import {z} from 'zod'

export type CreateIssueDto = {title: string, description: string, environment: string, severity?: ('low' | 'medium' | 'high') | undefined, triggeredAt?: string | undefined, context?: ({alertUrl?: string | undefined, service?: string | undefined, traceId?: string | undefined, spanId?: string | undefined, errorType?: string | undefined, errorMessage?: string | undefined, host?: string | undefined, region?: string | undefined, version?: string | undefined, tags?: Array<string> | undefined, metadata?: {[key: string]: unknown} | undefined}) | undefined};

export type CreateApiIssuesArgs = {'Antimetal-Version'?: string | undefined, body: CreateIssueDto};

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

export const createIssueResponseDto = z.object({uuid: z.string(), number: z.number().int().gt(0).lte(9007199254740991), status: z.enum(["investigating", "ready_to_fix", "resolved", "muted"]), title: z.string(), description: z.string(), environment: z.string().optional(), severity: z.enum(["low", "medium", "high"]), createdAt: z.string(), updatedAt: z.string(), triggeredAt: z.string(), latestVersion: z.number().int().gte(1).lte(9007199254740991)});

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 new issue
 * 
 * POST /issues
 */
export const createApiIssues = async (args: CreateApiIssuesArgs, options?: CreateApiIssuesOptions) => {
const {baseUrl = "https://bff.antimetal.com/api/v2", fetch: fetchFn = fetch, bearer} = options ?? {}

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

if (args['Antimetal-Version'] != null) headers.set("Antimetal-Version", String(args['Antimetal-Version']))
if (bearer !== undefined) headers.set('authorization', `Bearer ${bearer}`)

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