40 lines
1.6 KiB
TypeScript
40 lines
1.6 KiB
TypeScript
import { PageQuery } from '@/lib/contracts/page-queries/PageQuery';
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import { Result } from '@/lib/contracts/Result';
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import { AdminService } from '@/lib/services/admin/AdminService';
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import { AdminDashboardViewDataBuilder } from '@/lib/builders/view-data/AdminDashboardViewDataBuilder';
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import type { AdminDashboardViewData } from '@/lib/view-data/AdminDashboardViewData';
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import { PresentationError, mapToPresentationError } from '@/lib/contracts/page-queries/PresentationError';
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/**
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* AdminDashboardPageQuery
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*
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* Server-side composition for admin dashboard page.
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* Fetches dashboard statistics from API and transforms to ViewData.
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*
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* Follows Clean Architecture: Uses builders for transformation.
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*/
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export class AdminDashboardPageQuery implements PageQuery<AdminDashboardViewData, void, PresentationError> {
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async execute(): Promise<Result<AdminDashboardViewData, PresentationError>> {
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// Manual construction: Service creates its own dependencies
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const adminService = new AdminService();
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// Fetch dashboard stats
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const apiDtoResult = await adminService.getDashboardStats();
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if (apiDtoResult.isErr()) {
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return Result.err(mapToPresentationError(apiDtoResult.getError()));
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}
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// Transform to ViewData using builder
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const output = AdminDashboardViewDataBuilder.build(apiDtoResult.unwrap());
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return Result.ok(output);
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}
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// Static method to avoid object construction in server code
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static async execute(): Promise<Result<AdminDashboardViewData, PresentationError>> {
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const query = new AdminDashboardPageQuery();
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return query.execute();
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}
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}
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