Can now convert csv to proto + open proto file + filter

app.go

@@ -3,11 +3,16 @@ package main
 import (
 	"context"
 	"fmt"
+	"os"
+
+	"git.cems.dev/cdricms/bdooc/proto"
+	"github.com/wailsapp/wails/v2/pkg/runtime"
 )
 
 // App struct
 type App struct {
-	ctx context.Context
+	ctx       context.Context
+	employees *proto.EmployeeList // Caching purposes
 }
 
 // NewApp creates a new App application struct
@@ -21,7 +26,60 @@ func (a *App) startup(ctx context.Context) {
 	a.ctx = ctx
 }
 
-// Greet returns a greeting for the given name
-func (a *App) Greet(name string) string {
-	return fmt.Sprintf("Hello %s, It's show time!", name)
+func (a *App) GetEmployees(path string, limit, page uint, column, query *string) ([]*proto.Employee, error) {
+	if a.employees == nil {
+		e, err := proto.LoadFromFile(path)
+		if err != nil {
+			return nil, err
+		}
+		a.employees = e
+	}
+
+	if column != nil && query != nil {
+		e, err := a.employees.QueryEmployeesByColumn(proto.EmployeeField(proto.SnakeCaseToPascalCase(*column)), *query)
+		if err != nil {
+			return nil, err
+		}
+		if uint(len(e)) < page*limit+limit {
+			return e[page*limit:], nil
+		}
+		return e[page*limit : page*limit+limit], nil
+	}
+
+	if uint(len(a.employees.Employees)) < page*limit+limit {
+		return a.employees.Employees[page*limit:], nil
+	}
+	return a.employees.Employees[page*limit : page*limit+limit], nil
+}
+
+func (a *App) SaveData(data []uint8, filename string) {
+	err := proto.SaveToFile(data, filename)
+	if err != nil {
+		panic(err)
+	}
+}
+
+func (a *App) GetProtoPath() string {
+	return a.OpenPath([]runtime.FileFilter{{
+		DisplayName: "Proto binary file",
+		Pattern:     "*.bin",
+	}})
+}
+
+func (a *App) OpenPath(filters []runtime.FileFilter) string {
+	path, err := runtime.OpenFileDialog(a.ctx, runtime.OpenDialogOptions{
+		Filters: filters,
+	})
+
+	if err != nil {
+		panic(err)
+	}
+
+	return path
+}
+
+func (a *App) IsPathValid(path string) bool {
+	_, err := os.Stat(path)
+	fmt.Println(path)
+	return !os.IsNotExist(err)
 }