Started work on remove feature

internal/app/collection_remove.go

@@ -0,0 +1,69 @@
+package app
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	"github.com/wailsapp/wails/v2/pkg/runtime"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+)
+
+func (a *App) RemoveItems(hostKey, dbKey, collKey, jsonData string, many bool) int64 {
+	var filter bson.M
+	var err error
+	jsonData = strings.TrimSpace(jsonData)
+
+	if len(jsonData) == 0 {
+		sure, _ := runtime.MessageDialog(a.ctx, runtime.MessageDialogOptions{
+			Title:         "Confirm",
+			Message:       "Are you sure you want to drop all items in " + collKey + "?",
+			Buttons:       []string{"Yes", "No"},
+			DefaultButton: "Yes",
+			CancelButton:  "No",
+		})
+		if sure != "Yes" {
+			return 0
+		}
+	} else {
+		err = json.Unmarshal([]byte(jsonData), &filter)
+		if err != nil {
+			fmt.Println(err.Error())
+			runtime.MessageDialog(a.ctx, runtime.MessageDialogOptions{
+				Type:    runtime.ErrorDialog,
+				Title:   "Couldn't parse JSON",
+				Message: err.Error(),
+			})
+			return 0
+		}
+	}
+
+	client, ctx, close, err := a.connectToHost(hostKey)
+	if err != nil {
+		fmt.Println(err.Error())
+		return 0
+	}
+
+	defer close()
+
+	var res *mongo.DeleteResult
+
+	if many {
+		res, err = client.Database(dbKey).Collection(collKey).DeleteMany(ctx, filter)
+	} else {
+		res, err = client.Database(dbKey).Collection(collKey).DeleteOne(ctx, filter)
+	}
+
+	if err != nil {
+		fmt.Println(err.Error())
+		runtime.MessageDialog(a.ctx, runtime.MessageDialogOptions{
+			Type:    runtime.ErrorDialog,
+			Title:   "Encountered an error while performing query",
+			Message: err.Error(),
+		})
+		return 0
+	}
+
+	return res.DeletedCount
+}