MM-25478: Migrate compliancestore to plain error (#15074)

* ComplianceStore migration

* Fix imports

* Added one string

* fix go.tools.mod

Co-authored-by: Rodrigo Villablanca <villa061004@gmail.com>
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

app/compliance.go

@@ -4,11 +4,12 @@
 package app
 
 import (
+	"errors"
 	"io/ioutil"
-
 	"net/http"
 
 	"github.com/mattermost/mattermost-server/v5/model"
+	"github.com/mattermost/mattermost-server/v5/store"
 )
 
 func (a *App) GetComplianceReports(page, perPage int) (model.Compliances, *model.AppError) {
@@ -16,7 +17,12 @@ func (a *App) GetComplianceReports(page, perPage int) (model.Compliances, *model
 		return nil, model.NewAppError("GetComplianceReports", "ent.compliance.licence_disable.app_error", nil, "", http.StatusNotImplemented)
 	}
 
-	return a.Srv().Store.Compliance().GetAll(page*perPage, perPage)
+	compliances, err := a.Srv().Store.Compliance().GetAll(page*perPage, perPage)
+	if err != nil {
+		return nil, model.NewAppError("GetComplianceReports", "app.compliance.get.finding.app_error", nil, err.Error(), http.StatusInternalServerError)
+	}
+
+	return compliances, nil
 }
 
 func (a *App) SaveComplianceReport(job *model.Compliance) (*model.Compliance, *model.AppError) {
@@ -28,7 +34,13 @@ func (a *App) SaveComplianceReport(job *model.Compliance) (*model.Compliance, *m
 
 	job, err := a.Srv().Store.Compliance().Save(job)
 	if err != nil {
-		return nil, err
+		var appErr *model.AppError
+		switch {
+		case errors.As(err, &appErr):
+			return nil, appErr
+		default:
+			return nil, model.NewAppError("SaveComplianceReport", "app.compliance.save.saving.app_error", nil, err.Error(), http.StatusInternalServerError)
+		}
 	}
 
 	a.Srv().Go(func() {
@@ -43,7 +55,18 @@ func (a *App) GetComplianceReport(reportId string) (*model.Compliance, *model.Ap
 		return nil, model.NewAppError("downloadComplianceReport", "ent.compliance.licence_disable.app_error", nil, "", http.StatusNotImplemented)
 	}
 
-	return a.Srv().Store.Compliance().Get(reportId)
+	compliance, err := a.Srv().Store.Compliance().Get(reportId)
+	if err != nil {
+		var nfErr *store.ErrNotFound
+		switch {
+		case errors.As(err, &nfErr):
+			return nil, model.NewAppError("GetComplicanceReport", "app.compliance.get.finding.app_error", nil, nfErr.Error(), http.StatusNotFound)
+		default:
+			return nil, model.NewAppError("GetComplianceReport", "app.compliance.get.finding.app_error", nil, err.Error(), http.StatusInternalServerError)
+		}
+	}
+
+	return compliance, nil
 }
 
 func (a *App) GetComplianceFile(job *model.Compliance) ([]byte, *model.AppError) {