import {z} from 'zod'

export type SeverityLevel = 'critical' | 'high' | 'medium' | 'low';

export type LabelType = 'performance_and_optimization' | 'security' | 'error_handling' | 'refactoring' | 'maintainability' | 'potential_issues' | 'code_style' | 'documentation_and_comments' | 'kody_rules' | 'breaking_changes' | 'bug' | 'performance' | 'cross_file';

export type IssueStatus = 'open' | 'resolved' | 'dismissed';

export type GetApiIssuesArgs = {title?: string | undefined, severity?: SeverityLevel | undefined, category?: LabelType | undefined, status?: IssueStatus | undefined, organizationId?: string | undefined, repositoryName?: string | undefined, prNumber?: number | undefined, filePath?: string | undefined, prAuthor?: string | undefined, beforeAt?: string | undefined, afterAt?: string | undefined};

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

export const apiArrayResponseDto = z.object({statusCode: z.number(), type: z.string(), data: z.array(z.object({}))});

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
};

/**
 * List issues
 * 
 * GET /issues
 */
export const getApiIssues = async (args: GetApiIssuesArgs, options?: GetApiIssuesOptions) => {
const {baseUrl = "http://localhost:3001", fetch: fetchFn = fetch, jwt} = options ?? {}

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

if (args.title != null) query.append("title", String(args.title))
if (args.severity != null) query.append("severity", String(args.severity))
if (args.category != null) query.append("category", String(args.category))
if (args.status != null) query.append("status", String(args.status))
if (args.organizationId != null) query.append("organizationId", String(args.organizationId))
if (args.repositoryName != null) query.append("repositoryName", String(args.repositoryName))
if (args.prNumber != null) query.append("prNumber", String(args.prNumber))
if (args.filePath != null) query.append("filePath", String(args.filePath))
if (args.prAuthor != null) query.append("prAuthor", String(args.prAuthor))
if (args.beforeAt != null) query.append("beforeAt", String(args.beforeAt))
if (args.afterAt != null) query.append("afterAt", String(args.afterAt))
if (jwt !== undefined) headers.set('authorization', `Bearer ${jwt}`)

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