import assert from 'node:assert/strict';
import { readFileSync } from 'node:fs';
import { fileURLToPath } from 'node:url';
import { dirname, join } from 'node:path';

const currentDir = dirname(fileURLToPath(import.meta.url));
const migration = readFileSync(join(currentDir, '202606230001_create_visa_schema.sql'), 'utf8');

const requiredTables = [
  'models',
  'model_versions',
  'visa_agents',
  'visa_variables',
  'visa_sensing_relations',
  'visa_sensing_variables',
  'visa_internal_functions',
  'visa_function_inputs',
  'visa_function_updates',
  'visa_associated_data',
  'visa_inputs',
  'visa_outputs',
  'visa_schedule_steps',
  'visa_termination_conditions',
  'visa_validations',
  'visa_consistency_check_results',
];

for (const table of requiredTables) {
  assert.match(migration, new RegExp(`create table if not exists ${table}`, 'i'), `${table} table missing`);
}

const requiredForeignKeys = [
  'references model_versions',
  'references visa_agents',
  'references visa_variables',
  'references visa_sensing_relations',
  'references visa_internal_functions',
  'references visa_associated_data',
];

for (const foreignKey of requiredForeignKeys) {
  assert.match(migration, new RegExp(foreignKey, 'i'), `${foreignKey} foreign key missing`);
}

const requiredIndexes = [
  'idx_visa_agents_model_version',
  'idx_visa_variables_agent',
  'idx_visa_sensing_observer',
  'idx_visa_functions_agent',
  'idx_visa_schedule_model_version',
  'idx_visa_checks_model_version',
];

for (const indexName of requiredIndexes) {
  assert.match(migration, new RegExp(`create index if not exists ${indexName}`, 'i'), `${indexName} index missing`);
}

assert.match(migration, /unique \(model_version_id, function_code\)/i);
assert.match(migration, /unique \(model_version_id, validation_code\)/i);
assert.match(migration, /check \(status in \('draft', 'checked', 'released', 'archived'\)\)/i);

console.log('visa schema migration tests passed');