import {z} from 'zod'

export type PricingVariant = 'default' | 'paid_tokens';

export type ItemActionRequest = {item_key: string};

export type CreateApiApiGamificationItemsPurchaseArgs = {pricing_variant?: PricingVariant | undefined, 'x-user-id'?: (string | null) | undefined, body: ItemActionRequest};

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

export const unlockType = z.enum(["free", "purchasable", "premium", "special"]);

export const itemResponse = z.object({id: z.string(), key: z.string(), name: z.string(), description: z.string().nullable().optional(), item_type: z.string(), unlock_type: unlockType, token_price: z.number().int().nullable().optional(), available_from: z.string().nullable().optional(), available_until: z.string().nullable().optional(), sort_order: z.number().int().optional(), created_at: z.string()});

export const itemActionResponse = z.object({success: z.boolean(), message: z.string(), item: itemResponse.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
};

/**
 * Purchase Item
 * 
 * POST /api/gamification/items/purchase
 */
export const createApiApiGamificationItemsPurchase = async (args: CreateApiApiGamificationItemsPurchaseArgs, options: CreateApiApiGamificationItemsPurchaseOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (args.pricing_variant != null) query.append("pricing_variant", String(args.pricing_variant))
if (args['x-user-id'] != null) headers.set("x-user-id", String(args['x-user-id']))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/gamification/items/purchase${query.size > 0 ? `?${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(itemActionResponse, await res.json())
};