import {z} from 'zod'

export type ApiSupportedBlockchain = 'ton';

export type ApiSupportedYields = 'stonfi' | 'dedust' | 'dedust_v2' | 'stonfi_v2' | 'coffee' | 'tonraffles' | 'tonco' | 'tonco_v2' | 'colossus' | 'bidask' | 'tonstakers' | 'bemo' | 'bemo_v2' | 'hipo' | 'torch_finance' | 'stakee' | 'kton' | 'evaa' | 'coffin' | 'moon' | 'storm_trade' | 'farmix_lending' | 'dao_lama_vault';

export type ApiPoolSortOrder = 'tvl' | 'volume' | 'apr';

export type GetApiV1PoolsArgs = {blockchains?: Array<ApiSupportedBlockchain> | undefined, dexes?: Array<ApiSupportedYields> | undefined, trusted?: boolean | undefined, with_active_boosts?: boolean | undefined, recently_created?: boolean | undefined, with_liquidity_from?: string | undefined, search_text?: string | undefined, order?: ApiPoolSortOrder | undefined, descending_order?: boolean | undefined, in_groups?: boolean | undefined, size?: number | undefined, page?: number | undefined};

export type GetApiV1PoolsOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const apiPoolType = z.enum(["public", "private", "slumbering", "invalid"]);

export const apiAmmType = z.enum(["constant_product", "cubic_stable", "curve_fi_stable", "concentrated_v3", "tonstakers", "weighted_constant_product", "weighted_stable", "bidask", "moon_dlmm", "bidask_damm", "dedust_v2"]);

export const apiJson = z.record(z.string(), z.unknown());

export const apiTokenAddress = z.object({blockchain: z.string(), address: z.string()});

export const apiTokenVerification = z.enum(["whitelisted", "blacklisted", "community", "unknown"]);

export const apiTokenMetadata = z.object({name: z.string(), symbol: z.string(), decimals: z.number().int(), image_url: z.string().optional(), listed: z.boolean(), verification: apiTokenVerification});

export const apiToken = z.object({address: apiTokenAddress, metadata: apiTokenMetadata});

export const apiPoolReserves = z.array(z.number());

export const apiTokenRestrictions = z.object({min_swap_amount: z.number().optional(), max_swap_amount: z.number().optional()});

export const apiPoolFees = z.object({average_gas: z.number(), divider: z.number().int().optional(), input: z.number().int().optional(), output: z.number().int().optional(), first_token: z.number().int().optional(), second_token: z.number().int().optional()});

export const apiPool = z.object({dex: z.string(), address: z.string(), type: apiPoolType, amm_type: apiAmmType, amm_settings: apiJson.optional(), tokens: z.array(apiToken), reserves: apiPoolReserves, restrictions: z.array(apiTokenRestrictions).optional(), fees: apiPoolFees, unavailable_until: z.number().int().optional()});

export const apiPoolStatistics = z.object({address: z.string(), tvl_usd: z.number(), volume_usd: z.number(), fee_usd: z.number(), apr: z.number(), lp_apr: z.number(), boost_apr: z.number(), locked_asset_amount: z.string().optional()});

export const apiPoolInfo = z.object({pool: apiPool, info: apiPoolStatistics});

export const apiPoolsSearchResponse = z.object({total_count: z.number().int(), pools: z.array(apiPoolInfo)});

export const getApiV1PoolsResponse = z.array(apiPoolsSearchResponse);

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
};

/**
 * Returns list of pools which correspond to the given params
 * 
 * GET /v1/pools
 */
export const getApiV1Pools = async (args: GetApiV1PoolsArgs, options?: GetApiV1PoolsOptions) => {
const {baseUrl = "https://backend.swap.coffee", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

for (const item of args.blockchains ?? []) query.append("blockchains", String(item))
for (const item of args.dexes ?? []) query.append("dexes", String(item))
if (args.trusted != null) query.append("trusted", String(args.trusted))
if (args.with_active_boosts != null) query.append("with_active_boosts", String(args.with_active_boosts))
if (args.recently_created != null) query.append("recently_created", String(args.recently_created))
if (args.with_liquidity_from != null) query.append("with_liquidity_from", String(args.with_liquidity_from))
if (args.search_text != null) query.append("search_text", String(args.search_text))
if (args.order != null) query.append("order", String(args.order))
if (args.descending_order != null) query.append("descending_order", String(args.descending_order))
if (args.in_groups != null) query.append("in_groups", String(args.in_groups))
if (args.size != null) query.append("size", String(args.size))
if (args.page != null) query.append("page", String(args.page))
if (ApiKey !== undefined) headers.set("X-Api-Key", ApiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/pools${query.size > 0 ? `?${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(getApiV1PoolsResponse, await res.json())
};