import {z} from 'zod'

export type TrainingShapeTrainerMode = 'TRAINER_MODE_UNSPECIFIED' | 'POLICY_TRAINER' | 'FORWARD_ONLY' | 'LORA_TRAINER';

export type GatewayTrainerShardingScheme = {tensorParallelism?: number | undefined, pipelineParallelism?: number | undefined, contextParallelism?: number | undefined, expertParallelism?: number | undefined, sequenceParallelism?: boolean | undefined};

export type GatewayAcceleratorType = 'ACCELERATOR_TYPE_UNSPECIFIED' | 'NVIDIA_A100_80GB' | 'NVIDIA_H100_80GB' | 'AMD_MI300X_192GB' | 'NVIDIA_A10G_24GB' | 'NVIDIA_A100_40GB' | 'NVIDIA_L4_24GB' | 'NVIDIA_H200_141GB' | 'NVIDIA_B200_180GB' | 'AMD_MI325X_256GB' | 'AMD_MI350X_288GB' | 'NVIDIA_B300_288GB' | 'NVIDIA_GB200' | 'NVIDIA_GB300';

export type GatewayWeightPrecision = 'WEIGHT_PRECISION_UNSPECIFIED' | 'BFLOAT16' | 'INT8' | 'NF4' | 'FP8' | 'FP4_FP8';

export type PatchApiV1AccountsAccountIdTrainingShapesTrainingShapeIdArgs = {account_id: string, training_shape_id: string, body: {displayName?: string | undefined, description?: string | undefined, createTime?: string | undefined, updateTime?: string | undefined, baseModel: string, deploymentShapeVersion?: string | undefined, trainerImageTag: string, trainerMode?: TrainingShapeTrainerMode | undefined, nodeCount?: number | undefined, trainerShardingScheme?: GatewayTrainerShardingScheme | undefined, modelType?: string | undefined, parameterCount?: unknown | undefined, acceleratorType?: GatewayAcceleratorType | undefined, acceleratorCount?: number | undefined, baseModelWeightPrecision?: GatewayWeightPrecision | undefined, maxSupportedContextLength?: number | undefined, minTotalAcceleratorCount?: number | undefined}};

export type PatchApiV1AccountsAccountIdTrainingShapesTrainingShapeIdOptions = {baseUrl: string, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const trainingShapeTrainerMode = z.enum(["TRAINER_MODE_UNSPECIFIED", "POLICY_TRAINER", "FORWARD_ONLY", "LORA_TRAINER"]);

export const gatewayTrainerShardingScheme = z.object({tensorParallelism: z.number().int().optional(), pipelineParallelism: z.number().int().optional(), contextParallelism: z.number().int().optional(), expertParallelism: z.number().int().optional(), sequenceParallelism: z.boolean().optional()});

export const gatewayAcceleratorType = z.enum(["ACCELERATOR_TYPE_UNSPECIFIED", "NVIDIA_A100_80GB", "NVIDIA_H100_80GB", "AMD_MI300X_192GB", "NVIDIA_A10G_24GB", "NVIDIA_A100_40GB", "NVIDIA_L4_24GB", "NVIDIA_H200_141GB", "NVIDIA_B200_180GB", "AMD_MI325X_256GB", "AMD_MI350X_288GB", "NVIDIA_B300_288GB", "NVIDIA_GB200", "NVIDIA_GB300"]);

export const gatewayWeightPrecision = z.enum(["WEIGHT_PRECISION_UNSPECIFIED", "BFLOAT16", "INT8", "NF4", "FP8", "FP4_FP8"]);

export const gatewayTrainingShape = z.object({name: z.string().optional(), displayName: z.string().optional(), description: z.string().optional(), createTime: z.string().optional(), updateTime: z.string().optional(), baseModel: z.string(), deploymentShapeVersion: z.string().optional(), trainerImageTag: z.string(), trainerMode: trainingShapeTrainerMode.optional(), nodeCount: z.number().int().optional(), trainerShardingScheme: gatewayTrainerShardingScheme.optional(), modelType: z.string().optional(), parameterCount: z.string().optional(), acceleratorType: gatewayAcceleratorType.optional(), acceleratorCount: z.number().int().optional(), baseModelWeightPrecision: gatewayWeightPrecision.optional(), maxSupportedContextLength: z.number().int().optional(), minTotalAcceleratorCount: z.number().int().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
};

/**
 * Update Training Shape
 * 
 * PATCH /v1/accounts/{account_id}/trainingShapes/{training_shape_id}
 */
export const patchApiV1AccountsAccountIdTrainingShapesTrainingShapeId = async (args: PatchApiV1AccountsAccountIdTrainingShapesTrainingShapeIdArgs, options: PatchApiV1AccountsAccountIdTrainingShapesTrainingShapeIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/accounts/${encodeURIComponent(String(args.account_id))}/trainingShapes/${encodeURIComponent(String(args.training_shape_id))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PATCH", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(gatewayTrainingShape, await res.json())
};