"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 });
var MySQL = /** @class */ (function () {
    function MySQL(knex) {
        this.knex = knex;
    }
    MySQL.prototype.hasTable = function (table) {
        return __awaiter(this, void 0, void 0, function () {
            var count;
            return __generator(this, function (_a) {
                count = this.knex
                    .count({ count: '*' })
                    .from('information_schema.tables')
                    .where({ table_schema: this.knex.client.database(), table_name: table })
                    .first().count;
                return [2 /*return*/, !!count];
            });
        });
    };
    MySQL.prototype.table = function (table) {
        return __awaiter(this, void 0, void 0, function () {
            var rawTable;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this.knex
                            .select('TABLE_NAME', 'ENGINE', 'TABLE_SCHEMA', 'TABLE_COLLATION', 'TABLE_COMMENT')
                            .from('information_schema.tables')
                            .where({
                            table_schema: this.knex.client.database(),
                            table_type: 'BASE TABLE',
                            table_name: table,
                        })
                            .first()];
                    case 1:
                        rawTable = _a.sent();
                        return [2 /*return*/, {
                                name: rawTable.TABLE_NAME,
                                schema: rawTable.TABLE_SCHEMA,
                                comment: rawTable.TABLE_COMMENT,
                                collation: rawTable.TABLE_COLLATION,
                                engine: rawTable.ENGINE,
                            }];
                }
            });
        });
    };
    MySQL.prototype.tables = function () {
        return __awaiter(this, void 0, void 0, function () {
            var records;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this.knex
                            .select('TABLE_NAME', 'ENGINE', 'TABLE_SCHEMA', 'TABLE_COLLATION', 'TABLE_COMMENT')
                            .from('information_schema.tables')
                            .where({ table_schema: this.knex.client.database() })
                            .andWhere({ table_type: 'BASE TABLE' })
                            .orderBy('TABLE_NAME', 'asc')];
                    case 1:
                        records = _a.sent();
                        return [2 /*return*/, records.map(function (rawTable) {
                                return {
                                    name: rawTable.TABLE_NAME,
                                    schema: rawTable.TABLE_SCHEMA,
                                    comment: rawTable.TABLE_COMMENT,
                                    collation: rawTable.TABLE_COLLATION,
                                    engine: rawTable.ENGINE,
                                };
                            })];
                }
            });
        });
    };
    MySQL.prototype.primary = function (table) {
        return __awaiter(this, void 0, void 0, function () {
            var rows;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this.knex.raw("SHOW KEYS FROM ? WHERE Key_name = 'PRIMARY'", table)];
                    case 1:
                        rows = (_a.sent()).rows;
                        return [2 /*return*/, rows[0]['Column_name']];
                }
            });
        });
    };
    MySQL.prototype.columns = function (table) {
        return __awaiter(this, void 0, void 0, function () {
            var query, records;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        query = this.knex
                            .select('c.TABLE_NAME', 'c.COLUMN_NAME', 'c.COLUMN_DEFAULT', 'c.DATA_TYPE', 'c.CHARACTER_MAXIMUM_LENGTH', 'c.IS_NULLABLE', 'c.COLUMN_KEY', 'c.EXTRA', 'c.COLLATION_NAME', 'c.COLUMN_COMMENT', 'fk.REFERENCED_TABLE_NAME', 'fk.REFERENCED_COLUMN_NAME', 'fk.CONSTRAINT_NAME', 'rc.UPDATE_RULE', 'rc.DELETE_RULE', 'rc.MATCH_OPTION')
                            .from('information_schema.columns c')
                            .leftJoin('INFORMATION_SCHEMA.KEY_COLUMN_USAGE fk', function () {
                            this.on('fk.TABLE_NAME', '=', 'fk.TABLE_NAME')
                                .andOn('fk.COLUMN_NAME', '=', 'c.COLUMN_NAME')
                                .andOn('fk.CONSTRAINT_SCHEMA', '=', 'c.TABLE_SCHEMA');
                        })
                            .leftJoin('INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS rc', function () {
                            this.on('rc.TABLE_NAME', '=', 'fk.TABLE_NAME')
                                .andOn('rc.CONSTRAINT_NAME', '=', 'fk.CONSTRAINT_NAME')
                                .andOn('rc.CONSTRAINT_SCHEMA', '=', 'fk.CONSTRAINT_SCHEMA');
                        })
                            .where({ 'c.table_schema': this.knex.client.database() })
                            .orderBy(['c.TABLE_NAME', 'c.ORDINAL_POSITION']);
                        if (table) {
                            query.andWhere({ 'c.table_name': table });
                        }
                        return [4 /*yield*/, query];
                    case 1:
                        records = _a.sent();
                        return [2 /*return*/, records.map(function (rawColumn) { return ({
                                name: rawColumn.COLUMN_NAME,
                                table: rawColumn.TABLE_NAME,
                                type: rawColumn.DATA_TYPE,
                                defaultValue: rawColumn.COLUMN_DEFAULT,
                                maxLength: rawColumn.CHARACTER_MAXIMUM_LENGTH,
                                isNullable: rawColumn.IS_NULLABLE,
                                isPrimaryKey: rawColumn.CONSTRAINT_NAME === 'PRIMARY',
                                hasAutoIncrement: rawColumn.EXTRA === 'auto_increment',
                                foreignKeyColumn: rawColumn.REFERENCED_COLUMN_NAME,
                                foreignKeyTable: rawColumn.REFERENCED_TABLE_NAME,
                                comment: rawColumn.COLUMN_COMMENT,
                            }); })];
                }
            });
        });
    };
    return MySQL;
}());
exports.default = MySQL;
