init post-service

services/post-service/internal/service/post.go

@@ -0,0 +1,94 @@
+package service
+
+import (
+	"context"
+	"strings"
+
+	"github.com/hexolan/panels/post-service/internal"
+	"github.com/hexolan/panels/post-service/internal/kafka/producer"
+)
+
+type postService struct {
+	events producer.PostEventProducer
+
+	repo internal.PostRepository
+}
+
+func NewPostService(events producer.PostEventProducer, repo internal.PostRepository) internal.PostService {
+	return postService{
+		events: events,
+		repo: repo,
+	}
+}
+
+func (srv postService) CreatePost(ctx context.Context, panelId string, authorId string, data internal.PostCreate) (*internal.Post, error) {
+	// Validate the data
+	err := data.Validate()
+	if err != nil {
+		return nil, internal.NewServiceErrorf(internal.InvalidArgumentErrorCode, "invalid argument: %s", err.Error())
+	}
+
+	// Create the post
+	post, err := srv.repo.CreatePost(ctx, panelId, authorId, data)
+	
+	// Dispatch post created event
+	if err == nil {
+		srv.events.DispatchCreatedEvent(post)
+	}
+
+	return post, err
+}
+
+func (srv postService) GetPost(ctx context.Context, id internal.PostId) (*internal.Post, error) {
+	return srv.repo.GetPost(ctx, id)
+}
+
+func (srv postService) GetPanelPost(ctx context.Context, id internal.PostId, panelId string) (*internal.Post, error) {
+	panelId = strings.ToLower(panelId)  // Panel IDs are case insensitive
+	return srv.repo.GetPanelPost(ctx, id, panelId)
+}
+
+func (srv postService) UpdatePost(ctx context.Context, id internal.PostId, data internal.PostUpdate) (*internal.Post, error) {
+	// Validate the data
+	if data == (internal.PostUpdate{}) {
+		return nil, internal.NewServiceError(internal.InvalidArgumentErrorCode, "no values provided")
+	}
+
+	err := data.Validate()
+	if err != nil {
+		return nil, internal.NewServiceErrorf(internal.InvalidArgumentErrorCode, "invalid argument: %s", err.Error())
+	}
+
+	// Update the post
+	post, err := srv.repo.UpdatePost(ctx, id, data)
+
+	// Dispatch post created event
+	if err == nil {
+		srv.events.DispatchUpdatedEvent(post)
+	}
+
+	return post, err
+}
+
+func (srv postService) DeletePost(ctx context.Context, id internal.PostId) error {
+	err := srv.repo.DeletePost(ctx, id)
+	
+	// Dispatch post deleted event
+	if err == nil {
+		srv.events.DispatchDeletedEvent(id)
+	}
+
+	return err
+}
+
+func (srv postService) GetFeedPosts(ctx context.Context) ([]*internal.Post, error) {
+	return srv.repo.GetFeedPosts(ctx)
+}
+
+func (srv postService) GetUserPosts(ctx context.Context, userId string) ([]*internal.Post, error) {
+	return srv.repo.GetUserPosts(ctx, userId)
+}
+
+func (srv postService) GetPanelPosts(ctx context.Context, panelId string) ([]*internal.Post, error) {
+	return srv.repo.GetPanelPosts(ctx, panelId)
+}