import {z} from 'zod'

export type CorrectionIn = {excerpt: string, corrected_at: string, session_ref?: (string | null) | undefined};

export type ProposalItem = {change?: string | undefined, text: string, applies_to?: Array<string> | undefined, tags?: Array<string> | undefined, why?: (string | null) | undefined, origin?: string | undefined, replaces?: (string | null) | undefined, replaces_version?: (number | null) | undefined, evidence_sessions?: number | undefined, corrections?: Array<CorrectionIn> | undefined};

export type ProposeRulesRequest = {repo_remote: string, items: Array<ProposalItem>};

export type CreateApiDatamatesDatamateIdRulesProposalsArgs = {datamate_id: number, body: ProposeRulesRequest};

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

export const proposalResult = z.object({index: z.number().int(), status: z.string(), public_id: z.string().nullable().optional(), rule_key: z.string().nullable().optional(), version: z.number().int().nullable().optional(), duplicate: z.boolean().optional(), weakens_verification: z.boolean().optional(), verification_reason: z.string().nullable().optional(), error_code: z.string().nullable().optional(), error_detail: z.string().nullable().optional()});

export const proposeRulesResponse = z.object({results: z.array(proposalResult)});

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
};

/**
 * Propose Rules
 * 
 * POST /datamates/{datamate_id}/rules/proposals
 * 
 * Also accepts auth: HTTPBearer
 */
export const createApiDatamatesDatamateIdRulesProposals = async (args: CreateApiDatamatesDatamateIdRulesProposalsArgs, options: CreateApiDatamatesDatamateIdRulesProposalsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/datamates/${encodeURIComponent(String(args.datamate_id))}/rules/proposals${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(proposeRulesResponse, await res.json())
};