import { accessSync, constants, mkdtempSync, rmSync, writeFileSync } from 'node:fs'
import * as os from 'node:os'
import * as path from 'node:path'
import { afterEach, describe, expect, it } from 'vitest'
import {
  DEFAULT_COMMIT_PROFILE_NAME,
  resolveCommitProfileForRun,
  seedCommitProfilePath,
} from './commitProfile'

const tempDirs: string[] = []

afterEach(() => {
  while (tempDirs.length > 0) {
    const dir = tempDirs.pop()
    if (dir)
      rmSync(dir, { recursive: true, force: true })
  }
})

function tempDir(): string {
  const dir = mkdtempSync(path.join(os.tmpdir(), 'commit-profile-'))
  tempDirs.push(dir)
  return dir
}

describe('seedCommitProfilePath', () => {
  it('key 缺失时预填 deepseek-v4-pro 的 path', () => {
    const profiles = [
      { name: 'grok-4.5', path: '/p/grok-4.5.json' },
      { name: DEFAULT_COMMIT_PROFILE_NAME, path: '/p/deepseek-v4-pro.json' },
    ]
    expect(seedCommitProfilePath(undefined, profiles)).toBe('/p/deepseek-v4-pro.json')
  })

  it('key 缺失且无 deepseek 时返回空串', () => {
    expect(seedCommitProfilePath(undefined, [{ name: 'grok-4.5', path: '/p/g.json' }])).toBe('')
  })

  it('key 已存在为空串时尊重用户清空', () => {
    expect(seedCommitProfilePath('', [{ name: DEFAULT_COMMIT_PROFILE_NAME, path: '/p/d.json' }])).toBe('')
  })

  it('key 已存在为 path 时原样返回', () => {
    expect(seedCommitProfilePath('/custom/x.json', [{ name: DEFAULT_COMMIT_PROFILE_NAME, path: '/p/d.json' }])).toBe('/custom/x.json')
  })
})

describe('resolveCommitProfileForRun', () => {
  it('空串 → empty', () => {
    expect(resolveCommitProfileForRun('  ', p => p, () => true)).toEqual({ ok: false, reason: 'empty' })
  })

  it('文件不可读 → unreadable', () => {
    const dir = tempDir()
    const missing = path.join(dir, 'gone.json')
    const result = resolveCommitProfileForRun(
      missing,
      p => p,
      (p) => {
        try {
          accessSync(p, constants.R_OK)
          return true
        }
        catch {
          return false
        }
      },
    )
    expect(result).toEqual({ ok: false, reason: 'unreadable', profilePath: missing })
  })

  it('可读 path → ok', () => {
    const dir = tempDir()
    const file = path.join(dir, 'deepseek-v4-pro.json')
    writeFileSync(file, '{}')
    const result = resolveCommitProfileForRun(
      file,
      p => p,
      (p) => {
        try {
          accessSync(p, constants.R_OK)
          return true
        }
        catch {
          return false
        }
      },
    )
    expect(result).toEqual({ ok: true, profilePath: file })
  })

  it('经 resolvePath remap 后再检查可读', () => {
    const dir = tempDir()
    const local = path.join(dir, 'deepseek-v4-pro.json')
    writeFileSync(local, '{}')
    const foreign = '/Users/other/.claude/profiles/deepseek-v4-pro.json'
    const result = resolveCommitProfileForRun(
      foreign,
      () => local,
      (p) => {
        try {
          accessSync(p, constants.R_OK)
          return true
        }
        catch {
          return false
        }
      },
    )
    expect(result).toEqual({ ok: true, profilePath: local })
  })
})