import {z} from 'zod'

export type InvoicePreviewLineItem = {product_id: unknown, quantity?: (number | null) | undefined};

export type GenerateInvoicePreview = {line_items: Array<InvoicePreviewLineItem>, promotion_code?: (string | null) | undefined};

export type CreateApiApiV3TeamsTeamIdInvoicePreviewArgs = {team_id: string, body: GenerateInvoicePreview};

export type CreateApiApiV3TeamsTeamIdInvoicePreviewOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const invoiceLineItem = z.object({description: z.string(), amount: z.number().int(), unit_amount: z.string(), quantity: z.number().int()});

export const discountDuration = z.enum(["forever", "once", "repeating"]);

export const discount = z.object({name: z.string().nullable(), source: z.string(), amount: z.number().int(), amount_off: z.number().int().nullable(), currency: z.string().nullable(), percent_off: z.string().nullable(), duration: discountDuration, duration_in_months: z.number().int().nullable()});

export const tax = z.object({description: z.string(), percentage: z.string(), effective_percentage: z.string().nullable(), amount: z.number().int(), taxable_amount: z.number().int()});

export const invoice = z.object({currency: z.string(), period_start: z.string(), period_end: z.string(), line_items: z.array(invoiceLineItem), subtotal: z.number().int(), discounts: z.array(discount), total_excluding_tax: z.number().int(), taxes: z.array(tax), total: z.number().int()});

export const invoiceNoPagination = z.object({data: invoice});

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
};

/**
 * Generate invoice preview for chosen line items
 * 
 * POST /api/v3/teams/{team_id}/invoice-preview
 */
export const createApiApiV3TeamsTeamIdInvoicePreview = async (args: CreateApiApiV3TeamsTeamIdInvoicePreviewArgs, options?: CreateApiApiV3TeamsTeamIdInvoicePreviewOptions) => {
const {baseUrl = "https://codemagic.io", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (apiKey !== undefined) headers.set("x-auth-token", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v3/teams/${encodeURIComponent(String(args.team_id))}/invoice-preview${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(invoiceNoPagination, await res.json())
};