// Tests for the atomic plugin-release helper.
// Pure planner is the unit under test — the I/O shell (read files, git tag/commit/push)
// is exercised by the CLI against the live tree, not here.
import { test } from 'node:test';
import assert from 'node:assert/strict';
import { planRelease, reconcileReadmeLabel, preflightErrors, applyRelease, shouldCreateTag } from './release-plugin.mjs';
import { classifyPlugin } from './check-versions.mjs';

const marketplace = () => ({
  name: 'ktg-plugin-marketplace',
  plugins: [
    { name: 'alpha', source: { source: 'url', url: 'https://x/alpha.git', ref: 'v1.0.0' }, description: 'a' },
    { name: 'beta', source: { source: 'url', url: 'https://x/beta.git', ref: 'v2.3.0' }, description: 'b' },
  ],
});

const observed = (o = {}) => ({
  pluginVersion: '1.1.0',
  readmeBadge: '1.1.0',
  tags: ['v1.1.0', 'v1.0.0'],
  ...o,
});

test('READY: consistent plugin, tag exists, catalog ref behind → bump planned', () => {
  const p = planRelease({ marketplace: marketplace(), name: 'alpha', observed: observed() });
  assert.equal(p.verdict, 'READY');
  assert.equal(p.targetVersion, '1.1.0');
  assert.equal(p.currentRef, 'v1.0.0');
  assert.equal(p.newRef, 'v1.1.0');
  assert.deepEqual(p.blockers, []);
  assert.equal(p.commitSubject, 'chore(catalog): bump alpha v1.0.0 -> v1.1.0');
});

test('READY plan bumps ONLY the target plugin and does not mutate the input', () => {
  const mkt = marketplace();
  const p = planRelease({ marketplace: mkt, name: 'alpha', observed: observed() });
  // input untouched
  assert.equal(mkt.plugins[0].source.ref, 'v1.0.0');
  // output bumped on alpha only
  const out = p.newMarketplace.plugins;
  assert.equal(out.find(x => x.name === 'alpha').source.ref, 'v1.1.0');
  assert.equal(out.find(x => x.name === 'beta').source.ref, 'v2.3.0');
});

test('READY plan is green by construction (post-bump classifyPlugin is OK)', () => {
  const o = observed();
  const p = planRelease({ marketplace: marketplace(), name: 'alpha', observed: o });
  const post = classifyPlugin({
    name: 'alpha', catalogRef: p.newRef,
    pluginVersion: o.pluginVersion, readmeBadge: o.readmeBadge, tags: o.tags,
  });
  assert.equal(post.status, 'OK');
});

test('explicit --version targets that version when consistent', () => {
  const o = observed({ pluginVersion: '1.1.0', readmeBadge: '1.1.0', tags: ['v1.1.0', 'v1.0.0'] });
  const p = planRelease({ marketplace: marketplace(), name: 'alpha', observed: o, targetVersion: '1.1.0' });
  assert.equal(p.verdict, 'READY');
  assert.equal(p.newRef, 'v1.1.0');
});

test('NOOP: catalog ref already pins the target version', () => {
  const o = observed({ pluginVersion: '1.0.0', readmeBadge: '1.0.0', tags: ['v1.0.0'] });
  const p = planRelease({ marketplace: marketplace(), name: 'alpha', observed: o });
  assert.equal(p.verdict, 'NOOP');
  assert.equal(p.newRef, 'v1.0.0');
  assert.equal(p.newMarketplace, null);
});

test('BLOCKED: target version has no git tag in the plugin repo', () => {
  const o = observed({ pluginVersion: '1.1.0', readmeBadge: '1.1.0', tags: ['v1.0.0'] }); // no v1.1.0
  const p = planRelease({ marketplace: marketplace(), name: 'alpha', observed: o });
  assert.equal(p.verdict, 'BLOCKED');
  assert.ok(p.blockers.some(b => /tag v1\.1\.0/.test(b) && /not found|tag the plugin/.test(b)));
  assert.equal(p.newMarketplace, null);
});

test('BLOCKED: plugin.json version != target (asked to release an undeclared version)', () => {
  const o = observed({ pluginVersion: '1.1.0', readmeBadge: '1.1.0', tags: ['v1.2.0', 'v1.1.0'] });
  const p = planRelease({ marketplace: marketplace(), name: 'alpha', observed: o, targetVersion: '1.2.0' });
  assert.equal(p.verdict, 'BLOCKED');
  assert.ok(p.blockers.some(b => /plugin\.json/.test(b) && /1\.1\.0/.test(b)));
});

test('BLOCKED: README badge disagrees with plugin.json (internal corruption)', () => {
  const o = observed({ pluginVersion: '1.1.0', readmeBadge: '1.0.0', tags: ['v1.1.0'] });
  const p = planRelease({ marketplace: marketplace(), name: 'alpha', observed: o });
  assert.equal(p.verdict, 'BLOCKED');
  assert.ok(p.blockers.some(b => /badge/i.test(b)));
});

test('BLOCKED: plugin not present in the catalog', () => {
  const p = planRelease({ marketplace: marketplace(), name: 'ghost', observed: observed() });
  assert.equal(p.verdict, 'BLOCKED');
  assert.ok(p.blockers.some(b => /not in (the )?catalog/i.test(b)));
  assert.equal(p.currentRef, null);
});

test('BLOCKED: target version cannot be resolved (no --version, no plugin.json)', () => {
  const o = observed({ pluginVersion: null });
  const p = planRelease({ marketplace: marketplace(), name: 'alpha', observed: o });
  assert.equal(p.verdict, 'BLOCKED');
  assert.ok(p.blockers.some(b => /resolve.*version|version.*not/i.test(b)));
});

// --- reconcileReadmeLabel: keeps the catalog README label in lock-step with the ref ---

test('reconcileReadmeLabel bumps only the target plugin heading label', () => {
  const readme = [
    '### [Config-Audit](https://git.fromaitochitta.com/open/config-audit) `v5.5.0`',
    'body text',
    '### [Voyage](https://git.fromaitochitta.com/open/voyage) `v5.1.1`',
  ].join('\n');
  const out = reconcileReadmeLabel(readme, 'config-audit', 'v5.7.0');
  assert.ok(out.includes('/open/config-audit) `v5.7.0`'));
  assert.ok(out.includes('/open/voyage) `v5.1.1`')); // untouched
});

test('reconcileReadmeLabel leaves a trailing lang/flag badge intact', () => {
  const readme = '### [MS AI Architect](https://x/open/ms-ai-architect) `v1.15.0` `🇳🇴 Norwegian`';
  const out = reconcileReadmeLabel(readme, 'ms-ai-architect', 'v1.16.0');
  assert.equal(out, '### [MS AI Architect](https://x/open/ms-ai-architect) `v1.16.0` `🇳🇴 Norwegian`');
});

test('reconcileReadmeLabel returns null when the label already matches (no-op)', () => {
  const readme = '### [Config-Audit](https://x/open/config-audit) `v5.7.0`';
  assert.equal(reconcileReadmeLabel(readme, 'config-audit', 'v5.7.0'), null);
});

test('reconcileReadmeLabel returns null when the plugin has no heading', () => {
  const readme = '### [Other](https://x/open/other) `v1.0.0`';
  assert.equal(reconcileReadmeLabel(readme, 'ghost', 'v2.0.0'), null);
});

// --- pre-flight gate: check-versions must run BEFORE the writes, not after -----
//
// The old order wrote marketplace.json + the README label first and only THEN ran the
// gate (which throws on exit 1) — leaving a half-applied release in the working tree
// that a parallel session could carry to the public remote. These tests pin the
// ORDER, so they must assert on writes-not-taken, not just on a verdict string.

const gateResult = (statuses) => {
  const results = Object.entries(statuses).map(([name, status]) => ({ name, status, findings: [] }));
  return {
    results,
    hasError: results.some(r => r.status === 'ERROR'),
    hasWarn: results.some(r => r.status === 'WARN'),
    failed: results.some(r => r.status === 'ERROR'),
  };
};

const fakeIo = (gate, readmeText = '### [Alpha](https://x/open/alpha) `v1.0.0`') => {
  const writes = [];
  return {
    writes,
    runGate: () => gate,
    readFileSync: () => readmeText,
    writeFileSync: (p) => { writes.push(p); },
  };
};

const paths = { catalogDir: '/cat', mktPath: '/cat/.claude-plugin/marketplace.json', readmePath: '/cat/README.md' };

test('preflightErrors names every ERROR plugin, catalog-wide (not just the target)', () => {
  assert.deepEqual(preflightErrors(gateResult({ alpha: 'WARN', beta: 'ERROR', gamma: 'ERROR' })), ['beta', 'gamma']);
  assert.deepEqual(preflightErrors(gateResult({ alpha: 'OK', beta: 'WARN', gamma: 'SKIP' })), []);
});

test('pre-flight ERROR aborts BEFORE any file is written (ordering, not just verdict)', () => {
  const plan = planRelease({ marketplace: marketplace(), name: 'alpha', observed: observed() });
  const io = fakeIo(gateResult({ alpha: 'WARN', beta: 'ERROR' })); // ERROR on a DIFFERENT plugin
  const r = applyRelease({ plan, ...paths }, io);
  assert.equal(r.verdict, 'BLOCKED');
  assert.deepEqual(r.preflightErrors, ['beta']);
  assert.deepEqual(io.writes, [], 'no file may be written when the gate is red');
});

test('pre-bump WARN is the NORMAL state and must NOT block the release', () => {
  const plan = planRelease({ marketplace: marketplace(), name: 'alpha', observed: observed() });
  // Real classifier, pre-bump: catalog ref still v1.0.0 while plugin.json is 1.1.0.
  // This is exactly what a release looks like before it is applied — it MUST be WARN,
  // or gating on `failed`/`--strict` would brick every release.
  const pre = classifyPlugin({
    name: 'alpha', catalogRef: plan.currentRef,
    pluginVersion: '1.1.0', readmeBadge: '1.1.0', tags: ['v1.0.0', 'v1.1.0'],
  });
  assert.equal(pre.status, 'WARN');

  const io = fakeIo({ results: [pre], hasError: false, hasWarn: true, failed: false });
  const r = applyRelease({ plan, ...paths }, io);
  assert.equal(r.verdict, 'WROTE');
  assert.deepEqual(io.writes, [paths.mktPath, paths.readmePath]);
});

test('green pre-flight writes the ref and reports an already-correct README label as unchanged', () => {
  const plan = planRelease({ marketplace: marketplace(), name: 'alpha', observed: observed() });
  const io = fakeIo(gateResult({ alpha: 'OK' }), '### [Alpha](https://x/open/alpha) `v1.1.0`');
  const r = applyRelease({ plan, ...paths }, io);
  assert.equal(r.verdict, 'WROTE');
  assert.equal(r.readme, 'unchanged');
  assert.deepEqual(io.writes, [paths.mktPath]);
});

test('a missing catalog README does not abort the ref bump', () => {
  const plan = planRelease({ marketplace: marketplace(), name: 'alpha', observed: observed() });
  const io = fakeIo(gateResult({ alpha: 'OK' }));
  io.readFileSync = () => { throw new Error('ENOENT'); };
  const r = applyRelease({ plan, ...paths }, io);
  assert.equal(r.verdict, 'WROTE');
  assert.equal(r.readme, 'missing');
  assert.deepEqual(io.writes, [paths.mktPath]);
});

// --- shouldCreateTag: --create-tag is a WRITE, so it must obey --write --------
//
// `--create-tag` mints AND PUSHES a tag to a public remote — the one genuinely
// irreversible side effect in this helper. It used to fire on the documented
// dry-run entry point (`<name> --create-tag`, no --write), which contradicts
// "dry-run by default": the tag was already public before the plan was printed.
// The decision (2026-08-10) was to gate it on --write and leave the catalog-wide
// pre-flight where it is — that gate can only prevent an EARLY tag, never a WRONG
// one, since the preconditions below already make the tag correct by construction.

const tagArgs = (o = {}) => ({ createTag: true, write: true, ...o });

test('shouldCreateTag: --create-tag --write on a consistent plugin with no tag → create', () => {
  assert.equal(shouldCreateTag(tagArgs(), observed({ tags: ['v1.0.0'] }), '1.1.0'), 'create');
});

test('shouldCreateTag: --create-tag WITHOUT --write never pushes (dry-run stays dry)', () => {
  assert.equal(shouldCreateTag(tagArgs({ write: false }), observed({ tags: ['v1.0.0'] }), '1.1.0'), 'dry-run');
});

test('shouldCreateTag: no --create-tag → skip, even with --write', () => {
  assert.equal(shouldCreateTag(tagArgs({ createTag: false }), observed({ tags: ['v1.0.0'] }), '1.1.0'), 'skip');
});

test('shouldCreateTag: tag already exists → skip (retry after a red gate is idempotent)', () => {
  assert.equal(shouldCreateTag(tagArgs(), observed({ tags: ['v1.0.0', 'v1.1.0'] }), '1.1.0'), 'skip');
});

test('shouldCreateTag: skips when the plugin is not internally consistent', () => {
  // plugin.json behind the target — planRelease would BLOCK anyway; never mint for it.
  assert.equal(shouldCreateTag(tagArgs(), observed({ pluginVersion: '1.0.0', readmeBadge: '1.0.0', tags: ['v1.0.0'] }), '1.1.0'), 'skip');
  // README badge disagrees with plugin.json
  assert.equal(shouldCreateTag(tagArgs(), observed({ readmeBadge: '1.0.0', tags: ['v1.0.0'] }), '1.1.0'), 'skip');
  // no target version resolved
  assert.equal(shouldCreateTag(tagArgs(), observed({ tags: ['v1.0.0'] }), null), 'skip');
  // plugin repo absent (gitTags returned null) — nothing to tag
  assert.equal(shouldCreateTag(tagArgs(), observed({ tags: null }), '1.1.0'), 'skip');
});

test('shouldCreateTag: a null README badge is tolerated (badge-less plugin)', () => {
  assert.equal(shouldCreateTag(tagArgs(), observed({ readmeBadge: null, tags: ['v1.0.0'] }), '1.1.0'), 'create');
});