feat: add books APIs

2026-05-09 23:19:19 +05:30
commit b055b8ba0c
43 changed files with 4307 additions and 0 deletions
@@ -0,0 +1,160 @@
+package repository
+
+import (
+	"context"
+	"time"
+
+	"go.mongodb.org/mongo-driver/v2/bson"
+	"go.mongodb.org/mongo-driver/v2/mongo"
+	"go.mongodb.org/mongo-driver/v2/mongo/options"
+)
+
+type DiscipleRepo struct {
+	col *mongo.Collection
+}
+
+func NewDiscipleRepo(db *MongoDB) *DiscipleRepo {
+	return &DiscipleRepo{col: db.Collection("disciples")}
+}
+
+type DiscipleDoc struct {
+	ID              bson.ObjectID `bson:"_id" json:"id"`
+	InitiatedName   string        `bson:"initiatedName" json:"initiated_name"`
+	Suffix          string        `bson:"suffix" json:"suffix"`
+	InitiationDate  *time.Time    `bson:"initiationDate,omitempty" json:"initiation_date,omitempty"`
+	InitiationPlace *string       `bson:"initiationPlace,omitempty" json:"initiation_place,omitempty"`
+	KarmiName       *string       `bson:"karmiName,omitempty" json:"karmi_name,omitempty"`
+	Avatar          *string       `bson:"avatar,omitempty" json:"avatar,omitempty"`
+	About           *string       `bson:"about,omitempty" json:"about,omitempty"`
+	Tags            []string      `bson:"tags" json:"tags"`
+	IsVerified      bool          `bson:"isVerified" json:"is_verified"`
+}
+
+type DiscipleSummaryDoc struct {
+	ID              bson.ObjectID `bson:"_id" json:"id"`
+	InitiatedName   string        `bson:"initiatedName" json:"initiated_name"`
+	Suffix          string        `bson:"suffix" json:"suffix"`
+	InitiationDate  *time.Time    `bson:"initiationDate,omitempty" json:"initiation_date,omitempty"`
+	InitiationPlace *string       `bson:"initiationPlace,omitempty" json:"initiation_place,omitempty"`
+	IsVerified      bool          `bson:"isVerified" json:"is_verified"`
+}
+
+var discipleSummaryProjection = bson.M{
+	"initiatedName": 1, "suffix": 1, "initiationDate": 1,
+	"initiationPlace": 1, "isVerified": 1,
+}
+
+func (r *DiscipleRepo) GetByLetter(ctx context.Context, letter string) ([]DiscipleSummaryDoc, error) {
+	// Case-insensitive starts-with using regex
+	filter := bson.M{"initiatedName": bson.M{"$regex": "^" + letter, "$options": "i"}}
+	opts := options.Find().
+		SetSort(bson.M{"initiatedName": 1}).
+		SetProjection(discipleSummaryProjection)
+
+	cursor, err := r.col.Find(ctx, filter, opts)
+	if err != nil {
+		return nil, err
+	}
+	defer cursor.Close(ctx)
+	var results []DiscipleSummaryDoc
+	if err := cursor.All(ctx, &results); err != nil {
+		return nil, err
+	}
+	return results, nil
+}
+
+func (r *DiscipleRepo) GetByLetterAndSuffix(ctx context.Context, letter *string, suffix *string) ([]DiscipleSummaryDoc, error) {
+	filter := bson.M{}
+	if letter != nil {
+		filter["initiatedName"] = bson.M{"$regex": "^" + *letter, "$options": "i"}
+	}
+	if suffix != nil && *suffix != "all" {
+		filter["suffix"] = *suffix
+	}
+
+	opts := options.Find().
+		SetSort(bson.M{"initiatedName": 1}).
+		SetProjection(discipleSummaryProjection)
+
+	cursor, err := r.col.Find(ctx, filter, opts)
+	if err != nil {
+		return nil, err
+	}
+	defer cursor.Close(ctx)
+	var results []DiscipleSummaryDoc
+	if err := cursor.All(ctx, &results); err != nil {
+		return nil, err
+	}
+	return results, nil
+}
+
+func (r *DiscipleRepo) Count(ctx context.Context) (int64, error) {
+	return r.col.CountDocuments(ctx, bson.M{})
+}
+
+func (r *DiscipleRepo) CountFiltered(ctx context.Context, letter *string, suffix *string) (int64, error) {
+	filter := bson.M{}
+	if letter != nil {
+		filter["initiatedName"] = bson.M{"$regex": "^" + *letter, "$options": "i"}
+	}
+	if suffix != nil && *suffix != "all" {
+		filter["suffix"] = *suffix
+	}
+	return r.col.CountDocuments(ctx, filter)
+}
+
+func (r *DiscipleRepo) GetLetterCounts(ctx context.Context) ([]bson.M, error) {
+	pipeline := bson.A{
+		bson.M{"$group": bson.M{
+			"_id":   bson.M{"$toUpper": bson.M{"$substrBytes": bson.A{"$initiatedName", 0, 1}}},
+			"count": bson.M{"$sum": 1},
+		}},
+		bson.M{"$sort": bson.M{"_id": 1}},
+	}
+	cursor, err := r.col.Aggregate(ctx, pipeline)
+	if err != nil {
+		return nil, err
+	}
+	defer cursor.Close(ctx)
+	var results []bson.M
+	if err := cursor.All(ctx, &results); err != nil {
+		return nil, err
+	}
+	return results, nil
+}
+
+func (r *DiscipleRepo) GetSuffixCounts(ctx context.Context) ([]bson.M, error) {
+	pipeline := bson.A{
+		bson.M{"$group": bson.M{"_id": "$suffix", "count": bson.M{"$sum": 1}}},
+		bson.M{"$sort": bson.M{"count": -1}},
+	}
+	cursor, err := r.col.Aggregate(ctx, pipeline)
+	if err != nil {
+		return nil, err
+	}
+	defer cursor.Close(ctx)
+	var results []bson.M
+	if err := cursor.All(ctx, &results); err != nil {
+		return nil, err
+	}
+	return results, nil
+}
+
+func (r *DiscipleRepo) Search(ctx context.Context, query string, limit int) ([]DiscipleSummaryDoc, error) {
+	filter := bson.M{"initiatedName": bson.M{"$regex": query, "$options": "i"}}
+	opts := options.Find().
+		SetSort(bson.M{"initiatedName": 1}).
+		SetLimit(int64(limit)).
+		SetProjection(discipleSummaryProjection)
+
+	cursor, err := r.col.Find(ctx, filter, opts)
+	if err != nil {
+		return nil, err
+	}
+	defer cursor.Close(ctx)
+	var results []DiscipleSummaryDoc
+	if err := cursor.All(ctx, &results); err != nil {
+		return nil, err
+	}
+	return results, nil
+}