import {z} from 'zod'

export type GetApiApiProjectIdTargetConstraintsArgs = {projectId: number};

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

export const resourceRange = z.object({minimum: z.number().optional(), maximum: z.number().optional()});

export const memorySpec = z.object({fastBytes: resourceRange.optional(), slowBytes: resourceRange.optional()});

export const targetMemory = z.object({ram: memorySpec.optional(), rom: memorySpec.optional()});

export const targetProcessor = z.object({part: z.string().optional(), format: z.string().optional(), architecture: z.string().optional(), specificArchitecture: z.string().optional(), accelerator: z.string().optional(), fpu: z.boolean().optional(), clockRateMhz: resourceRange.optional(), memory: targetMemory.optional()});

export const targetConstraintsDevice = z.object({processors: z.array(targetProcessor).optional(), board: z.string().optional(), name: z.string().optional(), latencyDevice: z.string().optional()});

export const applicationBudget = z.object({latencyPerInferenceMs: resourceRange.optional(), energyPerInferenceJoules: resourceRange.optional(), memoryOverhead: targetMemory.optional()});

export const targetConstraints = z.object({selectedTargetBasedOn: z.enum(["user-configured", "default", "default-accepted", "recent-project", "connected-device"]).optional(), targetDevices: z.array(targetConstraintsDevice), applicationBudgets: z.array(applicationBudget)});

export const getTargetConstraintsResponse = z.object({success: z.boolean(), error: z.string().optional(), targetConstraints: targetConstraints.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 target constraints
 * 
 * GET /api/{projectId}/target-constraints
 * 
 * Also accepts auth: JWTAuthentication, JWTHttpHeaderAuthentication, OAuth2
 */
export const getApiApiProjectIdTargetConstraints = async (args: GetApiApiProjectIdTargetConstraintsArgs, options?: GetApiApiProjectIdTargetConstraintsOptions) => {
const {baseUrl = "https://studio.edgeimpulse.com/v1", fetch: fetchFn = fetch, ApiKeyAuthentication} = options ?? {}

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

if (ApiKeyAuthentication !== undefined) headers.set("x-api-key", ApiKeyAuthentication)

const url = `${baseUrl.replace(/\/+$/, '')}/api/${encodeURIComponent(String(args.projectId))}/target-constraints${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(getTargetConstraintsResponse, await res.json())
};