feat: add books APIs

internal/repository/journal_repo.go

@@ -0,0 +1,89 @@
+package repository
+
+import (
+	"context"
+
+	"go.mongodb.org/mongo-driver/v2/bson"
+	"go.mongodb.org/mongo-driver/v2/mongo"
+	"go.mongodb.org/mongo-driver/v2/mongo/options"
+)
+
+type JournalRepo struct {
+	meta     *mongo.Collection
+	chapters *mongo.Collection
+}
+
+func NewJournalRepo(db *MongoDB) *JournalRepo {
+	return &JournalRepo{
+		meta:     db.Collection("journal_meta"),
+		chapters: db.Collection("journal_chapters"),
+	}
+}
+
+type JournalMetaDoc struct {
+	ID   bson.ObjectID `bson:"_id" json:"id"`
+	Book string        `bson:"book" json:"book"`
+	Data interface{}   `bson:"data" json:"data"`
+}
+
+type JournalChapterDoc struct {
+	ID         bson.ObjectID `bson:"_id" json:"id"`
+	Book       string        `bson:"book" json:"book"`
+	Chapter    int           `bson:"chapter" json:"chapter"`
+	Title      string        `bson:"title" json:"title"`
+	Type       string        `bson:"type" json:"type"`
+	Slug       string        `bson:"slug" json:"slug"`
+	Order      int           `bson:"order" json:"order"`
+	Paragraphs []string      `bson:"paragraphs" json:"paragraphs"`
+}
+
+func (r *JournalRepo) GetAllMetas(ctx context.Context) ([]JournalMetaDoc, error) {
+	cursor, err := r.meta.Find(ctx, bson.M{})
+	if err != nil {
+		return nil, err
+	}
+	defer cursor.Close(ctx)
+	var results []JournalMetaDoc
+	if err := cursor.All(ctx, &results); err != nil {
+		return nil, err
+	}
+	return results, nil
+}
+
+func (r *JournalRepo) GetMeta(ctx context.Context, book string) (*JournalMetaDoc, error) {
+	var doc JournalMetaDoc
+	err := r.meta.FindOne(ctx, bson.M{"book": book}).Decode(&doc)
+	if err != nil {
+		if err == mongo.ErrNoDocuments {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return &doc, nil
+}
+
+func (r *JournalRepo) GetChapters(ctx context.Context, book string) ([]JournalChapterDoc, error) {
+	opts := options.Find().SetSort(bson.M{"order": 1})
+	cursor, err := r.chapters.Find(ctx, bson.M{"book": book}, opts)
+	if err != nil {
+		return nil, err
+	}
+	defer cursor.Close(ctx)
+	var results []JournalChapterDoc
+	if err := cursor.All(ctx, &results); err != nil {
+		return nil, err
+	}
+	return results, nil
+}
+
+func (r *JournalRepo) GetChapter(ctx context.Context, book, slug string) (*JournalChapterDoc, error) {
+	var doc JournalChapterDoc
+	err := r.chapters.FindOne(ctx, bson.M{"book": book, "slug": slug}).Decode(&doc)
+	if err != nil {
+		if err == mongo.ErrNoDocuments {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return &doc, nil
+}