import { unwrapApiResponse } from '@/utils/api-response'
import { request } from '@/utils/request'

import type {
  ApiResponse,
  SignatureUploadInput,
  SignatureUploadResponse,
  SigningProof,
  SigningFormState,
  PatientAnswer,
  SigningContextResponse,
  TokenConsumeRequest,
  TokenConsumeResponse,
} from './types'

export function consumeSigningToken(
  payload: TokenConsumeRequest,
  idempotencyKey: string,
): Promise<TokenConsumeResponse> {
  return request
    .post<ApiResponse<TokenConsumeResponse>>('/v1/sign-deliveries/token/consume', payload, {
      headers: {
        'Idempotency-Key': idempotencyKey,
      },
    })
    .then(unwrapApiResponse)
}

/**
 * 读取本次签署的完整上下文：患者信息 / 签署人 / 文书正文 / 医生已填结果。
 *
 * Context 使用已消费凭证，不再把原始一次性 Token 放进请求 URL、日志或后续请求。
 */
export function fetchSigningContext(proof: SigningProof): Promise<SigningContextResponse> {
  return request
    .post<ApiResponse<SigningContextResponse>>('/v1/sign-deliveries/token/context', proof)
    .then(unwrapApiResponse)
}

export function uploadSigningSignature(
  payload: SignatureUploadInput,
): Promise<SignatureUploadResponse> {
  const formData = new FormData()
  formData.append('file', payload.file, 'signature.png')
  formData.append('deliveryId', payload.deliveryId)
  formData.append('uploadToken', payload.uploadToken)
  formData.append(
    'metadata',
    new Blob([JSON.stringify(payload.metadata)], { type: 'application/json' }),
  )
  formData.append(
    'signer',
    new Blob([JSON.stringify(payload.signer)], { type: 'application/json' }),
  )

  return request
    .post<ApiResponse<SignatureUploadResponse>>(
      `/v1/sign-deliveries/${encodeURIComponent(payload.taskId)}/signature`,
      formData,
      {
        headers: {
          'Idempotency-Key': payload.idempotencyKey,
        },
      },
    )
    .then(unwrapApiResponse)
}

export function saveSigningForm(
  proof: SigningProof,
  expectedRevision: number,
  answers: Record<string, PatientAnswer>,
): Promise<SigningFormState> {
  return request
    .post<ApiResponse<SigningFormState>>('/v1/sign-deliveries/token/form', {
      ...proof,
      expectedRevision,
      answers,
    })
    .then(unwrapApiResponse)
}