import {z} from 'zod'

export type GetApiV2FungibleAssetsArgs = {chain_ids?: Array<string> | undefined, native_only?: boolean | undefined, include_no_metadata_assets?: boolean | undefined, include_cw20_assets?: boolean | undefined, include_evm_assets?: boolean | undefined, include_svm_assets?: boolean | undefined, only_testnets?: boolean | undefined};

export type GetApiV2FungibleAssetsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const asset = z.object({denom: z.string(), chain_id: z.string(), origin_denom: z.string(), origin_chain_id: z.string(), trace: z.string(), is_cw20: z.boolean(), is_evm: z.boolean(), is_svm: z.boolean(), symbol: z.string().nullable().optional(), name: z.string().nullable().optional(), logo_uri: z.string().nullable().optional(), decimals: z.number().nullable().optional(), token_contract: z.string().nullable().optional(), description: z.string().nullable().optional(), coingecko_id: z.string().nullable().optional(), recommended_symbol: z.string().nullable().optional()});

export const getApiV2FungibleAssetsResponse = z.object({chain_to_assets_map: z.record(z.string(), z.object({assets: z.array(asset).optional()})).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 supported assets. Optionally limit to assets on a given chain and/or native assets.
 * 
 * GET /v2/fungible/assets
 */
export const getApiV2FungibleAssets = async (args: GetApiV2FungibleAssetsArgs, options?: GetApiV2FungibleAssetsOptions) => {
const {baseUrl = "https://api.skip.build", fetch: fetchFn = fetch} = options ?? {}

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

for (const item of args.chain_ids ?? []) query.append("chain_ids", String(item))
if (args.native_only != null) query.append("native_only", String(args.native_only))
if (args.include_no_metadata_assets != null) query.append("include_no_metadata_assets", String(args.include_no_metadata_assets))
if (args.include_cw20_assets != null) query.append("include_cw20_assets", String(args.include_cw20_assets))
if (args.include_evm_assets != null) query.append("include_evm_assets", String(args.include_evm_assets))
if (args.include_svm_assets != null) query.append("include_svm_assets", String(args.include_svm_assets))
if (args.only_testnets != null) query.append("only_testnets", String(args.only_testnets))

const url = `${baseUrl.replace(/\/+$/, '')}/v2/fungible/assets${query.size > 0 ? `?${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(getApiV2FungibleAssetsResponse, await res.json())
};