import {z} from 'zod'

export type GetApiV0SitesSiteIdWorkflowsWorkflowIdArgs = {site_id: string, workflow_id: string};

export type GetApiV0SitesSiteIdWorkflowsWorkflowIdOptions = {baseUrl?: string | undefined, bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const finalTaskMessage = z.object({level: z.string(), message: z.string()});

export const finalTask = z.object({messages: z.record(z.string(), finalTaskMessage).optional(), reason: z.string().optional()});

export const workflowOperation = z.object({description: z.string().optional(), id: z.string(), log_output: z.string().optional(), result: z.enum(["succeeded", "failed", "running"]).optional(), run_time: z.number().optional(), type: z.string().optional()});

export const workflowStatusResponse = z.object({active_description: z.string().optional(), final_task: finalTask.optional(), operations: z.array(workflowOperation).optional(), result: z.enum(["succeeded", "failed", "running"]).optional(), step: z.number().int().optional()});

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 Workflow Status
 * 
 * GET /v0/sites/{site_id}/workflows/{workflow_id}
 */
export const getApiV0SitesSiteIdWorkflowsWorkflowId = async (args: GetApiV0SitesSiteIdWorkflowsWorkflowIdArgs, options?: GetApiV0SitesSiteIdWorkflowsWorkflowIdOptions) => {
const {baseUrl = "https://api.pantheon.io", fetch: fetchFn = fetch, bearer} = options ?? {}

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

if (bearer !== undefined) headers.set("Authorization", bearer)

const url = `${baseUrl.replace(/\/+$/, '')}/v0/sites/${encodeURIComponent(String(args.site_id))}/workflows/${encodeURIComponent(String(args.workflow_id))}${query.size > 0 ? `?${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(workflowStatusResponse, await res.json())
};