/** 代码行级评论领域：浏览页与提交页共用的行级评论读写。 */

import { unwrapApi } from '@app/lib'
import type { CreateCodeCommentCmd, EnvelopeCodeCommentDto } from '@app/services/api'
import Apis from '@app/services/api'

export type CodeComment = NonNullable<EnvelopeCodeCommentDto['data']>

/** 分页响应在生成器里是泛型 `Page`，行类型由此显式声明。 */
export interface CodeCommentPageData {
  items: CodeComment[]
  total: number
  limit: number
  offset: number
}

export const listCodeComments = (
  space: string,
  repo: string,
  params: { path?: string; revision?: string; resolved?: boolean; limit?: number; offset?: number } = {},
) =>
  Apis.codeComments
    .list_code_comments({
      pathParams: { space_name: space, repo_name: repo },
      params: {
        path: params.path,
        revision: params.revision,
        resolved: params.resolved,
        limit: params.limit,
        offset: params.offset,
      },
    })
    .then((res) => res as unknown as { data?: CodeCommentPageData })
    .then((res) => res.data ?? { items: [], total: 0, limit: 0, offset: 0 })

export const createCodeComment = (space: string, repo: string, cmd: CreateCodeCommentCmd) =>
  unwrapApi<CodeComment>(
    Apis.codeComments.create_code_comment({
      pathParams: { space_name: space, repo_name: repo },
      data: cmd,
    }),
  )

export const updateCodeComment = (space: string, repo: string, commentId: string, body: string) =>
  unwrapApi<CodeComment>(
    Apis.codeComments.update_code_comment({
      pathParams: { space_name: space, repo_name: repo, comment_id: commentId },
      data: { body },
    }),
  )

export const deleteCodeComment = (space: string, repo: string, commentId: string) =>
  unwrapApi<unknown>(
    Apis.codeComments.delete_code_comment({
      pathParams: { space_name: space, repo_name: repo, comment_id: commentId },
    }),
  )

export const resolveCodeComment = (space: string, repo: string, commentId: string) =>
  unwrapApi<CodeComment>(
    Apis.codeComments.resolve_code_comment({
      pathParams: { space_name: space, repo_name: repo, comment_id: commentId },
    }),
  )

export const unresolveCodeComment = (space: string, repo: string, commentId: string) =>
  unwrapApi<CodeComment>(
    Apis.codeComments.unresolve_code_comment({
      pathParams: { space_name: space, repo_name: repo, comment_id: commentId },
    }),
  )

/** 把评论按 `path#line` 归组，供 diff / 代码视图按行渲染。 */
export function groupCommentsByLine(rows: CodeComment[]): Map<string, CodeComment[]> {
  const map = new Map<string, CodeComment[]>()
  for (const row of rows) {
    const key = `${row.path}#${row.line}`
    const list = map.get(key) ?? []
    list.push(row)
    map.set(key, list)
  }
  return map
}