// Copyright: Ankitects Pty Ltd and contributors
// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html

import "./import-csv-base.scss";

import { ModuleName, setupI18n } from "@tslib/i18n";
import { checkNightMode } from "@tslib/nightmode";
import type { ImportExport, Notetypes } from "@tslib/proto";
import { Decks, decks as decksService, empty, notetypes as notetypeService } from "@tslib/proto";

import ImportCsvPage from "./ImportCsvPage.svelte";
import { getCsvMetadata } from "./lib";

const gettingNotetypes = notetypeService.getNotetypeNames(empty);
const gettingDecks = decksService.getDeckNames(
    Decks.GetDeckNamesRequest.create({
        skipEmptyDefault: false,
        includeFiltered: false,
    }),
);
const i18n = setupI18n({
    modules: [
        ModuleName.ACTIONS,
        ModuleName.CHANGE_NOTETYPE,
        ModuleName.DECKS,
        ModuleName.EDITING,
        ModuleName.IMPORTING,
        ModuleName.KEYBOARD,
        ModuleName.NOTETYPES,
        ModuleName.STUDYING,
    ],
});

export async function setupImportCsvPage(path: string): Promise<ImportCsvPage> {
    const gettingMetadata = getCsvMetadata(path);

    let notetypes: Notetypes.NotetypeNames;
    let decks: Decks.DeckNames;
    let metadata: ImportExport.CsvMetadata;
    try {
        [notetypes, decks, metadata] = await Promise.all([
            gettingNotetypes,
            gettingDecks,
            gettingMetadata,
            i18n,
        ]);
    } catch (err) {
        alert(err);
        throw (err);
    }

    checkNightMode();

    return new ImportCsvPage({
        target: document.body,
        props: {
            path: path,
            deckNameIds: decks.entries,
            notetypeNameIds: notetypes.entries,
            dupeResolution: metadata.dupeResolution,
            matchScope: metadata.matchScope,
            delimiter: metadata.delimiter,
            forceDelimiter: metadata.forceDelimiter,
            isHtml: metadata.isHtml,
            forceIsHtml: metadata.forceIsHtml,
            globalTags: metadata.globalTags,
            updatedTags: metadata.updatedTags,
            columnLabels: metadata.columnLabels,
            tagsColumn: metadata.tagsColumn,
            guidColumn: metadata.guidColumn,
            globalNotetype: metadata.globalNotetype ?? null,
            preview: metadata.preview,
            // Unset oneof numbers default to 0, which also means n/a here,
            // but it's vital to differentiate between unset and 0 when reserializing.
            notetypeColumn: metadata.notetypeColumn ? metadata.notetypeColumn : null,
            deckId: metadata.deckId ? metadata.deckId : null,
            deckColumn: metadata.deckColumn ? metadata.deckColumn : null,
        },
    });
}

/* // use #testXXXX where XXXX is notetype ID to test
if (window.location.hash.startsWith("#test")) {
    const ntid = parseInt(window.location.hash.substr("#test".length), 10);
    setupCsvImportPage(ntid, ntid);
} */