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import { environment } from '../../../environments/environment';
import { HttpClient, HttpContext, HttpParams } from '@angular/common/http';
import { Injectable, inject } from '@angular/core';
import { SKIP_ERROR_NOTIFICATION } from '@drevo-web/core';
import {
ApiResponse,
ApprovalStatusDto,
ArticleHistoryResponseDto,
ArticlePreviewRequestDto,
ArticlePreviewResponseDto,
ArticleSearchResponseDto,
ArticleVersionDto,
ModerationRequestDto,
ModerationResponseDto,
SaveArticleVersionRequestDto,
SaveArticleVersionResponseDto,
VersionPairsResponseDto,
assertIsDefined,
} from '@drevo-web/shared';
import { Observable } from 'rxjs';
import { map } from 'rxjs/operators';
/**
* Low-level API service for article-related HTTP requests.
*
* IMPORTANT: This service should NOT be used directly by components or other services.
* All article-related operations should go through ArticleService, which handles
* data mapping and additional business logic.
*
* @internal Use ArticleService instead
*/
@Injectable({
providedIn: 'root',
})
export class ArticleApiService {
private readonly apiUrl = environment.apiUrl;
private readonly http = inject(HttpClient);
/**
* Get article by ID
*
* @param id - Article ID
* @returns Observable with raw API response
*/
getArticle(id: number): Observable<ArticleVersionDto> {
return this.http
.get<ApiResponse<ArticleVersionDto>>(`${this.apiUrl}/api/articles/show/${id}`, { withCredentials: true })
.pipe(
map(response => {
assertIsDefined(response.data, 'Response data is undefined');
return response.data;
})
);
}
/**
* Get article version for viewing (with formatted HTML content)
*
* @param versionId - Version ID
* @returns Observable with raw API response containing version details
*/
getVersionShow(versionId: number): Observable<ArticleVersionDto> {
return this.http
.get<
ApiResponse<ArticleVersionDto>
>(`${this.apiUrl}/api/articles/version-show/${versionId}`, { withCredentials: true })
.pipe(
map(response => {
assertIsDefined(response.data, 'Response data is undefined');
return response.data;
})
);
}
/**
* Get article version by ID (for editing)
*
* @param versionId - Version ID
* @returns Observable with raw API response containing version details
*/
getArticleVersion(versionId: number): Observable<ArticleVersionDto> {
return this.http
.get<
ApiResponse<ArticleVersionDto>
>(`${this.apiUrl}/api/articles/version/${versionId}`, { withCredentials: true })
.pipe(
map(response => {
assertIsDefined(response.data, 'Response data is undefined');
return response.data;
})
);
}
/**
* Search articles by title
*
* @param query - Search query string (empty string returns all articles)
* @param page - Page number (1-based)
* @param pageSize - Number of items per page
* @returns Observable with raw API response
*/
searchArticles(
query = '',
page = 1,
pageSize = DEFAULT_ARTICLE_SEARCH_PAGE_SIZE
): Observable<ArticleSearchResponseDto> {
let params = new HttpParams().set('page', page.toString()).set('size', pageSize.toString());
const trimmedQuery = query.trim();
if (trimmedQuery) {
params = params.set('q', trimmedQuery);
}
return this.http
.get<
ApiResponse<ArticleSearchResponseDto>
>(`${this.apiUrl}/api/articles/search`, { params, withCredentials: true })
.pipe(
map(response => {
assertIsDefined(response.data, 'Response data is undefined');
return response.data;
})
);
}
/**
* Save article version
*
* @param request - Save request with versionId, content, and optional info
* @returns Observable with raw API response
*/
saveArticleVersion(request: SaveArticleVersionRequestDto): Observable<SaveArticleVersionResponseDto> {
const context = new HttpContext().set(SKIP_ERROR_NOTIFICATION, true);
return this.http
.post<
ApiResponse<SaveArticleVersionResponseDto>
>(`${this.apiUrl}/api/articles/save`, request, { withCredentials: true, context })
.pipe(
map(response => {
assertIsDefined(response.data, 'Response data is undefined');
return response.data;
})
);
}
/**
* Get article version history
*
* @param page - Page number (1-based)
* @param pageSize - Number of items per page
* @param approved - Optional approval status filter (-1, 0, 1)
* @param author - Optional author login filter
* @returns Observable with raw API response
*/
getArticlesHistory(
page = 1,
pageSize = DEFAULT_ARTICLE_SEARCH_PAGE_SIZE,
approved?: ApprovalStatusDto,
author?: string,
articleId?: number
): Observable<ArticleHistoryResponseDto> {
let params = new HttpParams().set('page', page.toString()).set('size', pageSize.toString());
if (approved !== undefined) {
params = params.set('approved', approved.toString());
}
if (author) {
params = params.set('author', author);
}
if (articleId !== undefined) {
params = params.set('articleId', articleId.toString());
}
return this.http
.get<
ApiResponse<ArticleHistoryResponseDto>
>(`${this.apiUrl}/api/articles/history`, { params, withCredentials: true })
.pipe(
map(response => {
assertIsDefined(response.data, 'Response data is undefined');
return response.data;
})
);
}
/**
* Moderate article version (approve or reject)
*
* @param request - Moderation request with versionId, approved status, and optional comment
* @returns Observable with moderation response
*/
moderateVersion(request: ModerationRequestDto): Observable<ModerationResponseDto> {
return this.http
.post<ApiResponse<ModerationResponseDto>>(`${this.apiUrl}/api/articles/moderate`, request, {
withCredentials: true,
})
.pipe(
map(response => {
assertIsDefined(response.data, 'Response data is undefined');
return response.data;
})
);
}
/**
* Preview formatted article content without saving
*
* @param request - Preview request with content and articleId
* @returns Observable with formatted HTML content
*/
previewArticle(request: ArticlePreviewRequestDto): Observable<ArticlePreviewResponseDto> {
return this.http
.post<ApiResponse<ArticlePreviewResponseDto>>(`${this.apiUrl}/api/articles/preview`, request, {
withCredentials: true,
context: new HttpContext().set(SKIP_ERROR_NOTIFICATION, true),
})
.pipe(
map(response => {
assertIsDefined(response.data, 'Response data is undefined');
return response.data;
})
);
}
/**
* Update article topics
*
* @param articleId - Article ID
* @param topics - Array of topic IDs
* @returns Observable with updated topic IDs
*/
updateTopics(articleId: number, topics: readonly number[]): Observable<readonly number[]> {
return this.http
.post<ApiResponse<{ readonly topics: readonly number[] }>>(
`${this.apiUrl}/api/articles/${articleId}/topics`,
{ topics },
{ withCredentials: true, context: new HttpContext().set(SKIP_ERROR_NOTIFICATION, true) }
)
.pipe(
map(response => {
assertIsDefined(response.data, 'Response data is undefined');
return response.data.topics;
})
);
}
/**
* Get two versions for diff comparison
*
* @param version1 - Primary version ID
* @param version2 - Optional secondary version ID (auto-detected if omitted)
* @returns Observable with version pairs DTO
*/
getVersionPairs(version1: number, version2?: number): Observable<VersionPairsResponseDto> {
let params = new HttpParams().set('version1', version1.toString());
if (version2 !== undefined) {
params = params.set('version2', version2.toString());
}
return this.http
.get<ApiResponse<VersionPairsResponseDto>>(`${this.apiUrl}/api/articles/versionpairs`, {
params,
withCredentials: true,
context: new HttpContext().set(SKIP_ERROR_NOTIFICATION, true),
})
.pipe(
map(response => {
assertIsDefined(response.data, 'Response data is undefined');
return response.data;
})
);
}
}
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