import {z} from 'zod'

export type GetApiV1ProjectsIdCreditsArgs = {id: string};

export type GetApiV1ProjectsIdCreditsOptions = {baseUrl?: string | undefined, bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const projectCreditDataSummary = z.object({exPost: z.number(), exPostCancelled: z.number(), exAnte: z.number(), exAnteCancelled: z.number(), retired: z.number(), validated: z.number()});

export const creditVintageEventFile = z.object({fileName: z.string(), id: z.string(), size: z.number().optional(), url: z.string(), type: z.enum(["proofOfConcept", "proofOfOwnership", "projectDescription", "validationReport", "monitoringReport", "verificationReport", "otherNote", "noIssuanceStatement", "hostCountryApprovalDocument", "kmlFile", "representationDeed", "projectDesignDescriptionAndMonitoringReport", "vvbAgreement", "validationAndVerificationReport", "methodologyConcept", "nonPerformanceReport", "reversalEventReport", "reviewReport"]).optional()});

export const verificationBodyData = z.object({id: z.string(), directoryUrl: z.string(), fullName: z.string()});

export const creditVintageEventData = z.object({id: z.string(), vintage: z.string(), createdAt: z.string(), amount: z.number(), type: z.literal("issuance"), creditType: z.enum(["carbon", "water", "energy"]), monitoringPeriodStart: z.string().optional(), monitoringPeriodEnd: z.string().optional(), files: z.array(creditVintageEventFile), verificationBody: verificationBodyData.optional()});

export const projectCreditVintageData = z.object({events: z.array(creditVintageEventData), vintage: z.string(), summary: projectCreditDataSummary});

export const apiProject = z.object({id: z.string(), fullName: z.string(), url: z.string(), publicUrl: z.string(), num: z.number()});

export const projectCreditDataResponseDto = z.object({summary: projectCreditDataSummary, vintages: z.array(projectCreditVintageData), project: apiProject});

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
};

/**
 * Retrieve credits for a specific project
 * 
 * GET /v1/projects/{id}/credits
 */
export const getApiV1ProjectsIdCredits = async (args: GetApiV1ProjectsIdCreditsArgs, options?: GetApiV1ProjectsIdCreditsOptions) => {
const {baseUrl = "https://api.carbonregistry.com", fetch: fetchFn = fetch, bearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/projects/${encodeURIComponent(String(args.id))}/credits${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(projectCreditDataResponseDto, await res.json())
};