import {z} from 'zod'

export type GetApiApiopsProjectsProjectNameUsageTopArgs = {projectName: string, dimension: string, metric?: string | undefined, organization?: string | undefined, from?: string | undefined, to?: string | undefined, model?: string | undefined, environmentName?: string | undefined, limit?: number | undefined};

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

export const period = z.object({from: z.string().optional(), to: z.string().optional(), effectiveFrom: z.string().optional(), effectiveTo: z.string().optional(), timeZone: z.string().optional()});

export const filters = z.object({model: z.string().optional(), environmentName: z.string().optional(), environmentApplied: z.boolean().optional()});

export const row = z.object({key: z.string().optional(), name: z.string().optional(), family: z.enum(["AI_TOKEN", "AI_COST", "REQUEST_QUOTA"]).optional(), unit: z.enum(["TOKENS", "USD", "REQUESTS"]).optional(), window: z.string().optional(), limit: z.number().optional(), consumed: z.number().optional(), remaining: z.number().optional(), percent: z.number().optional(), windowStartsAt: z.string().optional(), resetsAt: z.string().optional(), assignmentKey: z.string().optional(), planKey: z.string().optional(), source: z.enum(["TYPED", "LEGACY_BUDGET", "POLICY"]).optional(), status: z.enum(["OK", "WARNING", "EXCEEDED", "NO_BUDGET"]).optional()});

export const apiOpsUsageRankingDTO = z.object({dimension: z.string().optional(), metric: z.string().optional(), unit: z.string().optional(), period: period.optional(), filters: filters.optional(), dataSource: z.string().optional(), freshness: z.string().optional(), total: z.number().optional(), limit: z.number().int().optional(), truncated: z.boolean().optional(), items: z.array(row).optional(), partial: z.boolean().optional(), unavailableEnvironments: z.array(z.string()).optional(), notes: z.array(z.string()).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
};

/**
 * Ranks the period's biggest consumers
 * 
 * GET /apiops/projects/{projectName}/usage/top
 */
export const getApiApiopsProjectsProjectNameUsageTop = async (args: GetApiApiopsProjectsProjectNameUsageTopArgs, options?: GetApiApiopsProjectsProjectNameUsageTopOptions) => {
const {baseUrl = "http://167.86.118.166:32080", fetch: fetchFn = fetch} = options ?? {}

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

if (args.dimension != null) query.append("dimension", String(args.dimension))
if (args.metric != null) query.append("metric", String(args.metric))
if (args.organization != null) query.append("organization", String(args.organization))
if (args.from != null) query.append("from", String(args.from))
if (args.to != null) query.append("to", String(args.to))
if (args.model != null) query.append("model", String(args.model))
if (args.environmentName != null) query.append("environmentName", String(args.environmentName))
if (args.limit != null) query.append("limit", String(args.limit))

const url = `${baseUrl.replace(/\/+$/, '')}/apiops/projects/${encodeURIComponent(String(args.projectName))}/usage/top${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(apiOpsUsageRankingDTO, await res.json())
};