import { describe, expect, it } from 'vitest'
import {
  formatSubmodulePushFailureDetail,
  isNoUpstreamError,
  normalizeGitErrorMessage
} from './git-remote-error'

describe('normalizeGitErrorMessage', () => {
  it('keeps the submodule name when a recursive push is rejected', () => {
    const error = new Error(
      "Command failed: git push\nPushing submodule 'find-cmux-followers'\n" +
        'To https://github.com/stablyai/orca-internal\n' +
        ' ! [rejected]        master -> master (fetch first)\n' +
        "Unable to push submodule 'find-cmux-followers'\n" +
        'fatal: failed to push all needed submodules'
    )

    expect(normalizeGitErrorMessage(error, 'push')).toBe(
      "Submodule 'find-cmux-followers' has remote changes. Pull inside the submodule, then try again."
    )
  })
})

describe('formatSubmodulePushFailureDetail', () => {
  it('keeps normalized guidance when transport layers prefix the error', () => {
    expect(
      formatSubmodulePushFailureDetail(
        "Error invoking remote method 'git:push': Error: Submodule 'vendor/tools' has remote changes. Pull inside the submodule, then try again."
      )
    ).toBe(
      "Submodule 'vendor/tools' has remote changes. Pull inside the submodule, then try again."
    )
  })

  it('falls back to submodule-specific guidance when git omits the nested reason', () => {
    expect(
      formatSubmodulePushFailureDetail(
        "Unable to push submodule 'vendor/tools'\nfatal: failed to push all needed submodules"
      )
    ).toBe(
      "Submodule 'vendor/tools' could not be pushed. Resolve the submodule push error, then try again."
    )
  })
})

describe('isNoUpstreamError', () => {
  it('treats a missing HEAD@{u} tracking ref as no upstream', () => {
    const error = new Error(
      "fatal: ambiguous argument 'HEAD@{u}': unknown revision or path not in the working tree.\n" +
        "Use '--' to separate paths from revisions, like this:\n" +
        "'git <command> [<revision>...] -- [<file>...]'"
    )

    expect(isNoUpstreamError(error)).toBe(true)
  })

  it('does not treat unrelated ambiguous refs as no upstream', () => {
    const error = new Error(
      "fatal: ambiguous argument 'feature': unknown revision or path not in the working tree."
    )

    expect(isNoUpstreamError(error)).toBe(false)
  })
})