"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __generator = (this && this.__generator) || function (thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
    function verb(n) { return function (v) { return step([n, v]); }; }
    function step(op) {
        if (f) throw new TypeError("Generator is already executing.");
        while (_) try {
            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
            if (y = 0, t) op = [op[0] & 2, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
                case 7: op = _.ops.pop(); _.trys.pop(); continue;
                default:
                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                    if (t[2]) _.ops.pop();
                    _.trys.pop(); continue;
            }
            op = body.call(thisArg, _);
        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
    }
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.WordEmbeddingsDBHelper = exports.isSupportedWordEmbedding = void 0;
var path_1 = require("path");
var fs_1 = require("fs");
var db = require("better-sqlite3");
var constants_1 = require("../constants");
var file_system_1 = require("../util/file-system");
exports.isSupportedWordEmbedding = function (locale, kind, dimension) {
    return constants_1.SUPPORTED_EMBEDDINGS[locale] &&
        constants_1.SUPPORTED_EMBEDDINGS[locale][kind].includes(dimension);
};
var WordEmbeddingsDBHelper = /** @class */ (function () {
    function WordEmbeddingsDBHelper(kind, dimension, locale) {
        if (!exports.isSupportedWordEmbedding(locale, kind, dimension)) {
            this.isValidWEmbedding = false;
            return;
        }
        this._embeddingsFilename = (kind + "-" + dimension + "d-" + locale).concat(constants_1.WE_DB_FILE.EXTENSION);
        this._embeddingsAbsolutePath = path_1.join(constants_1.GLOBAL_WORD_EMBEDDINGS_PATH, this._embeddingsFilename);
        this.isValidWEmbedding = true;
    }
    WordEmbeddingsDBHelper.prototype._downloadIfNotExists = function (logProcess) {
        return __awaiter(this, void 0, void 0, function () {
            var res;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        if (!!fs_1.existsSync(this._embeddingsAbsolutePath)) return [3 /*break*/, 2];
                        logProcess &&
                            console.debug("The file '" + this._embeddingsFilename + "' was not found in your machine.");
                        logProcess && console.debug('An automatic download will start in brief.');
                        if (!fs_1.existsSync(constants_1.GLOBAL_WORD_EMBEDDINGS_PATH)) {
                            fs_1.mkdirSync(constants_1.GLOBAL_WORD_EMBEDDINGS_PATH);
                        }
                        logProcess &&
                            console.debug("Downloading '" + this._embeddingsFilename + "'...");
                        logProcess &&
                            console.debug("Please, wait until the download finishes.\n");
                        return [4 /*yield*/, file_system_1.downloadIntoPath({
                                url: constants_1.BOTONIC_WORD_EMBEDDINGS_URL + "/" + this._embeddingsFilename,
                                downloadPath: this._embeddingsAbsolutePath,
                            })];
                    case 1:
                        res = _a.sent();
                        return [3 /*break*/, 3];
                    case 2:
                        logProcess && console.debug("Found '" + this._embeddingsFilename + "'.");
                        _a.label = 3;
                    case 3: return [2 /*return*/];
                }
            });
        });
    };
    WordEmbeddingsDBHelper.prototype.initialize = function (_a) {
        var logProcess = _a.logProcess;
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_b) {
                switch (_b.label) {
                    case 0:
                        if (!this.isValidWEmbedding) return [3 /*break*/, 2];
                        return [4 /*yield*/, this._downloadIfNotExists(logProcess)];
                    case 1:
                        _b.sent();
                        this._connect();
                        this._prepareStatement();
                        _b.label = 2;
                    case 2: return [2 /*return*/];
                }
            });
        });
    };
    WordEmbeddingsDBHelper.prototype._connect = function () {
        this._db = new db(this._embeddingsAbsolutePath, { readonly: true });
    };
    WordEmbeddingsDBHelper.prototype._prepareStatement = function () {
        this._statement = this._db.prepare("SELECT * FROM " + constants_1.WE_DB_FILE.TABLE_NAME + " WHERE " + constants_1.WE_DB_FILE.COLUMN_NAME + " = ?");
    };
    Object.defineProperty(WordEmbeddingsDBHelper.prototype, "instance", {
        get: function () {
            return this._db;
        },
        enumerable: false,
        configurable: true
    });
    WordEmbeddingsDBHelper.prototype.select = function (word) {
        return __awaiter(this, void 0, void 0, function () {
            var res, token, vector, floatVector;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this._statement.get(word)];
                    case 1:
                        res = _a.sent();
                        if (!res)
                            return [2 /*return*/, undefined];
                        token = res.token, vector = res.vector;
                        floatVector = vector.split(' ').map(function (v) { return parseFloat(v); });
                        return [2 /*return*/, { token: token, vector: floatVector }];
                }
            });
        });
    };
    WordEmbeddingsDBHelper.prototype.close = function () {
        this._db.close();
    };
    return WordEmbeddingsDBHelper;
}());
exports.WordEmbeddingsDBHelper = WordEmbeddingsDBHelper;
//# sourceMappingURL=wembeddings-db-helper.js.map