-- Copyright (c) Microsoft Corporation.
-- Licensed under the PostgreSQL License.

-- From: 43_connection_limit_defaults
-- Tests: default GUC values allow concurrent workflows to succeed (standard phase)
-- Runs as postgres; no special user context needed for this test
-- Note: phase-specific connection limit tests (backpressure, timeout, startup) remain
--       in separate files (44, 45, 46) that require different GUC configurations

DROP TABLE IF EXISTS test_connlimit_log;
CREATE TABLE test_connlimit_log (id SERIAL, wf TEXT, ts TIMESTAMP DEFAULT now());

CREATE TEMP TABLE _test_state (instance_id TEXT, label TEXT);

INSERT INTO _test_state
SELECT df.start(
    'INSERT INTO test_connlimit_log (wf) VALUES (''wf1'')',
    'test-connlimit-defaults-1'
), 'wf1';

INSERT INTO _test_state
SELECT df.start(
    'INSERT INTO test_connlimit_log (wf) VALUES (''wf2'')',
    'test-connlimit-defaults-2'
), 'wf2';

INSERT INTO _test_state
SELECT df.start(
    'INSERT INTO test_connlimit_log (wf) VALUES (''wf3'')',
    'test-connlimit-defaults-3'
), 'wf3';

INSERT INTO _test_state
SELECT df.start(
    'INSERT INTO test_connlimit_log (wf) VALUES (''wf4'')',
    'test-connlimit-defaults-4'
), 'wf4';

INSERT INTO _test_state
SELECT df.start(
    'INSERT INTO test_connlimit_log (wf) VALUES (''wf5'')',
    'test-connlimit-defaults-5'
), 'wf5';

DO $$
DECLARE
    rec RECORD;
    status TEXT;
    cnt INT;
BEGIN
    FOR rec IN SELECT instance_id, label FROM _test_state LOOP
        SELECT df.await_instance(rec.instance_id, 30) INTO status;

        IF status != 'completed' THEN
            RAISE EXCEPTION 'TEST FAILED [%]: status = %', rec.label, status;
        END IF;
    END LOOP;

    SELECT COUNT(*) INTO cnt FROM test_connlimit_log;
    IF cnt != 5 THEN
        RAISE EXCEPTION 'TEST FAILED: expected 5 rows, got %', cnt;
    END IF;

    RAISE NOTICE 'PASSED: all 5 workflows completed under default connection limits';
END $$;

DROP TABLE _test_state;
DROP TABLE test_connlimit_log;
SELECT 'TEST PASSED' AS result;