import assert from 'node:assert/strict';
import {
  executeMigrationPlan,
  loadMigrationPlan,
  splitSqlStatements
} from '../dist/db/migration-runner.js';

assert.deepEqual(
  splitSqlStatements("SELECT 'a;b'; -- comment\nSELECT `semi;colon`;"),
  ["SELECT 'a;b'", 'SELECT `semi;colon`']
);

const plan = await loadMigrationPlan('up');
assert.equal(plan.direction, 'up');
assert.match(plan.file, /2026061601_m01b_core_schema\.up\.sql/);
assert.match(plan.file, /2026061802_m01c_async_tasks\.up\.sql$/);
assert.match(plan.checksum, /^[a-f0-9]{64}$/);
assert.ok(plan.statements.length >= 11);

const calls = [];
const fakePool = {
  async query(sql) {
    calls.push(sql);
    return [{ affectedRows: 1 }, []];
  }
};

const dryRun = await executeMigrationPlan(fakePool, plan, true);
assert.equal(dryRun.executed, false);
assert.equal(calls.length, 0);

const liveResult = await executeMigrationPlan(fakePool, {
  direction: 'up',
  file: 'test.sql',
  checksum: 'test',
  statements: ['SELECT 1', 'SELECT 2']
});
assert.equal(liveResult.executed, true);
assert.equal(liveResult.affectedRows, 2);
assert.deepEqual(calls, ['SELECT 1', 'SELECT 2']);

await assert.rejects(
  () => executeMigrationPlan({
    async query() {
      return [[], []];
    }
  }, {
    direction: 'verify',
    file: 'verify.sql',
    checksum: 'test',
    statements: ['SELECT table_name']
  }),
  /returned fewer than 10 rows/
);

console.log('PASS: migration runner plan, parser and execution contracts are present.');