import {z} from 'zod'

export type CreateBudgetRequest = {max_limit: number, reset_duration: string, calendar_aligned?: boolean | undefined};

export type CreateRateLimitRequest = {token_max_limit?: number | undefined, token_reset_duration?: string | undefined, request_max_limit?: number | undefined, request_reset_duration?: string | undefined};

export type CreateModelConfigRequest = {model_name: string, provider?: string | undefined, scope?: ('global' | 'virtual_key' | 'user') | undefined, scope_id?: string | undefined, budgets?: Array<CreateBudgetRequest> | undefined, rate_limit?: CreateRateLimitRequest | undefined};

export type CreateApiApiGovernanceModelConfigsArgs = {body: CreateModelConfigRequest};

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

export const budget = z.object({id: z.string(), max_limit: z.number(), reset_duration: z.string(), calendar_aligned: z.boolean().optional(), last_reset: z.string(), current_usage: z.number(), team_id: z.string().optional(), virtual_key_id: z.string().optional(), provider_config_id: z.number().int().optional(), config_hash: z.string().nullable(), created_at: z.string(), updated_at: z.string()});

export const rateLimit = z.object({id: z.string(), token_max_limit: z.number().int().optional(), token_reset_duration: z.string().optional(), token_current_usage: z.number().int(), token_last_reset: z.string(), request_max_limit: z.number().int().nullable().optional(), request_reset_duration: z.string().nullable().optional(), request_current_usage: z.number().int(), request_last_reset: z.string(), config_hash: z.string().nullable(), created_at: z.string(), updated_at: z.string()});

export const modelConfig = z.object({id: z.string().optional(), model_name: z.string().optional(), provider: z.string().optional(), scope: z.enum(["global", "virtual_key", "user"]).optional(), scope_id: z.string().nullable().optional(), scope_name: z.string().nullable().optional(), calendar_aligned: z.boolean().optional(), budgets: z.array(budget).optional(), budget: budget.optional(), rate_limit: rateLimit.optional(), created_at: z.string().optional(), updated_at: z.string().optional()});

export const modelConfigResponse = z.object({message: z.string().optional(), model_config: modelConfig.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
};

/**
 * Create model config
 * 
 * POST /api/governance/model-configs
 */
export const createApiApiGovernanceModelConfigs = async (args: CreateApiApiGovernanceModelConfigsArgs, options?: CreateApiApiGovernanceModelConfigsOptions) => {
const {baseUrl = "http://localhost:8080", fetch: fetchFn = fetch, ManagementBearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/governance/model-configs${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", 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(modelConfigResponse, await res.json())
};