import {z} from 'zod'

export type CreateApiApiV1ListSolarBuybackPlansArgs = {body: {tdu?: string | undefined, providerType?: ('meter' | 'competitor') | undefined, termMonths?: number | undefined}};

export type CreateApiApiV1ListSolarBuybackPlansOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiApiV1ListSolarBuybackPlansResponse = z.object({name: z.literal("Texas Solar Buyback Plan Index"), generatedAt: z.string(), validThrough: z.string(), publisher: z.object({name: z.literal("Meter Energy Inc."), url: z.literal("https://meterplan.com"), puctBrokerNumber: z.literal("BR250137"), description: z.string()}), methodology: z.array(z.string()), assumptions: z.object({defaultProfileName: z.string(), monthlyImportKwh: z.number(), monthlyExportKwh: z.number(), nightImportPercent: z.number(), peakImportPercent: z.number(), daytimeImportPercent: z.number(), weekendImportPercent: z.number(), batteryBrand: z.string().nullable(), batteryKwh: z.number().nullable(), notes: z.array(z.string())}), tduReferences: z.array(z.object({tdu: z.string(), representativeZipcode: z.string(), plansUrl: z.string()})), sourceStatus: z.array(z.object({source: z.string(), status: z.enum(["ok", "partial", "unavailable"]), detail: z.string(), planCount: z.number()})), recommendedPages: z.array(z.object({label: z.string(), url: z.string(), description: z.string()})), plans: z.array(z.object({providerName: z.string(), providerType: z.enum(["meter", "competitor"]), planName: z.string(), tdu: z.string(), representativeZipcode: z.string(), termMonths: z.number(), planType: z.enum(["fixed_export", "real_time_wholesale", "free_nights", "battery_vpp", "standard", "other"]), importRateCentsPerKwh: z.number().nullable(), exportRateCentsPerKwh: z.number().nullable(), exportRateType: z.enum(["fixed", "real_time_wholesale", "none", "unknown"]), baseFeeDollarsPerMonth: z.number().nullable(), earlyTerminationFeeDollars: z.number().nullable(), estimatedAnnualCostDollars: z.number().nullable(), displayImportRate: z.string(), displayExportRate: z.string(), displayBaseFee: z.string(), displayEarlyTerminationFee: z.string(), batterySupport: z.object({tesla: z.boolean(), solaredge: z.boolean(), enphase: z.boolean(), qcells: z.boolean(), eligibleBrands: z.array(z.string()), customerStorageCreditDollarsPerKwhMonth: z.number().nullable(), storageCreditIncludedInEstimatedCost: z.boolean(), exampleMonthlyCreditDollars: z.number().nullable(), meterStorageCreditDollarsPerKwhMonth: z.number().nullable()}), creditNotes: z.array(z.string()), signupUrl: z.string().nullable(), sourceUrl: z.string(), updatedAt: z.string().nullable()})), filter: z.object({tdu: z.string().nullable(), providerType: z.enum(["meter", "competitor"]).nullable(), termMonths: z.number().nullable(), totalPlansBeforeFilter: z.number(), totalPlansAfterFilter: z.number()})});

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
};

/**
 * Texas Solar Buyback Plan Catalog
 * 
 * POST /api/v1/list-solar-buyback-plans
 */
export const createApiApiV1ListSolarBuybackPlans = async (args: CreateApiApiV1ListSolarBuybackPlansArgs, options?: CreateApiApiV1ListSolarBuybackPlansOptions) => {
const {baseUrl = "https://meterplan.com", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/list-solar-buyback-plans${query.size > 0 ? `?${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(createApiApiV1ListSolarBuybackPlansResponse, await res.json())
};