import { CONSTANT_PLUGIN_TYPES } from './app.constant';

BI.provider('dec.connection.provider.datebase', function() {
    this.resolves = {};

    // 原service中resolveUrlInfo方法
    function jdbcResolve (url: string) {
        if (BI.isNull(url)) return {};
        const oracleUlr = url.match(/^jdbc:(oracle):(thin:([0-9a-zA-Z/]*)?@|thin:([0-9a-zA-Z/]*)?@\/\/|\/\/|)([0-9a-zA-Z_\\.-]+)(:([0-9|port]+))?(:|\/)([^]+)(.*)/i);
        if (oracleUlr) {
            return {
                host: oracleUlr[5],
                port: oracleUlr[7] === 'port' ? '' : oracleUlr[7],
                databaseName: oracleUlr[9],
                urlInfo: oracleUlr[10],
            };
        }
    
        const greenplumUrl = url.match(/^jdbc:(pivotal:greenplum):(thin:([0-9a-zA-Z/]*)?@\/\/|\/\/|)([0-9a-zA-Z_\\.-]+)(:([0-9|port]+))?(\/|;)([^]+)(.*)/i);
        if (greenplumUrl) {
            return {
                host: greenplumUrl[4],
                port: greenplumUrl[6] === 'port' ? '' : greenplumUrl[6],
                databaseName: greenplumUrl[8],
                urlInfo: greenplumUrl[9],
            };
        }
        const result = url.match(/^jdbc:(mysql|sqlserver|db2|impala|kylin|phoenix|derby|gbase|gbasedbt-sqli|informix-sqli|h2|postgresql|hive2|vertica|kingbase|presto|redshift|postgresql|clickhouse):(thin:([0-9a-zA-Z/]*)?@|thin:([0-9a-zA-Z/]*)?@\/\/|\/\/|)([0-9a-zA-Z_\\.-]+)(:([0-9|port]+))?(\/|;DatabaseName=)?([^]+)?(.*)/i);
        if (result) {
            return {
                host: result[5],
                port: result[7] === 'port' ? '' : result[7],
                databaseName: result[9] || '',
                urlInfo: result[10],
            };
        }
    
        // 处理oracle的RAC方式
        if (/^jdbc:oracle:thin:([0-9a-zA-Z/]*)?@\(DESCRIPTION/i.test(url)) {
            const host = url.match(/\(HOST\s*=\s*([0-9a-zA-Z_\\.-]+)\)/i);
            const port = url.match(/\(PORT\s*=\s*([0-9]+)\)/i);
            const databaseName = url.match(/\(SERVICE_NAME\s*=\s*([\s0-9a-zA-Z_\\.]+)\)/i);
            
            return {
                host: host ? host[1] : '',
                port: port && port[1] !== 'port' ? port[1] : '',
                databaseName: databaseName ? databaseName[1] : '',
                urlInfo: '',
            };
        }
        
        return {
            host: '',
            port: '',
            databaseName: '',
            urlInfo: '',
        };
    }

    this.registerDatabaseType = (config: any) => {
        BI.config(CONSTANT_PLUGIN_TYPES, connections => BI.concat(connections, config));
    };
    
    this.registerJdbcDatabase = (config: any, resolve?: Function) => {
        BI.config(CONSTANT_PLUGIN_TYPES, connections => BI.concat(connections, { ...config, type: 'jdbc' }));
    
        BI.isFunction(resolve) && (this.resolves[config.databaseType] = resolve);
    };

    this.$get = () => BI.inherit(BI.OB, {
        getJdbcResolveByType: (type: string) => this.resolves[type] || jdbcResolve,
        customDatabaseType: BI.Constants.getConstant(CONSTANT_PLUGIN_TYPES),
    });
});