import {z} from 'zod'

export type GetApiDcaOrderAddressArgs = {address: string, program?: string | undefined};

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

export const dcaToken = z.object({mint: z.string().optional(), symbol: z.string().optional(), name: z.string().optional(), decimals: z.number().int().optional(), image: z.string().nullable().optional(), uri: z.string().nullable().optional(), description: z.string().nullable().optional(), twitter: z.string().nullable().optional(), website: z.string().nullable().optional(), hasFileMetaData: z.boolean().optional(), priceUsd: z.number().nullable().optional()});

export const dcaOrderRaw = z.record(z.string(), z.string());

export const dcaOrderResponse = z.object({program: z.string().optional(), programId: z.string().optional(), address: z.string().optional(), owner: z.string().optional(), status: z.enum(["active", "paused", "completed", "pending"]).optional(), direction: z.enum(["buying", "selling", "mixed"]).optional(), pair: z.string().optional(), input: dcaToken.optional(), output: dcaToken.optional(), deposited: z.number().optional(), depositedUsd: z.number().nullable().optional(), used: z.number().optional(), usedUsd: z.number().nullable().optional(), remaining: z.number().optional(), remainingUsd: z.number().nullable().optional(), received: z.number().optional(), receivedUsd: z.number().nullable().optional(), perCycle: z.number().optional(), perCycleUsd: z.number().nullable().optional(), frequency: z.string().optional(), progressPercent: z.number().optional(), volume: z.number().optional(), volumeUsd: z.number().nullable().optional(), createdAt: z.string().optional(), nextCycleAt: z.string().nullable().optional(), raw: dcaOrderRaw.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 DCA order by address
 * 
 * GET /dca/order/{address}
 */
export const getApiDcaOrderAddress = async (args: GetApiDcaOrderAddressArgs, options?: GetApiDcaOrderAddressOptions) => {
const {baseUrl = "https://data.solanatracker.io", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.program != null) query.append("program", String(args.program))
if (apiKey !== undefined) headers.set("x-api-key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/dca/order/${encodeURIComponent(String(args.address))}${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(dcaOrderResponse, await res.json())
};