feat: Implement CMS module with API endpoints, data model, and initial seeding for landing page content.

src/cms/cms.service.ts

@@ -0,0 +1,65 @@
+import { Injectable, NotFoundException } from '@nestjs/common';
+import { PrismaService } from '../prisma/prisma.service';
+import { CreateCmsContentDto, UpdateCmsContentDto } from './dto';
+
+@Injectable()
+export class CmsService {
+  constructor(private prisma: PrismaService) {}
+
+  async findByPage(pageSlug: string) {
+    return this.prisma.cmsContent.findMany({
+      where: { pageSlug, isPublished: true },
+      orderBy: { sectionKey: 'asc' },
+    });
+  }
+
+  async findByPageAndSection(pageSlug: string, sectionKey: string) {
+    const content = await this.prisma.cmsContent.findUnique({
+      where: { pageSlug_sectionKey: { pageSlug, sectionKey } },
+    });
+    if (!content) {
+      throw new NotFoundException(`CMS content not found for ${pageSlug}/${sectionKey}`);
+    }
+    return content;
+  }
+
+  async upsert(dto: CreateCmsContentDto) {
+    return this.prisma.cmsContent.upsert({
+      where: {
+        pageSlug_sectionKey: {
+          pageSlug: dto.pageSlug,
+          sectionKey: dto.sectionKey,
+        },
+      },
+      update: {
+        content: dto.content,
+        isPublished: dto.isPublished ?? true,
+      },
+      create: {
+        pageSlug: dto.pageSlug,
+        sectionKey: dto.sectionKey,
+        content: dto.content,
+        isPublished: dto.isPublished ?? true,
+      },
+    });
+  }
+
+  async update(id: string, dto: UpdateCmsContentDto) {
+    const existing = await this.prisma.cmsContent.findUnique({ where: { id } });
+    if (!existing) {
+      throw new NotFoundException(`CMS content with ID ${id} not found`);
+    }
+    return this.prisma.cmsContent.update({
+      where: { id },
+      data: dto,
+    });
+  }
+
+  async remove(id: string) {
+    const existing = await this.prisma.cmsContent.findUnique({ where: { id } });
+    if (!existing) {
+      throw new NotFoundException(`CMS content with ID ${id} not found`);
+    }
+    return this.prisma.cmsContent.delete({ where: { id } });
+  }
+}