import {z} from 'zod'

export type ContextType = '1:1' | '1:N' | 'N:M';

export type CreateContextSourceRequest = {name: string, type: 'LEDGER' | 'BANK' | 'GATEWAY' | 'CUSTOM' | 'FETCHER', side: 'LEFT' | 'RIGHT', config?: {[key: string]: unknown} | undefined, mapping?: {[key: string]: unknown} | undefined};

export type CreateContextRequest = {name: string, type: ContextType, interval: string, feeToleranceAbs?: string | undefined, feeTolerancePct?: string | undefined, feeNormalization?: ('NET' | 'GROSS') | undefined, autoMatchOnUpload?: boolean | undefined, sources?: Array<CreateContextSourceRequest> | undefined, rules?: (Array<{priority: number, type: 'EXACT' | 'TOLERANCE' | 'DATE_LAG', config?: {[key: string]: unknown} | undefined}>) | undefined};

export type CreateApiV1ContextsArgs = {'X-Request-Id'?: string | undefined, 'X-Idempotency-Key'?: string | undefined, body: CreateContextRequest};

export type CreateApiV1ContextsOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const reconciliationContextResponse = z.object({id: z.string().optional(), tenantId: z.string().optional(), name: z.string().optional(), type: z.enum(["1:1", "1:N", "N:M"]).optional(), interval: z.string().optional(), status: z.enum(["DRAFT", "ACTIVE", "PAUSED", "ARCHIVED"]).optional(), feeToleranceAbs: z.string().optional(), feeTolerancePct: z.string().optional(), feeNormalization: z.enum(["NET", "GROSS"]).optional(), autoMatchOnUpload: z.boolean().optional(), createdAt: z.string().optional(), updatedAt: 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
};

/**
 * Create a reconciliation context
 * 
 * POST /v1/contexts
 */
export const createApiV1Contexts = async (args: CreateApiV1ContextsArgs, options?: CreateApiV1ContextsOptions) => {
const {baseUrl = "https://identity.sandbox.lerian.net", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args['X-Request-Id'] != null) headers.set("X-Request-Id", String(args['X-Request-Id']))
if (args['X-Idempotency-Key'] != null) headers.set("X-Idempotency-Key", String(args['X-Idempotency-Key']))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/contexts${query.size > 0 ? `?${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(reconciliationContextResponse, await res.json())
};