// allow-test-rule: source-text-is-the-product
// Reads .md/.json/.yml product files whose deployed text IS what the
// runtime loads — testing text content tests the deployed contract.

/**
 * Installer Module — Sections 6–8 + 12.
 *
 * Covers: installRuntimeArtifacts parameterised layout loop,
 * uninstallRuntimeArtifacts all runtimes, Contract 6 counter-test
 * (unknown runtime rejected), and legacy migration tests.
 *
 * Consolidates (original sources from #3758):
 *   install-uninstall-layout-loop.test.cjs
 *
 * Closes #3758
 */

'use strict';

process.env.GSD_TEST_MODE = '1';

const { test, describe } = require('node:test');
const assert = require('node:assert/strict');
const fs = require('node:fs');
const path = require('node:path');

const { createTempDir, cleanup } = require('./helpers.cjs');

const {
  installRuntimeArtifacts,
  parseRuntimeInput,
  allRuntimes,
} = require('../bin/install.js');

const {
  resolveRuntimeArtifactLayout,
} = require('../get-shit-done/bin/lib/runtime-artifact-layout.cjs');

const {
  loadSkillsManifest,
  resolveProfile,
} = require('../get-shit-done/bin/lib/install-profiles.cjs');

const REAL_COMMANDS_DIR = path.join(__dirname, '..', 'commands', 'gsd');
const MANIFEST = loadSkillsManifest(REAL_COMMANDS_DIR);
const RESOLVED_CORE = resolveProfile({ modes: ['core'], manifest: MANIFEST });

// ─── Section 6: installRuntimeArtifacts — parameterised layout loop ──────────

const SKILLS_RUNTIMES_LAYOUT = [
  'claude', 'cursor', 'codex', 'copilot', 'antigravity',
  'windsurf', 'augment', 'trae', 'qwen', 'codebuddy',
];

const ALL_RUNTIMES_LAYOUT = [
  'claude', 'cursor', 'gemini', 'codex', 'copilot', 'antigravity',
  'windsurf', 'augment', 'trae', 'qwen', 'hermes', 'codebuddy',
  'cline', 'opencode', 'kilo',
];

function countPrefixedEntries(destDir, prefix) {
  if (!fs.existsSync(destDir)) return 0;
  return fs.readdirSync(destDir).filter(n => n.startsWith(prefix)).length;
}

function writeSkillEntry(destDir, prefix, stem) {
  const entryDir = path.join(destDir, `${prefix}${stem}`);
  fs.mkdirSync(entryDir, { recursive: true });
  fs.writeFileSync(path.join(entryDir, 'SKILL.md'), `# ${stem}\n`);
}

function writeCommandEntry(destDir, prefix, stem) {
  fs.mkdirSync(destDir, { recursive: true });
  fs.writeFileSync(path.join(destDir, `${prefix}${stem}.md`), `# ${stem}\n`);
}

describe('installRuntimeArtifacts — skills runtimes write gsd-prefixed skill dirs', () => {
  for (const runtime of SKILLS_RUNTIMES_LAYOUT) {
    test(`${runtime}: gsd-prefixed skill dirs in skills/`, (t) => {
      const configDir = createTempDir(`gsd-ial-${runtime}-`);
      t.after(() => cleanup(configDir));

      assert.strictEqual(typeof installRuntimeArtifacts, 'function');
      installRuntimeArtifacts(runtime, configDir, 'global', RESOLVED_CORE);

      const layout = resolveRuntimeArtifactLayout(runtime, configDir, 'global');
      const skillsKind = layout.kinds.find(k => k.kind === 'skills');
      assert.ok(skillsKind, `${runtime} must have skills kind`);

      const destDir = path.join(configDir, skillsKind.destSubpath);
      assert.ok(fs.existsSync(destDir));
      assert.ok(
        fs.existsSync(path.join(destDir, `${skillsKind.prefix}help`, 'SKILL.md')),
        `${runtime}: ${skillsKind.prefix}help/SKILL.md must exist`
      );

      if (RESOLVED_CORE.skills !== '*') {
        const prefixedCount = countPrefixedEntries(destDir, skillsKind.prefix || 'gsd-');
        assert.strictEqual(prefixedCount, RESOLVED_CORE.skills.size,
          `${runtime}: installed skill count must match profile`);
      }
    });
  }
});

describe('installRuntimeArtifacts — hermes nested layout', () => {
  test('hermes: skills/gsd/<stem>/SKILL.md, no gsd- prefix in name', (t) => {
    const configDir = createTempDir('gsd-ial-hermes-');
    t.after(() => cleanup(configDir));

    installRuntimeArtifacts('hermes', configDir, 'global', RESOLVED_CORE);

    const nestedDir = path.join(configDir, 'skills', 'gsd');
    assert.ok(fs.existsSync(nestedDir));
    assert.ok(fs.existsSync(path.join(nestedDir, 'help', 'SKILL.md')));
    assert.ok(!fs.existsSync(path.join(nestedDir, 'gsd-help')),
      'hermes must NOT have gsd-help prefix');
  });
});

describe('installRuntimeArtifacts — gemini commands layout', () => {
  test('gemini: commands/gsd/ created, no skills/', (t) => {
    const configDir = createTempDir('gsd-ial-gemini-');
    t.after(() => cleanup(configDir));

    installRuntimeArtifacts('gemini', configDir, 'global', RESOLVED_CORE);

    assert.ok(fs.existsSync(path.join(configDir, 'commands', 'gsd')));
    assert.ok(fs.existsSync(path.join(configDir, 'commands', 'gsd', 'help.md')));
    assert.ok(!fs.existsSync(path.join(configDir, 'skills')));
  });
});

describe('installRuntimeArtifacts — cline no-op', () => {
  test('cline: no kinds — call succeeds, no dirs created', (t) => {
    const configDir = createTempDir('gsd-ial-cline-');
    t.after(() => cleanup(configDir));

    assert.doesNotThrow(() => installRuntimeArtifacts('cline', configDir, 'global', RESOLVED_CORE));
    assert.ok(!fs.existsSync(path.join(configDir, 'skills')));
    assert.ok(!fs.existsSync(path.join(configDir, 'commands')));
  });
});

describe('installRuntimeArtifacts — opencode / kilo flat commands', () => {
  for (const runtime of ['opencode', 'kilo']) {
    test(`${runtime}: command/gsd-help.md exists`, (t) => {
      const configDir = createTempDir(`gsd-ial-${runtime}-`);
      t.after(() => cleanup(configDir));

      installRuntimeArtifacts(runtime, configDir, 'global', RESOLVED_CORE);

      const commandDir = path.join(configDir, 'command');
      assert.ok(fs.existsSync(commandDir));
      assert.ok(fs.existsSync(path.join(commandDir, 'gsd-help.md')));
    });
  }
});

// ─── Section 7: uninstallRuntimeArtifacts — all runtimes ─────────────────────

describe('uninstallRuntimeArtifacts — removes gsd-owned entries, preserves foreign', () => {
  for (const runtime of ALL_RUNTIMES_LAYOUT) {
    test(`${runtime}: gsd entries removed, foreign preserved`, (t) => {
      const configDir = createTempDir(`gsd-ual-${runtime}-`);
      t.after(() => cleanup(configDir));

      const { uninstallRuntimeArtifacts } = require('../bin/install.js');
      assert.strictEqual(typeof uninstallRuntimeArtifacts, 'function');

      const layout = resolveRuntimeArtifactLayout(runtime, configDir, 'global');

      if (layout.kinds.length === 0) {
        const foreignDir = path.join(configDir, 'foreign-dir');
        fs.mkdirSync(foreignDir, { recursive: true });
        fs.writeFileSync(path.join(foreignDir, 'keep.md'), '# keep\n');
        assert.doesNotThrow(() => uninstallRuntimeArtifacts(runtime, configDir, 'global'));
        assert.ok(fs.existsSync(path.join(foreignDir, 'keep.md')));
        return;
      }

      if (runtime === 'hermes') {
        const kind = layout.kinds[0];
        const destDir = path.join(configDir, kind.destSubpath);
        fs.mkdirSync(path.join(destDir, 'help'), { recursive: true });
        fs.writeFileSync(path.join(destDir, 'help', 'SKILL.md'), '# help\n');
        const siblingDir = path.join(configDir, 'skills', 'user-skill');
        fs.mkdirSync(siblingDir, { recursive: true });
        fs.writeFileSync(path.join(siblingDir, 'SKILL.md'), '# user\n');

        uninstallRuntimeArtifacts(runtime, configDir, 'global');

        assert.ok(!fs.existsSync(destDir));
        assert.ok(fs.existsSync(path.join(siblingDir, 'SKILL.md')));
        return;
      }

      for (const kind of layout.kinds) {
        const destDir = path.join(configDir, kind.destSubpath);
        fs.mkdirSync(destDir, { recursive: true });
        if (kind.kind === 'skills') {
          writeSkillEntry(destDir, kind.prefix, 'help');
          writeSkillEntry(destDir, kind.prefix, 'phase');
          const foreignDir = path.join(destDir, 'user-custom-skill');
          fs.mkdirSync(foreignDir, { recursive: true });
          fs.writeFileSync(path.join(foreignDir, 'SKILL.md'), '# user\n');
        } else {
          writeCommandEntry(destDir, kind.prefix, 'help');
          writeCommandEntry(destDir, kind.prefix, 'phase');
          fs.writeFileSync(path.join(destDir, 'user-custom.md'), '# user\n');
        }
      }

      uninstallRuntimeArtifacts(runtime, configDir, 'global');

      for (const kind of layout.kinds) {
        const destDir = path.join(configDir, kind.destSubpath);
        if (kind.kind === 'skills') {
          assert.ok(!fs.existsSync(path.join(destDir, `${kind.prefix}help`)));
          assert.ok(!fs.existsSync(path.join(destDir, `${kind.prefix}phase`)));
          assert.ok(fs.existsSync(path.join(destDir, 'user-custom-skill', 'SKILL.md')));
        } else {
          assert.ok(!fs.existsSync(path.join(destDir, `${kind.prefix}help.md`)));
          assert.ok(!fs.existsSync(path.join(destDir, `${kind.prefix}phase.md`)));
          assert.ok(fs.existsSync(path.join(destDir, 'user-custom.md')));
        }
      }
    });
  }
});

// ─── Section 8: Counter-test — unknown runtime is rejected (Contract 6) ──────

describe('Contract 6: unknown runtime is rejected', () => {
  test('resolveRuntimeArtifactLayout throws TypeError for unknown runtime', () => {
    assert.throws(
      () => resolveRuntimeArtifactLayout('unknown-runtime-xyz', '/tmp/test', 'global'),
      (err) => {
        assert.ok(err instanceof TypeError, 'must be TypeError');
        assert.ok(err.message.includes('Unknown runtime'), `message: ${err.message}`);
        return true;
      }
    );
  });

  test('parseRuntimeInput returns ["claude"] for unrecognised string (safe default)', () => {
    // parseRuntimeInput processes menu numbers, not runtime names directly;
    // an unrecognised token falls through to the default ["claude"].
    const result = parseRuntimeInput('unknown-xyz');
    assert.deepStrictEqual(result, ['claude']);
  });

  test('allRuntimes does not include any unrecognised value', () => {
    // Every entry in allRuntimes must be recognised by resolveRuntimeArtifactLayout
    for (const runtime of allRuntimes) {
      assert.doesNotThrow(
        () => resolveRuntimeArtifactLayout(runtime, '/tmp/test', 'global'),
        `${runtime} must be a recognised runtime`
      );
    }
  });
});

// ─── Section 12: Legacy migrations in installRuntimeArtifacts ────────────────

describe('installRuntimeArtifacts — legacy migrations run before layout copy', () => {
  test('claude: legacy commands/gsd/dev-preferences.md migrated AND new skills written', (t) => {
    const configDir = createTempDir('gsd-legacy-install-');
    t.after(() => cleanup(configDir));

    const legacyDir = path.join(configDir, 'commands', 'gsd');
    fs.mkdirSync(legacyDir, { recursive: true });
    fs.writeFileSync(path.join(legacyDir, 'dev-preferences.md'), '# My dev prefs\n');

    installRuntimeArtifacts('claude', configDir, 'global', RESOLVED_CORE);

    assert.ok(!fs.existsSync(legacyDir));
    assert.ok(fs.existsSync(path.join(configDir, 'skills', 'gsd-dev-preferences', 'SKILL.md')));
    assert.ok(fs.existsSync(path.join(configDir, 'skills', 'gsd-help', 'SKILL.md')));
  });

  test('hermes: legacy flat skills/gsd-*/ migrated AND new nested skills/gsd/<stem>/ written', (t) => {
    const configDir = createTempDir('gsd-legacy-hermes-install-');
    t.after(() => cleanup(configDir));

    const legacyFlatHelp = path.join(configDir, 'skills', 'gsd-help');
    fs.mkdirSync(legacyFlatHelp, { recursive: true });
    fs.writeFileSync(path.join(legacyFlatHelp, 'SKILL.md'), '# legacy help\n');

    installRuntimeArtifacts('hermes', configDir, 'global', RESOLVED_CORE);

    assert.ok(!fs.existsSync(legacyFlatHelp));
    assert.ok(fs.existsSync(path.join(configDir, 'skills', 'gsd', 'help', 'SKILL.md')));
  });
});

describe('uninstallRuntimeArtifacts — legacy cleanup runs before layout removal', () => {
  test('hermes: both flat and nested layouts removed', (t) => {
    const { uninstallRuntimeArtifacts } = require('../bin/install.js');
    const configDir = createTempDir('gsd-legacy-uninstall-hermes-');
    t.after(() => cleanup(configDir));

    const skillsDir = path.join(configDir, 'skills');
    const flatHelp = path.join(skillsDir, 'gsd-help');
    fs.mkdirSync(flatHelp, { recursive: true });
    fs.writeFileSync(path.join(flatHelp, 'SKILL.md'), '# legacy flat\n');

    const nestedGsd = path.join(skillsDir, 'gsd');
    fs.mkdirSync(path.join(nestedGsd, 'help'), { recursive: true });
    fs.writeFileSync(path.join(nestedGsd, 'help', 'SKILL.md'), '# nested help\n');

    const userSkill = path.join(skillsDir, 'user-skill');
    fs.mkdirSync(userSkill, { recursive: true });
    fs.writeFileSync(path.join(userSkill, 'SKILL.md'), '# user\n');

    uninstallRuntimeArtifacts('hermes', configDir, 'global');

    assert.ok(!fs.existsSync(flatHelp));
    assert.ok(!fs.existsSync(nestedGsd));
    assert.ok(fs.existsSync(path.join(userSkill, 'SKILL.md')));
  });

  test('claude: legacy commands/gsd/ cleaned AND new skills/ entries removed', (t) => {
    const { uninstallRuntimeArtifacts } = require('../bin/install.js');
    const configDir = createTempDir('gsd-legacy-uninstall-claude-');
    t.after(() => cleanup(configDir));

    const skillsDir = path.join(configDir, 'skills');
    const gsdHelp = path.join(skillsDir, 'gsd-help');
    fs.mkdirSync(gsdHelp, { recursive: true });
    fs.writeFileSync(path.join(gsdHelp, 'SKILL.md'), '# help\n');

    const legacyDir = path.join(configDir, 'commands', 'gsd');
    fs.mkdirSync(legacyDir, { recursive: true });
    fs.writeFileSync(path.join(legacyDir, 'help.md'), '# legacy\n');

    const userSkill = path.join(skillsDir, 'user-skill');
    fs.mkdirSync(userSkill, { recursive: true });
    fs.writeFileSync(path.join(userSkill, 'SKILL.md'), '# user\n');

    uninstallRuntimeArtifacts('claude', configDir, 'global');

    assert.ok(!fs.existsSync(gsdHelp));
    assert.ok(!fs.existsSync(legacyDir));
    assert.ok(fs.existsSync(path.join(userSkill, 'SKILL.md')));
  });
});