import assert from 'node:assert/strict';
import { readFileSync } from 'node:fs';
import { join } from 'node:path';
import test from 'node:test';

const storeSource = () => readFileSync(join(process.cwd(), 'stores/useRequirementStore.ts'), 'utf8');
const pageSource = () => readFileSync(join(process.cwd(), 'app/requirements/page.tsx'), 'utf8');
const productDetailPage = () => readFileSync(join(process.cwd(), 'app/products/[id]/page.tsx'), 'utf8');
const projectDetailPage = () => readFileSync(join(process.cwd(), 'app/projects/[id]/page.tsx'), 'utf8');

function storeMethodBody(text: string, name: string) {
  const start = text.indexOf(`    ${name}:`);
  assert.notEqual(start, -1, `missing store method ${name}`);

  let depth = 0;
  let sawFirstBrace = false;
  for (let i = start; i < text.length; i += 1) {
    const char = text[i];
    if (char === '{') {
      depth += 1;
      sawFirstBrace = true;
    }
    if (char === '}') {
      depth -= 1;
      if (sawFirstBrace && depth === 0) {
        return text.slice(start, i + 1);
      }
    }
  }

  throw new Error(`could not extract store method ${name}`);
}

test('requirement store imports domain requirement write helpers', () => {
  const text = storeSource();

  assert.match(text, /from '@\/lib\/domain-api'/);
  assert.match(text, /createRequirementByProductId/);
  assert.match(text, /updateRequirementByProductId/);
  assert.match(text, /deleteRequirementByProductId/);
});

test('requirement mutations use domain APIs instead of AppData requirements saves', () => {
  const text = storeSource();
  const createRequirement = storeMethodBody(text, 'createRequirement');
  const updateRequirement = storeMethodBody(text, 'updateRequirement');
  const deleteRequirement = storeMethodBody(text, 'deleteRequirement');

  assert.match(createRequirement, /createRequirementByProductId\(newReq\.productId,/);
  assert.match(updateRequirement, /updateRequirementByProductId\(productId, id,/);
  assert.match(deleteRequirement, /deleteRequirementByProductId\(productId, id\)/);
  assert.doesNotMatch(createRequirement, /saveServerData\('requirements'/);
  assert.doesNotMatch(updateRequirement, /saveServerData\('requirements'/);
  assert.doesNotMatch(deleteRequirement, /saveServerData\('requirements'/);
});

test('requirement dictionaries use governance dictionaries instead of AppData requirement saves', () => {
  const text = storeSource();
  const fetchRequirements = storeMethodBody(text, 'fetchRequirements');
  const addType = storeMethodBody(text, 'addType');
  const updateType = storeMethodBody(text, 'updateType');
  const deleteType = storeMethodBody(text, 'deleteType');
  const addSourceTarget = storeMethodBody(text, 'addSourceTarget');
  const addPlatform = storeMethodBody(text, 'addPlatform');

  assert.match(fetchRequirements, /loadRequirementGovernanceDictionaries/);
  assert.match(addType, /createGovernanceDictionary\('requirement_type'/);
  assert.match(updateType, /updateGovernanceDictionary\('requirement_type'/);
  assert.match(deleteType, /deleteGovernanceDictionary\('requirement_type'/);
  assert.match(addSourceTarget, /createGovernanceDictionary\('requirement_source'/);
  assert.match(addPlatform, /createGovernanceDictionary\('requirement_platform'/);
  for (const body of [addType, updateType, deleteType, addSourceTarget, addPlatform]) {
    assert.doesNotMatch(body, /saveServerData\('requirements'/);
  }
});

test('requirement pool no longer exposes local dictionary management drawers', () => {
  const page = pageSource();
  const modal = readFileSync(join(process.cwd(), 'components/requirement/RequirementModal.tsx'), 'utf8');

  assert.doesNotMatch(page, /SourceDrawer|DictDrawer/);
  assert.doesNotMatch(page, /setDrawerType/);
  assert.doesNotMatch(modal, /onOpenDrawer/);
});

test('requirement pool uses server pagination without full AppData load for scoped list queries', () => {
  const text = pageSource();

  assert.match(text, /loadV22RequirementsPage\(v22RequirementQuery\)/);
  assert.match(text, /if \(v22RequirementQuery && !v22RequirementsFailed\) return;\s+void hydrateRequirementStoreFallback\(\);/);
  assert.doesNotMatch(text, /fetchRequirements\(\);/);
  assert.doesNotMatch(text, /fetchDevTasks\(\);/);
});

test('requirement store can hydrate scoped relation rows for product and project pages', () => {
  const text = storeSource();
  const fetchRequirements = storeMethodBody(text, 'fetchRequirements');

  assert.match(text, /loadV22RequirementsPage/);
  assert.match(fetchRequirements, /options\?\.productId/);
  assert.match(fetchRequirements, /mergeRequirementsForScope/);
  assert.doesNotMatch(fetchRequirements, /loadServerData<[^>]+>\('requirements'/);
});

test('product and project detail pages request scoped requirement relation rows', () => {
  const productPage = productDetailPage();
  const projectPage = projectDetailPage();

  assert.match(productPage, /fetchRequirements\(\{ productId \}\)/);
  assert.doesNotMatch(productPage, /fetchRequirements\(\);/);

  assert.match(projectPage, /fetchRequirements\(\{ productId: project\.productId, projectId \}\)/);
  assert.doesNotMatch(projectPage, /fetchRequirements\(\);/);
});

test('relation-backed requirement rows remain mutable without AppData identity', () => {
  const text = pageSource();

  assert.match(text, /const canMutateRequirement = \(req: Requirement\) => Boolean\(req\.productId\);/);
  assert.doesNotMatch(text, /appDataRequirementIds\.has\(req\.id\)/);
});