import FlinkSQL from "../../../../src/parser/flinksql";
import { readSQL } from "../../../helper";

const parser = new FlinkSQL();

const features = {
    base: readSQL(__dirname, "select.sql"),
    withClause: readSQL(__dirname, "selectWithClause.sql"),
    distinct: readSQL(__dirname, "selectDistinct.sql"),
    windowTVF: readSQL(__dirname, "selectWindowTVF.sql"),
    aggregation: readSQL(__dirname, "selectAggregation.sql"),
    join: readSQL(__dirname, "selectJoin.sql"),
    setOperation: readSQL(__dirname, "selectSetOperations.sql"),
    pattern: readSQL(__dirname, "selectPatternRecognition.sql")
};

describe("FlinkSQL Query Statement Tests", () => {
    describe("Base Select", () => {
        features.base.forEach((sql) => {
            it(sql, () => {
                expect(parser.validate(sql).length).toBe(0);
            });
        });
    });

    describe("With Clause Select", () => {
        features.withClause.forEach((sql) => {
            it(sql, () => {
                expect(parser.validate(sql).length).toBe(0);
            });
        });
    });

    
    describe("Select DISTINCT", () => {
        features.distinct.forEach((sql) => {
            it(sql, () => {
                expect(parser.validate(sql).length).toBe(0);
            });
        })
    })

    describe("Select Window TVF", () => {
        features.windowTVF.forEach((sql) => {
            it(sql, () => {
                expect(parser.validate(sql).length).toBe(0);
            });
        })
    })

    describe("Select Aggregation", () => {
        features.aggregation.forEach((sql) => {
            it(sql, () => {
                expect(parser.validate(sql).length).toBe(0);
            });
        })
    })

    describe("Select Join", () => {
        features.join.forEach((sql) => {
            it(sql, () => {
                expect(parser.validate(sql).length).toBe(0);
            });
        })
    })

    describe("Select Set Operations", () => {
        features.setOperation.forEach((sql) => {
            it(sql, () => {
                expect(parser.validate(sql).length).toBe(0);
            });
        })
    })

    describe("Select Pattern Recognition", () => {
        features.pattern.forEach((sql) => {
            it(sql, () => {
                expect(parser.validate(sql).length).toBe(0);
            });
        })
    })
});