import { describe, expect, test } from 'bun:test'
import { readFileSync } from 'node:fs'

describe('feature quality contract', () => {
  test('keeps the agent-facing implementation contract explicit', () => {
    const agents = readFileSync('AGENTS.md', 'utf8')

    expect(agents).toContain('## Feature Quality Contract')
    expect(agents).toContain('## Persistent Storage Compatibility')
    expect(agents).toContain('Any change to local JSON, `localStorage`, or app config persistence formats must ship with a forward migration')
    expect(agents).toContain('`~/.claude/settings.json` is user-owned shared state')
    expect(agents).toContain('persistence upgrade gate')
    expect(agents).toContain('Production code changes under `desktop/src`, `src/server`, `src/tools`, `src/utils`, or `adapters` must include a same-area test file')
    expect(agents).toContain('Coverage is part of the feature, not an afterthought.')
    expect(agents).toContain('changed executable production line must meet the changed-line coverage gate')
    expect(agents).toContain('E2E is required when the feature crosses process boundaries')
    expect(agents).toContain('AI agents must include this evidence')
    expect(agents).toContain('Unified local entrypoint: `bun run verify`')
    expect(agents).toContain('If `bun run verify` fails, do not stop at reporting the failure')
  })

  test('keeps PR authors accountable for tests, coverage, E2E, and risk', () => {
    const template = readFileSync('.github/pull_request_template.md', 'utf8')

    expect(template).toContain('## Feature Quality Contract')
    expect(template).toContain('Changed surface:')
    expect(template).toContain('Tests added or updated:')
    expect(template).toContain('Coverage evidence:')
    expect(template).toContain('changed-line coverage')
    expect(template).toContain('E2E / live-model evidence:')
    expect(template).toContain('Known risk / rollback:')
    expect(template).toContain('I added or updated same-area tests')
  })

  test('keeps the one-command verification entrypoint documented', () => {
    const packageJson = JSON.parse(readFileSync('package.json', 'utf8')) as {
      scripts?: Record<string, string>
    }
    const prePushHook = readFileSync('scripts/git-hooks/pre-push', 'utf8')
    const contributing = readFileSync('docs/guide/contributing.md', 'utf8')
    const englishContributing = readFileSync('docs/en/guide/contributing.md', 'utf8')
    const rootContributing = readFileSync('CONTRIBUTING.md', 'utf8')

    expect(packageJson.scripts?.verify).toBe('bun run quality:pr')
    expect(packageJson.scripts?.['quality:verify']).toBe('bun run quality:pr')
    expect(packageJson.scripts?.['quality:push']).toBe('bun run quality:gate --mode pr --skip coverage')
    expect(packageJson.scripts?.['check:persistence-upgrade']).toBe('bun run scripts/quality-gate/persistence-upgrade.ts')
    expect(packageJson.scripts?.['check:native']).toContain('electron:package:dir')
    expect(packageJson.scripts?.['check:native']).toContain('test:package-smoke:current')
    expect(packageJson.scripts?.['test:package-smoke:current']).toBe('bun run scripts/quality-gate/package-smoke/current.ts')
    expect(prePushHook).toContain('non-blocking')
    expect(prePushHook).not.toContain('\nbun run quality:push\n')
    expect(prePushHook).not.toContain('quality:gate')
    expect(prePushHook).not.toContain('quality:smoke')
    expect(contributing).toContain('bun run verify')
    expect(contributing).toContain('bun run quality:push')
    expect(contributing).toContain('push 不再自动运行本地质量门禁')
    expect(contributing).toContain('AI Coding Agent 修复循环')
    expect(englishContributing).toContain('bun run verify')
    expect(englishContributing).toContain('bun run quality:push')
    expect(englishContributing).toContain('push no longer runs a local quality gate')
    expect(englishContributing).toContain('AI Coding Agent Fix Loop')
    expect(rootContributing).toContain('bun run verify')
    expect(rootContributing).toContain('bun run quality:push')
    expect(rootContributing).toContain('不再自动运行本地质量门禁')
  })

  test('keeps desktop native CI aligned with Electron packaging', () => {
    const prQuality = readFileSync('.github/workflows/pr-quality.yml', 'utf8')
    const buildSidecars = readFileSync('desktop/scripts/build-sidecars.ts', 'utf8')

    expect(prQuality).toContain('run: bun run check:native')
    expect(prQuality).not.toContain('dtolnay/rust-toolchain')
    expect(prQuality).not.toContain('swatinem/rust-cache')
    expect(prQuality).not.toContain('libwebkit2gtk')
    expect(prQuality).not.toContain('libayatana-appindicator')
    expect(buildSidecars).not.toContain("Bun.spawn(['rustc'")
    expect(buildSidecars).toContain("process.platform")
    expect(buildSidecars).toContain("process.arch")
  })

  test('keeps general AI coding tools pointed at the same quality bar', () => {
    const instructions = readFileSync('.github/copilot-instructions.md', 'utf8')

    expect(instructions).toContain('Follow the repository contract in `AGENTS.md`')
    expect(instructions).toContain('Add same-area tests with the production change')
    expect(instructions).toContain('Preserve or improve the coverage ratchet')
    expect(instructions).toContain('changed-line coverage threshold')
    expect(instructions).toContain('E2E or agent-browser smoke')
    expect(instructions).toContain('include changed files, tests added, coverage report path')
  })
})