// Scratch repos for the query and index tests (C2-05a). They are built under tmpdir(), as helpers.mjs
// repo() does; the gate sets TMPDIR under /mnt/storage/scratch/tmp, never /tmp (RULINGS "tmpdir flag").
// Bodies are made up.
import { mkdirSync, mkdtempSync, rmSync, writeFileSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { dirname, join } from 'node:path';
import { git } from './helpers.mjs';

// A repo with one commit holding `files` (path -> text). Removed when the test ends.
export function scratchRepo(t, files) {
  const root = mkdtempSync(join(tmpdir(), 'r216-'));
  t.after(() => rmSync(root, { recursive: true, force: true }));
  const repo = join(root, 'books');
  mkdirSync(repo);
  git(repo, 'init', '-q', '-b', 'main');
  for (const [path, text] of Object.entries(files)) {
    mkdirSync(dirname(join(repo, path)), { recursive: true });
    writeFileSync(join(repo, path), text);
  }
  git(repo, 'add', '-A');
  git(repo, 'commit', '-qm', 'fixture');
  return { root, repo, commit: git(repo, 'rev-parse', 'HEAD') };
}

// A note: front matter with a type and a name, optional extra front matter lines, then a body.
export const note = (type, name, body = '', extra = []) => ['---', `type: ${type}`, `name: ${name}`, ...extra, '---', body, ''].join('\n');

// The one exclusion the hybrid tests use, and the paths it hides. C2-15 (row 267) replaces the reading of
// `exclude` (a path prefix today); swapping these two constants is the whole change to the tests.
export const EXCLUSION = { exclude: 'Book One/Research' };
export const EXCLUDED_PATHS = ['Book One/Research/Ferry Logs.md'];

// C2-05c: synthetic scope fixture, including same-prefix precedence and a draft.
export const SUPPORT_FILES = {
  'Book One/Characters/Canon.md': note('character', 'Canon', 'Scope fixture canon.'),
  'Book One/Playground/Plan.md': note('summary', 'Plan', 'Scope fixture playground.'),
  'Book One/Support/Notes/Helper.md': note('summary', 'Helper', 'Scope fixture supporting.'),
  'Notes/HarborSupport/Loose.md': note('summary', 'Loose', 'Scope fixture supporting loose.'),
  'Drafts/Idea/Support/Seed.md': note('summary', 'Seed', 'Scope fixture supporting draft.'),
};
export const withSupporting = entry => ({
  ...entry,
  universes: {
    ...entry.universes,
    harbor: { ...entry.universes.harbor,
      playground: [...entry.universes.harbor.playground, 'Book One/Support/'],
      supporting: ['Book One/Support/', 'Notes/HarborSupport/'] },
    idea: { kind: 'draft', name: 'Idea', playground: ['Drafts/Idea/'], supporting: ['Drafts/Idea/Support/'] },
  },
});