import {z} from 'zod'

export type GetApiProjectsProjectIdEnvironmentsEnvironmentIdAutoscalingSettingsArgs = {projectId: string, environmentId: string};

export type GetApiProjectsProjectIdEnvironmentsEnvironmentIdAutoscalingSettingsOptions = {baseUrl?: string | undefined, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const autoscalerCPUTrigger = z.object({enabled: z.boolean().nullable().optional(), down: z.object({threshold: z.number().gte(0).lte(100), duration: z.union([z.literal(60), z.literal(120), z.literal(300), z.literal(600), z.literal(1800), z.literal(3600)]).optional(), enabled: z.boolean().nullable().optional()}).optional(), up: z.object({threshold: z.number().gte(0).lte(100), duration: z.union([z.literal(60), z.literal(120), z.literal(300), z.literal(600), z.literal(1800), z.literal(3600)]).optional(), enabled: z.boolean().nullable().optional()}).optional()});

export const autoscalerMemoryTrigger = z.object({enabled: z.boolean().nullable().optional(), down: z.object({threshold: z.number().gte(0).lte(100), duration: z.union([z.literal(60), z.literal(120), z.literal(300), z.literal(600), z.literal(1800), z.literal(3600)]).optional(), enabled: z.boolean().nullable().optional()}).optional(), up: z.object({threshold: z.number().gte(0).lte(100), duration: z.union([z.literal(60), z.literal(120), z.literal(300), z.literal(600), z.literal(1800), z.literal(3600)]).optional(), enabled: z.boolean().nullable().optional()}).optional()});

export const autoscalerCPUPressureTrigger = z.object({enabled: z.boolean().nullable().optional(), down: z.object({threshold: z.number().gte(0).lte(100), duration: z.union([z.literal(60), z.literal(120), z.literal(300), z.literal(600), z.literal(1800), z.literal(3600)]).optional(), enabled: z.boolean().nullable().optional()}).optional(), up: z.object({threshold: z.number().gte(0).lte(100), duration: z.union([z.literal(60), z.literal(120), z.literal(300), z.literal(600), z.literal(1800), z.literal(3600)]).optional(), enabled: z.boolean().nullable().optional()}).optional()});

export const autoscalerMemoryPressureTrigger = z.object({enabled: z.boolean().nullable().optional(), down: z.object({threshold: z.number().gte(0).lte(100), duration: z.union([z.literal(60), z.literal(120), z.literal(300), z.literal(600), z.literal(1800), z.literal(3600)]).optional(), enabled: z.boolean().nullable().optional()}).optional(), up: z.object({threshold: z.number().gte(0).lte(100), duration: z.union([z.literal(60), z.literal(120), z.literal(300), z.literal(600), z.literal(1800), z.literal(3600)]).optional(), enabled: z.boolean().nullable().optional()}).optional()});

export const autoscalerCPUResources = z.object({min: z.number().gte(0).optional(), max: z.number().gte(0).optional()});

export const autoscalerMemoryResources = z.object({min: z.number().int().gte(0).optional(), max: z.number().int().gte(0).optional()});

export const autoscalerServiceSettings = z.object({triggers: z.object({cpu: z.record(z.string(), autoscalerCPUTrigger).nullable().optional(), memory: z.record(z.string(), autoscalerMemoryTrigger).nullable().optional(), cpu_pressure: z.record(z.string(), autoscalerCPUPressureTrigger).nullable().optional(), memory_pressure: z.record(z.string(), autoscalerMemoryPressureTrigger).nullable().optional()}).optional(), instances: z.object({min: z.number().int().optional(), max: z.number().int().optional()}).optional(), resources: z.object({cpu: z.record(z.string(), autoscalerCPUResources).nullable().optional(), memory: z.record(z.string(), autoscalerMemoryResources).nullable().optional()}).optional(), scale_factor: z.object({up: z.number().int().gte(0).optional(), down: z.number().int().gte(0).optional()}).optional(), scale_cooldown: z.object({up: z.number().int().gte(0).optional(), down: z.number().int().gte(0).optional()}).optional()});

export const autoscalerSettings = z.object({services: z.record(z.string(), z.record(z.string(), autoscalerServiceSettings).nullable()).nullable().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
};

/**
 * Retrieves Autoscaler settings
 * 
 * GET /projects/{projectId}/environments/{environmentId}/autoscaling/settings
 */
export const getApiProjectsProjectIdEnvironmentsEnvironmentIdAutoscalingSettings = async (args: GetApiProjectsProjectIdEnvironmentsEnvironmentIdAutoscalingSettingsArgs, options?: GetApiProjectsProjectIdEnvironmentsEnvironmentIdAutoscalingSettingsOptions) => {
const {baseUrl = "https://api.upsun.com", fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/projects/${encodeURIComponent(String(args.projectId))}/environments/${encodeURIComponent(String(args.environmentId))}/autoscaling/settings${query.size > 0 ? `?${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(autoscalerSettings, await res.json())
};