import {z} from 'zod'

export type GetApiV0IndicesArgs = {offset?: number | undefined, limit?: number | undefined, satellite_id?: string | undefined, type?: string | undefined, expression_type?: string | undefined, index_id?: string | undefined};

export type GetApiV0IndicesOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const atlasExpressionType = z.enum(["composite", "index", "grayscale"]);

export const atlasIndexType = z.enum(["custom", "preset"]);

export const atlasIndexEntity = z.object({bands: z.array(z.string()).optional(), colormap: z.string().optional(), created_at: z.string().optional(), description: z.string().optional(), expression: z.string().optional(), expression_type: atlasExpressionType.optional(), id: z.string().optional(), name: z.string().optional(), rescale: z.array(z.number().int()).optional(), satellite_id: z.string().optional(), type: atlasIndexType.optional(), updated_at: z.string().optional()});

export const commonPagination = z.object({limit: z.number().int().optional(), offset: z.number().int().optional(), total: z.number().int().optional()});

export const atlasListIndicesResponse = z.object({indices: z.array(atlasIndexEntity).optional(), pagination: commonPagination.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
};

/**
 * List all available indices
 * 
 * GET /v0/indices
 */
export const getApiV0Indices = async (args: GetApiV0IndicesArgs, options?: GetApiV0IndicesOptions) => {
const {baseUrl = "https://api.pixxel.space", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (args.offset != null) query.append("offset", String(args.offset))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.satellite_id != null) query.append("satellite_id", String(args.satellite_id))
if (args.type != null) query.append("type", String(args.type))
if (args.expression_type != null) query.append("expression_type", String(args.expression_type))
if (args.index_id != null) query.append("index_id", String(args.index_id))
if (ApiKeyAuth !== undefined) headers.set("Authorization", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/v0/indices${query.size > 0 ? `?${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(atlasListIndicesResponse, await res.json())
};