import {z} from 'zod'

export type PromptVariablesConfiguration = {mode?: ('inline' | 'call_context') | undefined, call_context_note?: (string | null) | undefined, include_weekday?: boolean | undefined};

export type PromptPreviewRequest = {prompt_variables?: PromptVariablesConfiguration | undefined, sample_values?: ({[key: string]: unknown} | null) | undefined, sample_run_id?: (number | null) | undefined, workflow_definition?: ({[key: string]: unknown} | null) | undefined};

export type CreateApiApiV1WorkflowWorkflowIdPromptPreviewArgs = {workflow_id: number, authorization?: (string | null) | undefined, 'X-API-Key'?: (string | null) | undefined, body: PromptPreviewRequest};

export type CreateApiApiV1WorkflowWorkflowIdPromptPreviewOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const nodePromptPreview = z.object({node_id: z.string(), node_name: z.string(), system_prompt: z.string(), tools: z.array(z.record(z.string(), z.unknown())), variables: z.array(z.string()), unresolved_variables: z.array(z.string()), static_tokens_estimate: z.number().int(), per_call_tokens_estimate: z.number().int(), cache_status: z.string().nullable().optional()});

export const promptPreviewResponse = z.object({nodes: z.array(nodePromptPreview), call_context: z.string().nullable(), provider: z.string().nullable(), model: z.string().nullable(), explicit_cache_available: z.boolean(), minimum_tokens: z.number().int().nullable().optional(), notices: z.array(z.string()), default_note: z.string()});

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
};

/**
 * Preview Workflow Prompts
 * 
 * POST /api/v1/workflow/{workflow_id}/prompt-preview
 */
export const createApiApiV1WorkflowWorkflowIdPromptPreview = async (args: CreateApiApiV1WorkflowWorkflowIdPromptPreviewArgs, options?: CreateApiApiV1WorkflowWorkflowIdPromptPreviewOptions) => {
const {baseUrl = "https://app.dograh.com", fetch: fetchFn = fetch} = options ?? {}

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

if (args.authorization != null) headers.set("authorization", String(args.authorization))
if (args['X-API-Key'] != null) headers.set("X-API-Key", String(args['X-API-Key']))

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/workflow/${encodeURIComponent(String(args.workflow_id))}/prompt-preview${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

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

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