import {z} from 'zod'

export type GetApiV1AskFeatherSessionsSessionIdArgs = {session_id: string};

export type GetApiV1AskFeatherSessionsSessionIdOptions = {baseUrl: string, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const sessionUsage = z.object({input_tokens: z.number().int(), output_tokens: z.number().int(), cost_usd: z.number()});

export const srcAskFeatherSchemasMessageResponse = z.object({id: z.string(), seq: z.number().int(), role: z.string(), content: z.union([z.array(z.unknown()), z.record(z.string(), z.unknown()), z.string()]), created_at: z.string(), turn_id: z.string()});

export const pendingApproval = z.object({tool_call_id: z.string(), name: z.string(), input: z.record(z.string(), z.unknown())});

export const budgetStatus = z.object({used_usd: z.number(), limit_usd: z.number(), pct: z.number().int(), near_limit: z.boolean(), reset_at: z.number().int()});

export const activeTurn = z.object({turn_id: z.string(), status: z.string()});

export const srcAskFeatherSchemasSessionDetailResponse = z.object({id: z.string(), title: z.string().nullable(), created_at: z.string(), updated_at: z.string(), usage: sessionUsage, messages: z.array(srcAskFeatherSchemasMessageResponse), messages_next_cursor: z.string().nullable().optional(), has_more_messages: z.boolean().optional(), pending_approvals: z.array(pendingApproval).optional(), budget: budgetStatus.nullable().optional(), active_turn: activeTurn.nullable().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 Session Detail
 * 
 * GET /v1/ask-feather/sessions/{session_id}
 */
export const getApiV1AskFeatherSessionsSessionId = async (args: GetApiV1AskFeatherSessionsSessionIdArgs, options: GetApiV1AskFeatherSessionsSessionIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (APIKeyHeader !== undefined) headers.set("x-api-key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/ask-feather/sessions/${encodeURIComponent(String(args.session_id))}${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(srcAskFeatherSchemasSessionDetailResponse, await res.json())
};