log_lvl) {
                        console.log('Processed object list:', processed_obj_li);
                    }
                    // Save the updated results list to the database
                    if (log_lvl) {
                        console.log('Saving to DB...');
                    }
                    await db_save_ae_obj_li__ae_obj({
                        db_instance: db_events,
                        table_name: 'presentation',
                        obj_li: processed_obj_li,
                        properties_to_save: properties_to_save,
                        log_lvl: log_lvl
                    });
                    if (log_lvl) {
                        console.log('DB save completed.');
                    }

                    // // This is expecting a list
                    // db_save_ae_obj_li__event_presentation({
                    //     obj_type: 'event_presentation',
                    //     obj_li: [event_presentation_obj_get_result]

                    // });
                }
                return event_presentation_obj_get_result;
            } else {
                console.log('No results returned.');
                return null;
            }
        })
        .catch(function (error: any) {
            console.log('No results returned or failed.', error);
        });

    if (log_lvl) {
        console.log(
            'ae_promises.load__event_presentation_obj:',
            ae_promises.load__event_presentation_obj
        );
    }

    if (ae_promises?.load__event_presentation_obj === null) {
        console.log('No results returned.');
        return null;
    }

    if (inc_file_li) {
        // Load the files for the presentation
        if (log_lvl) {
            console.log(`Need to load the file list for the presentation now.`);
        }
        const load_event_file_obj_li = load_ae_obj_li__event_file({
            api_cfg: api_cfg,
            for_obj_type: 'event_presentation',
            for_obj_id: event_presentation_id,
            enabled: 'all',
            limit: 25,
            try_cache: try_cache,
            log_lvl: log_lvl
        }).then((event_file_obj_li) => {
            if (log_lvl) {
                console.log(`event_file_obj_li = `, event_file_obj_li);
            }
            return event_file_obj_li;
        });

        if (log_lvl) {
            console.log(`event_file_obj_li = `, load_event_file_obj_li);
        }
        ae_promises.load__event_presentation_obj.event_file_li = load_event_file_obj_li;
    }

    if (inc_presenter_li) {
        // Load the presenters for the presentation
        if (log_lvl) {
            console.log(`Need to load the presenter list for the presentation now.`);
        }
        const load_event_presenter_obj_li = load_ae_obj_li__event_presenter({
            api_cfg: api_cfg,
            for_obj_type: 'event_presentation',
            for_obj_id: event_presentation_id,
            inc_file_li: inc_file_li,
            enabled: enabled,
            hidden: hidden,
            limit: limit,
            offset: offset,
            // order_by_li: {'priority': 'DESC', 'sort': 'DESC', 'updated_on': 'DESC', 'created_on': 'DESC'},
            // params: params,
            try_cache: try_cache,
            log_lvl: log_lvl
        }).then((event_presenter_obj_li) => {
            if (log_lvl) {
                console.log(`event_presenter_obj_li = `, event_presenter_obj_li);
            }
            return event_presenter_obj_li;
        });

        if (log_lvl) {
            console.log(`event_presenter_obj_li = `, load_event_presenter_obj_li);
        }
        ae_promises.load__event_presentation_obj.event_presenter_li = load_event_presenter_obj_li;
    }

    return ae_promises.load__event_presentation_obj;
}

// Updated 2025-05-22
export async function load_ae_obj_li__event_presentation({
    api_cfg,
    for_obj_type = 'event_session',
    for_obj_id,
    inc_file_li = false,
    inc_presenter_li = false,
    enabled = 'enabled',
    hidden = 'not_hidden',
    limit = 49,
    offset = 0,
    order_by_li = {
        priority: 'DESC',
        sort: 'DESC',
        start_datetime: 'ASC',
        name: 'ASC',
        updated_on: 'DESC',
        created_on: 'DESC'
    },
    params = {},
    try_cache = true,
    log_lvl = 0
}: {
    api_cfg: any;
    for_obj_type: string;
    for_obj_id: string;
    inc_file_li?: boolean;
    inc_presenter_li?: boolean;
    enabled?: 'enabled' | 'all' | 'not_enabled' | undefined;
    hidden?: 'hidden' | 'all' | 'not_hidden' | undefined;
    limit?: number;
    offset?: number;
    order_by_li?: key_val;
    params?: key_val;
    try_cache?: boolean;
    log_lvl?: number;
}) {
    if (log_lvl) {
        console.log(
            `*** load_ae_obj_li__event_presentation() *** for_obj_type=${for_obj_type} for_obj_id=${for_obj_id}`
        );
    }

    // let enabled: string = (params.qry__enabled ?? 'enabled'); // all, disabled, enabled
    // let hidden: string = (params.qry__hidden ?? 'not_hidden'); // all, hidden, not_hidden
    // let limit: number = (params.qry__limit ?? 99); // 99
    // let offset: number = (params.qry__offset ?? 0); // 0

    const params_json: key_val = {};

    // console('params_json:', params_json);

    // ae_promises.load__event_presentation_obj_li = await api.get_ae_obj_li_for_obj_id_crud({
    ae_promises.load__event_presentation_obj_li = await api
        .get_ae_obj_li_for_obj_id_crud_v2({
            api_cfg: api_cfg,
            obj_type: 'event_presentation',
            for_obj_type: for_obj_type,
            for_obj_id: for_obj_id,
            use_alt_tbl: true, // NOTE: This will use the table_name_alt value instead of the table_name value in the API config.
            // use_alt_mdl: false, // NOTE: This will use the base_name_alt value instead of the base_name value
            enabled: enabled,
            hidden: hidden,
            order_by_li: order_by_li,
            limit: limit,
            offset: offset,
            params_json: params_json,
            params: params,
            log_lvl: log_lvl
        })
        .then(async function (event_presentation_obj_li_get_result) {
            if (event_presentation_obj_li_get_result) {
                if (try_cache) {
                    // Process the results first
                    const processed_obj_li = await process_ae_obj__event_presentation_props({
                        obj_li: event_presentation_obj_li_get_result,
                        log_lvl: log_lvl
                    });
                    if (log_lvl) {
                        console.log('Processed object list:', processed_obj_li);
                    }
                    // Save the updated results list to the database
                    if (log_lvl) {
                        console.log('Saving to DB...');
                    }
                    await db_save_ae_obj_li__ae_obj({
                        db_instance: db_events,
                        table_name: 'presentation',
                        obj_li: processed_obj_li,
                        properties_to_save: properties_to_save,
                        log_lvl: log_lvl
                    });
                    if (log_lvl) {
                        console.log('DB save completed.');
                    }

                    // db_save_ae_obj_li__event_presentation({
                    //     obj_type: 'event_presentation', obj_li: event_presentation_obj_li_get_result
                    // });
                }
                return event_presentation_obj_li_get_result;
            } else {
                return [];
            }
        })
        .catch(function (error: any) {
            console.log('No results returned or failed.', error);
        });

    if (log_lvl) {
        console.log(
            'ae_promises.load__event_presentation_obj_li:',
            ae_promises.load__event_presentation_obj_li
        );
    }

    if (inc_file_li) {
        // Load the files for the presentations
        if (log_lvl) {
            console.log(`Need to load the file list for each presentation now.`);
        }
        for (let i = 0; i < ae_promises.load__event_presentation_obj_li.length; i++) {
            const event_presentation_obj = ae_promises.load__event_presentation_obj_li[i];
            const event_presentation_id = event_presentation_obj.event_presentation_id_random;

            const load_event_file_obj_li = load_ae_obj_li__event_file({
                api_cfg: api_cfg,
                for_obj_type: 'event_presentation',
                for_obj_id: event_presentation_id,
                enabled: enabled,
                limit: limit,
                try_cache: try_cache,
                log_lvl: log_lvl
            }).then((event_file_obj_li) => {
                if (log_lvl) {
                    console.log(`event_file_obj_li = `, event_file_obj_li);
                }
                return event_file_obj_li;
            });

            if (log_lvl) {
                console.log(`event_file_obj_li = `, load_event_file_obj_li);
            }
            // ae_promises.load__event_presentation_obj.event_file_li = load_event_file_obj_li;
        }
    }

    if (inc_presenter_li) {
        // Load the presenters for the presentations
        if (log_lvl) {
            console.log(`Need to load the presenter list for each presentation now.`);
        }
        for (let i = 0; i < ae_promises.load__event_presentation_obj_li.length; i++) {
            const event_presentation_obj = ae_promises.load__event_presentation_obj_li[i];
            const event_presentation_id = event_presentation_obj.event_presentation_id_random;

            const load_event_presenter_obj_li = load_ae_obj_li__event_presenter({
                api_cfg: api_cfg,
                for_obj_type: 'event_presentation',
                for_obj_id: event_presentation_id,
                inc_file_li: inc_file_li,
                enabled: enabled,
                hidden: hidden,
                limit: limit,
                offset: offset,
                // order_by_li: {'priority': 'DESC', 'sort': 'DESC', 'updated_on': 'DESC', 'created_on': 'DESC'},
                // params: {},
                try_cache: try_cache,
                log_lvl: log_lvl
            }).then((event_presenter_obj_li) => {
                if (log_lvl) {
                    console.log(`event_presenter_obj_li = `, event_presenter_obj_li);
                }
                return event_presenter_obj_li;
            });

            if (log_lvl) {
                console.log(`event_presenter_obj_li = `, load_event_presenter_obj_li);
            }
            // ae_promises.load__event_presentation_obj.event_presenter_li = load_event_presenter_obj_li;
        }
    }

    return ae_promises.load__event_presentation_obj_li;
}

// Updated 2025-05-22
export async function create_ae_obj__event_presentation({
    api_cfg,
    event_id,
    event_session_id,
    data_kv,
    params = {},
    try_cache = true,
    log_lvl = 0
}: {
    api_cfg: any;
    event_id: string;
    event_session_id: string;
    data_kv: key_val;
    params?: key_val;
    try_cache?: boolean;
    log_lvl?: number;
}) {
    if (log_lvl) {
        console.log(
            `*** create_ae_obj__event_presentation() *** event_id=${event_id} event_session_id=${event_session_id}`
        );
    }

    ae_promises.create__event_presentation = await api
        .create_ae_obj_crud({
            api_cfg: api_cfg,
            obj_type: 'event_presentation',
            fields: {
                event_id_random: event_id,
                event_session_id_random: event_session_id,
                ...data_kv
            },
            key: api_cfg.api_crud_super_key,
            params: params,
            return_obj: true,
            log_lvl: log_lvl
        })
        .then(async function (event_presentation_obj_create_result) {
            if (event_presentation_obj_create_result) {
                if (try_cache) {
                    // Process the results first
                    const processed_obj_li = await process_ae_obj__event_presentation_props({
                        obj_li: [event_presentation_obj_create_result],
                        log_lvl: log_lvl
                    });
                    if (log_lvl) {
                        console.log('Processed object list:', processed_obj_li);
                    }
                    // Save the updated results list to the database
                    if (log_lvl) {
                        console.log('Saving to DB...');
                    }
                    db_save_ae_obj_li__ae_obj({
                        db_instance: db_events,
                        table_name: 'presentation',
                        obj_li: processed_obj_li,
                        properties_to_save: properties_to_save,
                        log_lvl: log_lvl
                    });
                    if (log_lvl) {
                        console.log('DB save completed.');
                    }

                    // db_save_ae_obj_li__event_presentation(
                    //     {
                    //         obj_type: 'event_presentation',
                    //         obj_li: [event_presentation_obj_create_result]
                    //     });
                }
                return event_presentation_obj_create_result;
            } else {
                return null;
            }
        })
        .catch(function (error: any) {
            console.log('No results returned or failed.', error);
        })
        .finally(function () {});

    if (log_lvl) {
        console.log(
            'ae_promises.create__event_presentation:',
            ae_promises.create__event_presentation
        );
    }
    return ae_promises.create__event_presentation;
}

// Updated 2025-05-22
export async function delete_ae_obj_id__event_presentation({
    api_cfg,
    event_presentation_id,
    method = 'delete', // 'delete', 'disable', 'hide'
    params = {},
    try_cache = true,
    log_lvl = 0
}: {
    api_cfg: any;
    event_presentation_id: string;
    method?: string;
    params?: key_val;
    try_cache?: boolean;
    log_lvl?: number;
}) {
    if (log_lvl) {
        console.log(
            `*** delete_ae_obj_id__event_presentation() *** event_presentation_id=${event_presentation_id}`
        );
    }

    ae_promises.delete__event_presentation_obj = await api
        .delete_ae_obj_id_crud({
            api_cfg: api_cfg,
            obj_type: 'event_presentation',
            obj_id: event_presentation_id,
            key: api_cfg.api_crud_super_key,
            params: params,
            method: method,
            log_lvl: log_lvl
        })
        .catch(function (error: any) {
            console.log('No results returned or failed.', error);
        })
        .finally(function () {
            if (try_cache) {
                if (log_lvl) {
                    console.log(
                        `Attempting to remove IDB entry for event_presentation_id=${event_presentation_id}`
                    );
                }
                db_events.presentation.delete(event_presentation_id);
            }
        });

    if (log_lvl) {
        console.log(
            'ae_promises.delete__event_presentation_obj:',
            ae_promises.delete__event_presentation_obj
        );
    }

    return ae_promises.delete__event_presentation_obj;
}

// Updated 2025-05-22
export async function update_ae_obj__event_presentation({
    api_cfg,
    event_presentation_id,
    data_kv,
    params = {},
    try_cache = true,
    log_lvl = 0
}: {
    api_cfg: any;
    event_presentation_id: string;
    data_kv: key_val;
    params?: key_val;
    try_cache?: boolean;
    log_lvl?: number;
}) {
    if (log_lvl) {
        console.log(
            `*** update_ae_obj__event_presentation() *** event_presentation_id=${event_presentation_id}`,
            data_kv
        );
    }
    ae_promises.update__event_presentation_obj = await api
        .update_ae_obj_id_crud({
            api_cfg: api_cfg,
            obj_type: 'event_presentation',
            obj_id: event_presentation_id,
            fields: data_kv,
            key: api_cfg.api_crud_super_key,
            params: params,
            return_obj: true,
            log_lvl: log_lvl
        })
        .then(async function (event_presentation_obj_update_result) {
            if (event_presentation_obj_update_result) {
                if (try_cache) {
                    // Process the results first
                    const processed_obj_li = await process_ae_obj__event_presentation_props({
                        obj_li: [event_presentation_obj_update_result],
                        log_lvl: log_lvl
                    });
                    if (log_lvl) {
                        console.log('Processed object list:', processed_obj_li);
                    }
                    // Save the updated results list to the database
                    if (log_lvl) {
                        console.log('Saving to DB...');
                    }
                    db_save_ae_obj_li__ae_obj({
                        db_instance: db_events,
                        table_name: 'presentation',
                        obj_li: processed_obj_li,
                        properties_to_save: properties_to_save,
                        log_lvl: log_lvl
                    });
                    if (log_lvl) {
                        console.log('DB save completed.');
                    }

                    // db_save_ae_obj_li__event_presentation({
                    //     obj_type: 'event_presentation',
                    //     obj_li: [event_presentation_obj_update_result],
                    //     log_lvl: log_lvl
                    // });
                }
                return event_presentation_obj_update_result;
            } else {
                return null;
            }
        })
        .catch(function (error: any) {
            console.log('No results returned or failed.', error);
        })
        .finally(function () {});

    if (log_lvl) {
        console.log(
            'ae_promises.update__event_presentation_obj:',
            ae_promises.update__event_presentation_obj
        );
    }
    return ae_promises.update__event_presentation_obj;
}

// Updated 2025-05-22
export const properties_to_save = [
    'id',
    'event_presentation_id',
    // 'event_presentation_id_random',

    'external_id',
    'code',

    'for_type',
    'for_id',
    // 'for_id_random',

    'type_code',

    'event_id',
    // 'event_id_random',
    'event_session_id',
    // 'event_session_id_random',
    'event_abstract_id',
    // 'event_abstract_id_random',

    'abstract_code',

    'name',
    'description',

    'start_datetime',
    'end_datetime',

    'passcode',

    'hide_event_launcher',

    'enable',
    'hide',
    'priority',
    'sort',
    'group',
    'notes',
    'created_on',
    'updated_on',

    // Generated fields for sorting locally only
    'tmp_sort_1',
    'tmp_sort_2',
    // 'tmp_sort_a',
    // 'tmp_sort_b',

    // From SQL view
    'event_session_code',
    'event_session_name'

    // Add more fields here if your DB save logic uses them
];

/**
 * 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 (log_lvl > 0) {
        console.log(
            `*** _process_generic_props: Processing ${obj_li.length} objects of type "${obj_type}" ***`
        );
    }

    if (!obj_li || obj_li.length === 0) {
        if (log_lvl > 0) console.log('No objects to process.');
        return [];
    }

    const processed_obj_li: T[] = [];

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

        // --- Common Transformations ---

        // 1. Standardize ID and other '_random' fields
        // The API often returns fields like 'person_id_random', which need to be aliased to 'person_id'.
        for (const key in processed_obj) {
            if (key.endsWith('_random')) {
                const newKey = key.slice(0, -7); // Remove '_random' suffix
                processed_obj[newKey] = processed_obj[key];
            }
        }
        // Ensure 'id' is set from '[obj_type]_id_random'
        const randomIdKey = `${obj_type}_id_random`;
        if (processed_obj[randomIdKey]) {
            (processed_obj as any).id = processed_obj[randomIdKey];
        }

        // 2. Create common computed properties for client-side sorting.
        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}`;

        // --- Specific Transformations ---
        if (specific_processor) {
            processed_obj = await Promise.resolve(specific_processor(processed_obj));
        }

        processed_obj_li.push(processed_obj as T);
    }

    return processed_obj_li;
}

// Updated 2025-05-22
export async function process_ae_obj__event_presentation_props({
    obj_li,
    log_lvl = 0
}: {
    obj_li: any[];
    log_lvl?: number;
}) {
    return _process_generic_props({
        obj_li,
        obj_type: 'event_presentation',
        log_lvl,
        specific_processor: (obj) => {
            // Event presentation-specific computed sort fields, overriding generic ones if needed
            obj.tmp_sort_1 = `${obj.group ?? ''}_${obj.priority ? '1' : '0'}_${
                obj.sort?.toString().padStart(3, '0') ?? ''
            }_${obj.updated_on ?? obj.created_on}`;
            obj.tmp_sort_2 = `${obj.group ?? ''}_${obj.priority ? '1' : '0'}_${
                obj.sort?.toString().padStart(3, '0') ?? ''
            }_${obj.updated_on}_${obj.created_on}`;

            return obj;
        }
    });
}