import {z} from 'zod'

export type PositionEventType = 'add' | 'remove' | 'claim_fee' | 'claim_reward';

export type PositionEventOrderDirection = 'asc' | 'desc';

export type GetApiPositionsAddressHistoricalArgs = {address: string, event_type?: PositionEventType | undefined, order_direction?: PositionEventOrderDirection | undefined};

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

export const positionEvent = z.object({amountX: z.string(), amountXUsd: z.string(), amountY: z.string(), amountYUsd: z.string(), blockTime: z.number().int().gte(0), createdAt: z.string(), eventType: z.string(), ixIndex: z.number().int().gte(0), poolAddress: z.string(), positionAddress: z.string(), signature: z.string(), slot: z.number().int().gte(0), tokenX: z.string(), tokenY: z.string(), totalUsd: z.string(), userAddress: z.string()});

export const getPositionHistoricalEventsResponse = z.object({events: z.array(positionEvent)});

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 the historical events for a position
 * 
 * GET /positions/{address}/historical
 */
export const getApiPositionsAddressHistorical = async (args: GetApiPositionsAddressHistoricalArgs, options?: GetApiPositionsAddressHistoricalOptions) => {
const {baseUrl = "https://damm-api.meteora.ag", fetch: fetchFn = fetch} = options ?? {}

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

if (args.event_type != null) query.append("event_type", String(args.event_type))
if (args.order_direction != null) query.append("order_direction", String(args.order_direction))

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