import {z} from 'zod'

export type GetApiIndexesArgs = {'X-Pinecone-Api-Version': string};

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

export const dbControlDeletionProtection = z.string();

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

export const dbControlModelIndexEmbed = z.object({model: z.string(), metric: z.string().optional(), dimension: z.number().int().gte(1).lte(20000).optional(), vector_type: z.string().optional(), field_map: z.object({}).optional(), read_parameters: z.object({}).optional(), write_parameters: z.object({}).optional()});

export const dbControlReadCapacityStatus = z.object({state: z.string(), current_replicas: z.number().int().optional(), current_shards: z.number().int().optional(), error_message: z.string().optional()});

export const dbControlReadCapacityOnDemandSpecResponse = z.object({mode: z.string(), status: dbControlReadCapacityStatus});

export const dbControlScalingConfigManual = z.object({replicas: z.number().int().gte(0).optional(), shards: z.number().int().gte(1).optional()});

export const dbControlReadCapacityDedicatedConfig = z.object({node_type: z.string().optional(), scaling: z.string().optional(), manual: dbControlScalingConfigManual.optional()});

export const dbControlReadCapacityDedicatedSpecResponse = z.object({mode: z.string(), dedicated: dbControlReadCapacityDedicatedConfig, status: dbControlReadCapacityStatus});

export const dbControlReadCapacityResponse = z.discriminatedUnion("mode", [dbControlReadCapacityOnDemandSpecResponse, dbControlReadCapacityDedicatedSpecResponse]);

export const dbControlMetadataSchema = z.object({fields: z.record(z.string(), z.object({filterable: z.boolean().optional()}))});

export const dbControlServerlessSpecResponse = z.object({cloud: z.string(), region: z.string(), read_capacity: dbControlReadCapacityResponse, source_collection: z.string().optional(), schema: dbControlMetadataSchema.optional()});

export const dbControlPodSpec = z.object({environment: z.string(), replicas: z.number().int().gte(1).optional(), shards: z.number().int().gte(1).optional(), pod_type: z.string(), pods: z.number().int().gte(1).optional(), metadata_config: z.object({indexed: z.array(z.string()).optional()}).optional(), source_collection: z.string().optional()});

export const dbControlByocSpecResponse = z.object({environment: z.string(), read_capacity: dbControlReadCapacityResponse, schema: dbControlMetadataSchema.optional()});

export const dbControlIndexModel = z.object({name: z.string().min(1).max(45), dimension: z.number().int().gte(1).lte(20000).optional(), metric: z.string(), host: z.string(), private_host: z.string().optional(), deletion_protection: dbControlDeletionProtection.optional(), tags: dbControlIndexTags.optional(), embed: dbControlModelIndexEmbed.optional(), spec: z.union([z.object({serverless: dbControlServerlessSpecResponse}), z.object({pod: dbControlPodSpec}), z.object({byoc: dbControlByocSpecResponse})]), status: z.object({ready: z.boolean(), state: z.string()}), vector_type: z.string()});

export const dbControlIndexList = z.object({indexes: z.array(dbControlIndexModel).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 indexes
 * 
 * GET /indexes
 */
export const getApiIndexes = async (args: GetApiIndexesArgs, options?: GetApiIndexesOptions) => {
const {baseUrl = "https://api.pinecone.io", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (args['X-Pinecone-Api-Version'] != null) headers.set("X-Pinecone-Api-Version", String(args['X-Pinecone-Api-Version']))
if (ApiKeyAuth !== undefined) headers.set("Api-Key", ApiKeyAuth)

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