import { test } from 'node:test';
import assert from 'node:assert/strict';
import { readFile } from 'node:fs/promises';
import { fileURLToPath } from 'node:url';
import { dirname, resolve } from 'node:path';
import { TRANSLATIONS } from '../../scanners/lib/humanizer-data.mjs';

const __dirname = dirname(fileURLToPath(import.meta.url));
const FORBIDDEN_PATH = resolve(__dirname, '..', 'lint-forbidden-words.json');

const EXPECTED_SCANNERS = ['CML', 'SET', 'HKV', 'RUL', 'MCP', 'IMP', 'CNF', 'GAP', 'TOK', 'CPS', 'DIS', 'COL', 'PLH'];

function stripBacktickSpans(s) {
  return s.replace(/`[^`]*`/g, '');
}

async function loadForbidden() {
  const raw = await readFile(FORBIDDEN_PATH, 'utf8');
  return JSON.parse(raw);
}

test('TRANSLATIONS exports an object', () => {
  assert.equal(typeof TRANSLATIONS, 'object');
  assert.ok(TRANSLATIONS !== null);
});

test('TRANSLATIONS covers all 13 expected scanner prefixes', () => {
  for (const prefix of EXPECTED_SCANNERS) {
    assert.ok(TRANSLATIONS[prefix], `missing scanner prefix: ${prefix}`);
  }
});

test('every scanner has a _default fallback with all 3 fields', () => {
  for (const prefix of EXPECTED_SCANNERS) {
    const scanner = TRANSLATIONS[prefix];
    assert.ok(scanner._default, `${prefix} missing _default`);
    assert.ok(typeof scanner._default.title === 'string' && scanner._default.title.length > 0,
      `${prefix} _default missing title`);
    assert.ok(typeof scanner._default.description === 'string' && scanner._default.description.length > 0,
      `${prefix} _default missing description`);
    assert.ok(typeof scanner._default.recommendation === 'string' && scanner._default.recommendation.length > 0,
      `${prefix} _default missing recommendation`);
  }
});

test('every scanner has a static map (may be empty)', () => {
  for (const prefix of EXPECTED_SCANNERS) {
    assert.equal(typeof TRANSLATIONS[prefix].static, 'object',
      `${prefix} missing static map`);
    assert.ok(TRANSLATIONS[prefix].static !== null);
  }
});

test('every scanner has a patterns array (may be empty)', () => {
  for (const prefix of EXPECTED_SCANNERS) {
    assert.ok(Array.isArray(TRANSLATIONS[prefix].patterns),
      `${prefix} patterns must be an array`);
  }
});

test('every static-title entry has all 3 fields', () => {
  for (const prefix of EXPECTED_SCANNERS) {
    const staticMap = TRANSLATIONS[prefix].static;
    for (const [title, t] of Object.entries(staticMap)) {
      assert.ok(typeof t.title === 'string' && t.title.length > 0,
        `${prefix} static["${title}"] missing title`);
      assert.ok(typeof t.description === 'string' && t.description.length > 0,
        `${prefix} static["${title}"] missing description`);
      assert.ok(typeof t.recommendation === 'string' && t.recommendation.length > 0,
        `${prefix} static["${title}"] missing recommendation`);
    }
  }
});

test('every pattern entry has regex + translation with all 3 fields', () => {
  for (const prefix of EXPECTED_SCANNERS) {
    for (const p of TRANSLATIONS[prefix].patterns) {
      assert.ok(p.regex instanceof RegExp,
        `${prefix} pattern missing regex`);
      assert.ok(typeof p.translation.title === 'string' && p.translation.title.length > 0,
        `${prefix} pattern translation missing title`);
      assert.ok(typeof p.translation.description === 'string' && p.translation.description.length > 0,
        `${prefix} pattern translation missing description`);
      assert.ok(typeof p.translation.recommendation === 'string' && p.translation.recommendation.length > 0,
        `${prefix} pattern translation missing recommendation`);
    }
  }
});

test('no translated string contains tier1 forbidden words (outside backtick spans)', async () => {
  const data = await loadForbidden();
  const tier1Words = data.tier1.map((e) => e.word);
  const violations = [];

  for (const prefix of EXPECTED_SCANNERS) {
    const scanner = TRANSLATIONS[prefix];
    const allTranslations = [
      scanner._default,
      ...Object.values(scanner.static),
      ...scanner.patterns.map((p) => p.translation),
    ];

    for (const t of allTranslations) {
      for (const field of ['title', 'description', 'recommendation']) {
        const text = stripBacktickSpans(t[field]).toLowerCase();
        for (const word of tier1Words) {
          const lower = word.toLowerCase();
          // word-boundary match for single words, plain substring for multi-word phrases
          const re = lower.includes(' ')
            ? new RegExp(lower.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'))
            : new RegExp(`\\b${lower.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')}\\b`);
          if (re.test(text)) {
            violations.push(`${prefix} ${field}: "${word}" in "${t[field]}"`);
          }
        }
      }
    }
  }

  assert.equal(violations.length, 0,
    `tier1 violations:\n  ${violations.slice(0, 20).join('\n  ')}`);
});

test('no translated string contains tier3 jargon (outside backtick spans)', async () => {
  const data = await loadForbidden();
  const tier3Words = data.tier3.map((e) => e.word);
  const violations = [];

  for (const prefix of EXPECTED_SCANNERS) {
    const scanner = TRANSLATIONS[prefix];
    const allTranslations = [
      scanner._default,
      ...Object.values(scanner.static),
      ...scanner.patterns.map((p) => p.translation),
    ];

    for (const t of allTranslations) {
      for (const field of ['title', 'description', 'recommendation']) {
        const text = stripBacktickSpans(t[field]);
        for (const word of tier3Words) {
          const lower = word.toLowerCase();
          const re = lower.includes(' ') || lower.includes('/') || lower.includes('-') || lower.includes('.')
            ? new RegExp(lower.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'), 'i')
            : new RegExp(`\\b${lower.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')}\\b`, 'i');
          if (re.test(text)) {
            violations.push(`${prefix} ${field}: "${word}" in "${t[field]}"`);
          }
        }
      }
    }
  }

  assert.equal(violations.length, 0,
    `tier3 violations (jargon outside backticks):\n  ${violations.slice(0, 20).join('\n  ')}`);
});

test('CML, SET, HKV, RUL, MCP, IMP, GAP, TOK, PLH have non-empty static maps', () => {
  // These scanners produce findings with titles we documented. Empty static map suggests missed coverage.
  for (const prefix of ['CML', 'SET', 'HKV', 'RUL', 'MCP', 'IMP', 'GAP', 'TOK', 'PLH']) {
    const count = Object.keys(TRANSLATIONS[prefix].static).length;
    assert.ok(count > 0, `${prefix}.static is empty — expected at least 1 translated title`);
  }
});

test('CNF, COL, PLH have at least one pattern entry (template-literal titles)', () => {
  // These scanners use template-literal titles for some findings.
  for (const prefix of ['CNF', 'COL', 'PLH']) {
    assert.ok(TRANSLATIONS[prefix].patterns.length > 0,
      `${prefix} expected ≥1 pattern entry for template-literal titles`);
  }
});

test('TRANSLATIONS does not mutate when re-imported (deep-frozen-ish)', async () => {
  // Quick sanity — translate object reference equality between imports
  const { TRANSLATIONS: t2 } = await import('../../scanners/lib/humanizer-data.mjs');
  assert.equal(t2, TRANSLATIONS, 'TRANSLATIONS reference should be stable across imports');
});