import {z} from 'zod'

export type UnitCostFormula = {[key: string]: unknown};

export type UnitCostFormulaArray = Array<UnitCostFormula>;

export type UnitCostQuery = {[key: string]: unknown};

export type UnitCostQueryArray = Array<UnitCostQuery>;

export type UnitCostQueryDefinition = {formulas: UnitCostFormulaArray, queries: UnitCostQueryArray} | {[key: string]: unknown};

export type UnitCostRequestAttributes = {denominator_query: UnitCostQueryDefinition, description?: (string | null) | undefined, name: string, numerator_query: UnitCostQueryDefinition, unit_label: string};

export type UnitCostType = 'unit_cost';

export type UnitCostCreateRequestData = {attributes: UnitCostRequestAttributes, type: UnitCostType};

export type UnitCostCreateRequest = {data: UnitCostCreateRequestData};

export type CreateApiApiV2CostUnitCostsArgs = {body: UnitCostCreateRequest};

export type CreateApiApiV2CostUnitCostsOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, appKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const unitCostFormula = z.record(z.string(), z.unknown());

export const unitCostFormulaArray = z.array(unitCostFormula);

export const unitCostQuery = z.record(z.string(), z.unknown());

export const unitCostQueryArray = z.array(unitCostQuery);

export const unitCostQueryDefinition = z.object({formulas: unitCostFormulaArray, queries: unitCostQueryArray}).and(z.record(z.string(), z.unknown()));

export const unitCostDataAttributesResponse = z.object({created_at: z.string(), created_by: z.string(), denominator_query: unitCostQueryDefinition, denominator_type: z.string(), description: z.string().nullable().optional(), name: z.string(), numerator_query: unitCostQueryDefinition, org_id: z.number().int(), unit_label: z.string(), updated_at: z.string(), updated_by: z.string()});

export const unitCostType = z.literal("unit_cost");

export const unitCostDataResponse = z.object({attributes: unitCostDataAttributesResponse, id: z.string(), type: unitCostType});

export const unitCostResponse = z.object({data: unitCostDataResponse});

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 a unit cost
 * 
 * POST /api/v2/cost/unit_costs
 * 
 * Also accepts auth: AuthZ
 */
export const createApiApiV2CostUnitCosts = async (args: CreateApiApiV2CostUnitCostsArgs, options?: CreateApiApiV2CostUnitCostsOptions) => {
const {baseUrl = "https://api.datadoghq.com", fetch: fetchFn = fetch, apiKeyAuth, appKeyAuth} = options ?? {}

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

if (apiKeyAuth !== undefined) headers.set("DD-API-KEY", apiKeyAuth)
if (appKeyAuth !== undefined) headers.set("DD-APPLICATION-KEY", appKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/cost/unit_costs${query.size > 0 ? `?${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(unitCostResponse, await res.json())
};