import {z} from 'zod'

export type GetApiV3SequencesSequenceIdContactsContactIdPreviewArgs = {sequence_id: number, contact_id: number};

export type GetApiV3SequencesSequenceIdContactsContactIdPreviewOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiV3SequencesSequenceIdContactsContactIdPreviewResponse = z.object({sequenceId: z.number().int(), contactId: z.number().int(), contactFullName: z.string(), contactEmail: z.string().nullable().optional(), contactTitle: z.string().nullable().optional(), contactCompany: z.string().nullable().optional(), contactLinkedInUrl: z.string().nullable().optional(), steps: z.array(z.object({stepId: z.number().int(), displayName: z.string(), personalizationStatus: z.enum(["notPersonalized", "inProgress", "personalized", "failed", "awaitingApproval"]), needsPersonalization: z.boolean(), subject: z.string().nullable().optional(), body: z.string(), isModifiedByUser: z.boolean()}))});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Get sequence preview for a contact
 * 
 * GET /v3/sequences/{sequence_id}/contacts/{contact_id}/preview
 */
export const getApiV3SequencesSequenceIdContactsContactIdPreview = async (args: GetApiV3SequencesSequenceIdContactsContactIdPreviewArgs, options?: GetApiV3SequencesSequenceIdContactsContactIdPreviewOptions) => {
const {baseUrl = "https://api.reply.io", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v3/sequences/${encodeURIComponent(String(args.sequence_id))}/contacts/${encodeURIComponent(String(args.contact_id))}/preview${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(getApiV3SequencesSequenceIdContactsContactIdPreviewResponse, await res.json())
};