import { DateUtils } from "../../util/DateUtils";
import { RdbmsSchemaBuilder } from "../../schema-builder/RdbmsSchemaBuilder";
import { OrmUtils } from "../../util/OrmUtils";
import { ApplyValueTransformers } from "../../util/ApplyValueTransformers";
import { DriverPackageNotInstalledError } from "../../error";
import { InstanceChecker } from "../../util/InstanceChecker";
import { ReactNativeQueryRunner } from "./ReactNativeQueryRunner";
/**
 * Organizes communication with sqlite DBMS.
 */
export class ReactNativeDriver {
    // -------------------------------------------------------------------------
    // Constructor
    // -------------------------------------------------------------------------
    constructor(connection) {
        /**
         * Indicates if replication is enabled.
         */
        this.isReplicated = false;
        /**
         * Indicates if tree tables are supported by this driver.
         */
        this.treeSupport = true;
        /**
         * Represent transaction support by this driver
         */
        this.transactionSupport = "nested";
        /**
         * Gets list of supported column data types by a driver.
         *
         * @see https://www.tutorialspoint.com/sqlite/sqlite_data_types.htm
         * @see https://sqlite.org/datatype3.html
         */
        this.supportedDataTypes = [
            "int",
            "integer",
            "tinyint",
            "smallint",
            "mediumint",
            "bigint",
            "unsigned big int",
            "int2",
            "int8",
            "integer",
            "character",
            "varchar",
            "varying character",
            "nchar",
            "native character",
            "nvarchar",
            "text",
            "clob",
            "text",
            "blob",
            "real",
            "double",
            "double precision",
            "float",
            "real",
            "numeric",
            "decimal",
            "boolean",
            "date",
            "time",
            "datetime",
        ];
        /**
         * Returns type of upsert supported by driver if any
         */
        this.supportedUpsertTypes = ["on-conflict-do-update"];
        /**
         * Gets list of column data types that support length by a driver.
         */
        this.withLengthColumnTypes = [
            "character",
            "varchar",
            "varying character",
            "nchar",
            "native character",
            "nvarchar",
            "text",
            "blob",
            "clob",
        ];
        /**
         * Gets list of spatial column data types.
         */
        this.spatialTypes = [];
        /**
         * Gets list of column data types that support precision by a driver.
         */
        this.withPrecisionColumnTypes = [
            "real",
            "double",
            "double precision",
            "float",
            "real",
            "numeric",
            "decimal",
            "date",
            "time",
            "datetime",
        ];
        /**
         * Gets list of column data types that support scale by a driver.
         */
        this.withScaleColumnTypes = [
            "real",
            "double",
            "double precision",
            "float",
            "real",
            "numeric",
            "decimal",
        ];
        /**
         * Orm has special columns and we need to know what database column types should be for those types.
         * Column types are driver dependant.
         */
        this.mappedDataTypes = {
            createDate: "datetime",
            createDateDefault: "datetime('now')",
            updateDate: "datetime",
            updateDateDefault: "datetime('now')",
            deleteDate: "datetime",
            deleteDateNullable: true,
            version: "integer",
            treeLevel: "integer",
            migrationId: "integer",
            migrationName: "varchar",
            migrationTimestamp: "bigint",
            cacheId: "int",
            cacheIdentifier: "varchar",
            cacheTime: "bigint",
            cacheDuration: "int",
            cacheQuery: "text",
            cacheResult: "text",
            metadataType: "varchar",
            metadataDatabase: "varchar",
            metadataSchema: "varchar",
            metadataTable: "varchar",
            metadataName: "varchar",
            metadataValue: "text",
        };
        this.cteCapabilities = {
            enabled: true,
            requiresRecursiveHint: true,
        };
        // -------------------------------------------------------------------------
        // Protected Properties
        // -------------------------------------------------------------------------
        /**
         * Any attached databases (excepting default 'main')
         */
        this.attachedDatabases = {};
        this.connection = connection;
        this.options = connection.options;
        // this.database = DriverUtils.buildDriverOptions(this.options).database
        this.database = this.options.database;
        this.loadDependencies();
    }
    // -------------------------------------------------------------------------
    // Public Abstract
    // -------------------------------------------------------------------------
    /**
     * Creates a query runner used to execute database queries.
     */
    createQueryRunner(mode) {
        if (!this.queryRunner)
            this.queryRunner = new ReactNativeQueryRunner(this);
        return this.queryRunner;
    }
    // -------------------------------------------------------------------------
    // Public Methods
    // -------------------------------------------------------------------------
    /**
     * Performs connection to the database.
     */
    async connect() {
        this.databaseConnection = await this.createDatabaseConnection();
    }
    /**
     * Makes any action after connection (e.g. create extensions in Postgres driver).
     */
    afterConnect() {
        return Promise.resolve();
    }
    /**
     * Closes connection with database.
     */
    async disconnect() {
        return new Promise((ok, fail) => {
            this.queryRunner = undefined;
            this.databaseConnection.close(ok, fail);
        });
    }
    hasAttachedDatabases() {
        return !!Object.keys(this.attachedDatabases).length;
    }
    getAttachedDatabaseHandleByRelativePath(path) {
        return this.attachedDatabases?.[path]?.attachHandle;
    }
    getAttachedDatabasePathRelativeByHandle(handle) {
        return Object.values(this.attachedDatabases).find(({ attachHandle }) => handle === attachHandle)?.attachFilepathRelative;
    }
    /**
     * Creates a schema builder used to build and sync a schema.
     */
    createSchemaBuilder() {
        return new RdbmsSchemaBuilder(this.connection);
    }
    /**
     * Prepares given value to a value to be persisted, based on its column type and metadata.
     */
    preparePersistentValue(value, columnMetadata) {
        if (columnMetadata.transformer)
            value = ApplyValueTransformers.transformTo(columnMetadata.transformer, value);
        if (value === null || value === undefined)
            return value;
        if (columnMetadata.type === Boolean ||
            columnMetadata.type === "boolean") {
            return value === true ? 1 : 0;
        }
        else if (columnMetadata.type === "date") {
            return DateUtils.mixedDateToDateString(value);
        }
        else if (columnMetadata.type === "time") {
            return DateUtils.mixedDateToTimeString(value);
        }
        else if (columnMetadata.type === "datetime" ||
            columnMetadata.type === Date) {
            // to string conversation needs because SQLite stores date as integer number, when date came as Object
            // TODO: think about `toUTC` conversion
            return DateUtils.mixedDateToUtcDatetimeString(value);
        }
        else if (columnMetadata.type === "simple-array") {
            return DateUtils.simpleArrayToString(value);
        }
        else if (columnMetadata.type === "simple-json") {
            return DateUtils.simpleJsonToString(value);
        }
        else if (columnMetadata.type === "simple-enum") {
            return DateUtils.simpleEnumToString(value);
        }
        return value;
    }
    /**
     * Prepares given value to a value to be hydrated, based on its column type or metadata.
     */
    prepareHydratedValue(value, columnMetadata) {
        if (value === null || value === undefined)
            return columnMetadata.transformer
                ? ApplyValueTransformers.transformFrom(columnMetadata.transformer, value)
                : value;
        if (columnMetadata.type === Boolean ||
            columnMetadata.type === "boolean") {
            value = value ? true : false;
        }
        else if (columnMetadata.type === "datetime" ||
            columnMetadata.type === Date) {
            /**
             * Fix date conversion issue
             *
             * If the format of the date string is "2018-03-14 02:33:33.906", Safari (and iOS WKWebView) will convert it to an invalid date object.
             * We need to modify the date string to "2018-03-14T02:33:33.906Z" and Safari will convert it correctly.
             *
             * ISO 8601
             * https://www.w3.org/TR/NOTE-datetime
             */
            if (value && typeof value === "string") {
                // There are various valid time string formats a sqlite time string might have:
                // https://www.sqlite.org/lang_datefunc.html
                // There are two separate fixes we may need to do:
                //   1) Add 'T' separator if space is used instead
                //   2) Add 'Z' UTC suffix if no timezone or offset specified
                if (/^\d\d\d\d-\d\d-\d\d \d\d:\d\d/.test(value)) {
                    value = value.replace(" ", "T");
                }
                if (/^\d\d\d\d-\d\d-\d\dT\d\d:\d\d(:\d\d(\.\d\d\d)?)?$/.test(value)) {
                    value += "Z";
                }
            }
            value = DateUtils.normalizeHydratedDate(value);
        }
        else if (columnMetadata.type === "date") {
            value = DateUtils.mixedDateToDateString(value);
        }
        else if (columnMetadata.type === "time") {
            value = DateUtils.mixedTimeToString(value);
        }
        else if (columnMetadata.type === "simple-array") {
            value = DateUtils.stringToSimpleArray(value);
        }
        else if (columnMetadata.type === "simple-json") {
            value = DateUtils.stringToSimpleJson(value);
        }
        else if (columnMetadata.type === "simple-enum") {
            value = DateUtils.stringToSimpleEnum(value, columnMetadata);
        }
        else if (columnMetadata.type === Number) {
            // convert to number if number
            value = !isNaN(+value) ? parseInt(value) : value;
        }
        if (columnMetadata.transformer)
            value = ApplyValueTransformers.transformFrom(columnMetadata.transformer, value);
        return value;
    }
    /**
     * Replaces parameters in the given sql with special escaping character
     * and an array of parameter names to be passed to a query.
     */
    escapeQueryWithParameters(sql, parameters, nativeParameters) {
        const escapedParameters = Object.keys(nativeParameters).map((key) => {
            // Mapping boolean values to their numeric representation
            if (typeof nativeParameters[key] === "boolean") {
                return nativeParameters[key] === true ? 1 : 0;
            }
            if (nativeParameters[key] instanceof Date) {
                return DateUtils.mixedDateToUtcDatetimeString(nativeParameters[key]);
            }
            return nativeParameters[key];
        });
        if (!parameters || !Object.keys(parameters).length)
            return [sql, escapedParameters];
        sql = sql.replace(/:(\.\.\.)?([A-Za-z0-9_.]+)/g, (full, isArray, key) => {
            if (!parameters.hasOwnProperty(key)) {
                return full;
            }
            const value = parameters[key];
            if (isArray) {
                return value
                    .map((v) => {
                    escapedParameters.push(v);
                    return this.createParameter(key, escapedParameters.length - 1);
                })
                    .join(", ");
            }
            if (typeof value === "function") {
                return value();
            }
            else if (typeof value === "number") {
                return String(value);
            }
            // Sqlite does not have a boolean data type so we have to transform
            // it to 1 or 0
            if (typeof value === "boolean") {
                escapedParameters.push(+value);
                return this.createParameter(key, escapedParameters.length - 1);
            }
            if (value instanceof Date) {
                escapedParameters.push(DateUtils.mixedDateToUtcDatetimeString(value));
                return this.createParameter(key, escapedParameters.length - 1);
            }
            escapedParameters.push(value);
            return this.createParameter(key, escapedParameters.length - 1);
        }); // todo: make replace only in value statements, otherwise problems
        return [sql, escapedParameters];
    }
    /**
     * Escapes a column name.
     */
    escape(columnName) {
        return '"' + columnName + '"';
    }
    /**
     * Build full table name with database name, schema name and table name.
     * E.g. myDB.mySchema.myTable
     *
     * Returns only simple table name because all inherited drivers does not supports schema and database.
     */
    buildTableName(tableName, schema, database) {
        return tableName;
    }
    /**
     * Parse a target table name or other types and return a normalized table definition.
     */
    parseTableName(target) {
        const driverDatabase = this.database;
        const driverSchema = undefined;
        if (InstanceChecker.isTable(target) || InstanceChecker.isView(target)) {
            const parsed = this.parseTableName(target.schema
                ? `"${target.schema}"."${target.name}"`
                : target.name);
            return {
                database: target.database || parsed.database || driverDatabase,
                schema: target.schema || parsed.schema || driverSchema,
                tableName: parsed.tableName,
            };
        }
        if (InstanceChecker.isTableForeignKey(target)) {
            const parsed = this.parseTableName(target.referencedTableName);
            return {
                database: target.referencedDatabase ||
                    parsed.database ||
                    driverDatabase,
                schema: target.referencedSchema || parsed.schema || driverSchema,
                tableName: parsed.tableName,
            };
        }
        if (InstanceChecker.isEntityMetadata(target)) {
            // EntityMetadata tableName is never a path
            return {
                database: target.database || driverDatabase,
                schema: target.schema || driverSchema,
                tableName: target.tableName,
            };
        }
        const parts = target.split(".");
        if (parts.length === 3) {
            return {
                database: parts[0] || driverDatabase,
                schema: parts[1] || driverSchema,
                tableName: parts[2],
            };
        }
        else if (parts.length === 2) {
            const database = this.getAttachedDatabasePathRelativeByHandle(parts[0]) ??
                driverDatabase;
            return {
                database: database,
                schema: parts[0],
                tableName: parts[1],
            };
        }
        else {
            return {
                database: driverDatabase,
                schema: driverSchema,
                tableName: target,
            };
        }
    }
    /**
     * Creates a database type from a given column metadata.
     */
    normalizeType(column) {
        if (column.type === Number || column.type === "int") {
            return "integer";
        }
        else if (column.type === String) {
            return "varchar";
        }
        else if (column.type === Date) {
            return "datetime";
        }
        else if (column.type === Boolean) {
            return "boolean";
        }
        else if (column.type === "uuid") {
            return "varchar";
        }
        else if (column.type === "simple-array") {
            return "text";
        }
        else if (column.type === "simple-json") {
            return "text";
        }
        else if (column.type === "simple-enum") {
            return "varchar";
        }
        else {
            return column.type || "";
        }
    }
    /**
     * Normalizes "default" value of the column.
     */
    normalizeDefault(columnMetadata) {
        const defaultValue = columnMetadata.default;
        if (typeof defaultValue === "number") {
            return "" + defaultValue;
        }
        if (typeof defaultValue === "boolean") {
            return defaultValue ? "1" : "0";
        }
        if (typeof defaultValue === "function") {
            return defaultValue();
        }
        if (typeof defaultValue === "string") {
            return `'${defaultValue}'`;
        }
        if (defaultValue === null || defaultValue === undefined) {
            return undefined;
        }
        return `${defaultValue}`;
    }
    /**
     * Normalizes "isUnique" value of the column.
     */
    normalizeIsUnique(column) {
        return column.entityMetadata.uniques.some((uq) => uq.columns.length === 1 && uq.columns[0] === column);
    }
    /**
     * Calculates column length taking into account the default length values.
     */
    getColumnLength(column) {
        return column.length ? column.length.toString() : "";
    }
    /**
     * Normalizes "default" value of the column.
     */
    createFullType(column) {
        let type = column.type;
        if (column.enum) {
            return "varchar";
        }
        if (column.length) {
            type += "(" + column.length + ")";
        }
        else if (column.precision !== null &&
            column.precision !== undefined &&
            column.scale !== null &&
            column.scale !== undefined) {
            type += "(" + column.precision + "," + column.scale + ")";
        }
        else if (column.precision !== null &&
            column.precision !== undefined) {
            type += "(" + column.precision + ")";
        }
        if (column.isArray)
            type += " array";
        return type;
    }
    /**
     * Obtains a new database connection to a master server.
     * Used for replication.
     * If replication is not setup then returns default connection's database connection.
     */
    obtainMasterConnection() {
        return Promise.resolve();
    }
    /**
     * Obtains a new database connection to a slave server.
     * Used for replication.
     * If replication is not setup then returns master (default) connection's database connection.
     */
    obtainSlaveConnection() {
        return Promise.resolve();
    }
    /**
     * Creates generated map of values generated or returned by database after INSERT query.
     */
    createGeneratedMap(metadata, insertResult, entityIndex, entityNum) {
        const generatedMap = metadata.generatedColumns.reduce((map, generatedColumn) => {
            let value;
            if (generatedColumn.generationStrategy === "increment" &&
                insertResult) {
                // NOTE: When INSERT statement is successfully completed, the last inserted row ID is returned.
                // see also: SqliteQueryRunner.query()
                value = insertResult - entityNum + entityIndex + 1;
                // } else if (generatedColumn.generationStrategy === "uuid") {
                //     value = insertValue[generatedColumn.databaseName];
            }
            if (!value)
                return map;
            return OrmUtils.mergeDeep(map, generatedColumn.createValueMap(value));
        }, {});
        return Object.keys(generatedMap).length > 0 ? generatedMap : undefined;
    }
    /**
     * Differentiate columns of this table and columns from the given column metadatas columns
     * and returns only changed.
     */
    findChangedColumns(tableColumns, columnMetadatas) {
        return columnMetadatas.filter((columnMetadata) => {
            const tableColumn = tableColumns.find((c) => c.name === columnMetadata.databaseName);
            if (!tableColumn)
                return false; // we don't need new columns, we only need exist and changed
            const isColumnChanged = tableColumn.name !== columnMetadata.databaseName ||
                tableColumn.type !== this.normalizeType(columnMetadata) ||
                tableColumn.length !== columnMetadata.length ||
                tableColumn.precision !== columnMetadata.precision ||
                tableColumn.scale !== columnMetadata.scale ||
                this.normalizeDefault(columnMetadata) !== tableColumn.default ||
                tableColumn.isPrimary !== columnMetadata.isPrimary ||
                tableColumn.isNullable !== columnMetadata.isNullable ||
                tableColumn.generatedType !== columnMetadata.generatedType ||
                tableColumn.asExpression !== columnMetadata.asExpression ||
                tableColumn.isUnique !==
                    this.normalizeIsUnique(columnMetadata) ||
                (tableColumn.enum &&
                    columnMetadata.enum &&
                    !OrmUtils.isArraysEqual(tableColumn.enum, columnMetadata.enum.map((val) => val + ""))) ||
                (columnMetadata.generationStrategy !== "uuid" &&
                    tableColumn.isGenerated !== columnMetadata.isGenerated);
            // DEBUG SECTION
            // if (isColumnChanged) {
            //     console.log("table:", columnMetadata.entityMetadata.tableName)
            //     console.log(
            //         "name:",
            //         tableColumn.name,
            //         columnMetadata.databaseName,
            //     )
            //     console.log(
            //         "type:",
            //         tableColumn.type,
            //         this.normalizeType(columnMetadata),
            //     )
            //     console.log(
            //         "length:",
            //         tableColumn.length,
            //         columnMetadata.length,
            //     )
            //     console.log(
            //         "precision:",
            //         tableColumn.precision,
            //         columnMetadata.precision,
            //     )
            //     console.log("scale:", tableColumn.scale, columnMetadata.scale)
            //     console.log(
            //         "default:",
            //         this.normalizeDefault(columnMetadata),
            //         columnMetadata.default,
            //     )
            //     console.log(
            //         "isPrimary:",
            //         tableColumn.isPrimary,
            //         columnMetadata.isPrimary,
            //     )
            //     console.log(
            //         "isNullable:",
            //         tableColumn.isNullable,
            //         columnMetadata.isNullable,
            //     )
            //     console.log(
            //         "generatedType:",
            //         tableColumn.generatedType,
            //         columnMetadata.generatedType,
            //     )
            //     console.log(
            //         "asExpression:",
            //         tableColumn.asExpression,
            //         columnMetadata.asExpression,
            //     )
            //     console.log(
            //         "isUnique:",
            //         tableColumn.isUnique,
            //         this.normalizeIsUnique(columnMetadata),
            //     )
            //     console.log(
            //         "enum:",
            //         tableColumn.enum &&
            //             columnMetadata.enum &&
            //             !OrmUtils.isArraysEqual(
            //                 tableColumn.enum,
            //                 columnMetadata.enum.map((val) => val + ""),
            //             ),
            //     )
            //     console.log(
            //         "isGenerated:",
            //         tableColumn.isGenerated,
            //         columnMetadata.isGenerated,
            //     )
            // }
            return isColumnChanged;
        });
    }
    /**
     * Returns true if driver supports RETURNING / OUTPUT statement.
     */
    isReturningSqlSupported() {
        return false;
    }
    /**
     * Returns true if driver supports uuid values generation on its own.
     */
    isUUIDGenerationSupported() {
        return false;
    }
    /**
     * Returns true if driver supports fulltext indices.
     */
    isFullTextColumnTypeSupported() {
        return false;
    }
    /**
     * Creates an escaped parameter.
     */
    createParameter(parameterName, index) {
        // return "$" + (index + 1);
        return "?";
        // return "$" + parameterName;
    }
    // -------------------------------------------------------------------------
    // Protected Methods
    // -------------------------------------------------------------------------
    /**
     * Creates connection with the database.
     */
    createDatabaseConnection() {
        return new Promise((ok, fail) => {
            const options = Object.assign({}, {
                name: this.options.database,
                location: this.options.location,
            }, this.options.extra || {});
            this.sqlite.openDatabase(options, (db) => {
                const databaseConnection = db;
                // we need to enable foreign keys in sqlite to make sure all foreign key related features
                // working properly. this also makes onDelete work with sqlite.
                databaseConnection.executeSql(`PRAGMA foreign_keys = ON`, [], (result) => {
                    ok(databaseConnection);
                }, (error) => {
                    fail(error);
                });
            }, (error) => {
                fail(error);
            });
        });
    }
    /**
     * If driver dependency is not given explicitly, then try to load it via "require".
     */
    loadDependencies() {
        try {
            const sqlite = this.options.driver || require("react-native-sqlite-storage");
            this.sqlite = sqlite;
        }
        catch (e) {
            throw new DriverPackageNotInstalledError("React-Native", "react-native-sqlite-storage");
        }
    }
}

//# sourceMappingURL=ReactNativeDriver.js.map
