import ModelQuery, {SelectFieldValue, WhereOperator} from "../src/db/ModelQuery";
import ModelFactory from "../src/db/ModelFactory";
import Model from "../src/db/Model";

describe('Test ModelQuery', () => {
    test('select', () => {
        const query = ModelQuery.select({table: 'model'} as unknown as ModelFactory<Model>, 'f1', '"Test" as f2')
            .where('f4', 'v4');
        expect(query.toString(true)).toBe('SELECT `model`.`f1`,"Test" as f2 FROM `model` WHERE `f4`=?');
        expect(query.variables).toStrictEqual(['v4']);
    });

    test('order by', () => {
        const query = ModelQuery.select({table: 'model'} as unknown as ModelFactory<Model>)
            .sortBy('model.f2', 'ASC');
        expect(query.toString(true)).toBe('SELECT `model`.* FROM `model` ORDER BY `model`.`f2` ASC');

        const queryRaw = ModelQuery.select({table: 'model'} as unknown as ModelFactory<Model>)
            .sortBy('coalesce(model.f1, model.f2)', 'ASC', true);
        expect(queryRaw.toString(true)).toBe('SELECT `model`.* FROM `model` ORDER BY coalesce(model.f1, model.f2) ASC');
    });

    test('update', () => {
        const query = ModelQuery.update({table: 'model'} as unknown as ModelFactory<Model>, {
            'f1': 'v1',
            'f2': 'v2',
            'f3': 'v3',
        }).where('f4', 'v4');
        expect(query.toString(true)).toBe('UPDATE `model` SET `model`.`f1`=?,`model`.`f2`=?,`model`.`f3`=? WHERE `f4`=?');
        expect(query.variables).toStrictEqual(['v1', 'v2', 'v3', 'v4']);
    });

    test('function select', () => {
        const query = ModelQuery.select({table: 'model'} as unknown as ModelFactory<Model>, 'f1', new SelectFieldValue('_count', 'COUNT(*)', true));
        expect(query.toString(true)).toBe('SELECT `model`.`f1`,(COUNT(*)) AS `_count` FROM `model`');
        expect(query.variables).toStrictEqual([]);
    });

    test('pivot', () => {
        const query = ModelQuery.select({table: 'model'} as unknown as ModelFactory<Model>, 'f1');
        query.pivot('pivot.f2', 'f3');

        expect(query.toString(true)).toBe('SELECT `model`.`f1`,`pivot`.`f2`,`model`.`f3` FROM `model`');
        expect(query.variables).toStrictEqual([]);
    });

    test('groupWhere generates proper query', () => {
        const query = ModelQuery.select({table: 'model'} as unknown as ModelFactory<Model>, '*');
        query.where('f1', 'v1');
        query.groupWhere(q => q.where('f2', 'v2').where('f3', 'v3')
            .groupWhere(q => q.where('f4', 'v4'), WhereOperator.OR))
            .where('f5', 'v5');

        expect(query.toString(true)).toBe('SELECT `model`.* FROM `model` WHERE `f1`=? AND (`f2`=? AND `f3`=? OR (`f4`=?)) AND `f5`=?');
        expect(query.variables).toStrictEqual(['v1', 'v2', 'v3', 'v4', 'v5']);
    });

    test('recursive queries', () => {
        const query = ModelQuery.select({table: 'model'} as unknown as ModelFactory<Model>, '*');
        query.where('f1', 'v1');
        query.leftJoin('test').on('model.j1', 'test.j2');
        query.recursive({localKey: 'local', foreignKey: 'foreign', idKey: 'foreign'});
        query.sortBy('f2', 'ASC').limit(8);

        expect(query.toString(true)).toBe("WITH RECURSIVE cte AS (SELECT `model`.*,1 AS __depth, ARRAY[`foreign`] AS __path FROM `model` WHERE `f1`=? UNION SELECT o.*, c.__depth + 1,c.__path || o.`foreign` FROM `model` AS o, cte AS c WHERE o.`foreign`=c.`local`) SELECT * FROM cte LEFT JOIN `test` ON `model`.`j1`=`test`.`j2` ORDER BY `f2` ASC LIMIT 8");
        expect(query.variables).toStrictEqual(['v1']);
    });

    test('union queries', () => {
        const query = ModelQuery.select({table: 'model'} as unknown as ModelFactory<Model>, '*');
        const query2 = ModelQuery.select({table: 'model2'} as unknown as ModelFactory<Model>, '*');
        query2.where('f2', 'v2');
        query.union(query2, 'model.f1', 'DESC', false, 8);

        expect(query.toString(true)).toBe("(SELECT `model`.* FROM `model`) UNION (SELECT `model2`.* FROM `model2` WHERE `f2`=?) ORDER BY `model`.`f1` DESC LIMIT 8");
        expect(query.variables).toStrictEqual(['v2'])
    });
});