refactoring. remove global state, use new logging, config functions

webcontroller/templates/manager.go

@@ -0,0 +1,61 @@
+package templates
+
+import (
+	"html/template"
+	"os"
+	"path/filepath"
+
+	"github.com/Fornaxian/log"
+)
+
+type TemplateManager struct {
+	templates *template.Template
+
+	// Config
+	templateDir         string
+	externalAPIEndpoint string
+	debugModeEnabled    bool
+}
+
+func New(templateDir, externalAPIEndpoint string, debugMode bool) *TemplateManager {
+	return &TemplateManager{
+		templateDir:         templateDir,
+		externalAPIEndpoint: externalAPIEndpoint,
+		debugModeEnabled:    debugMode,
+	}
+}
+
+// ParseTemplates parses the templates in the template directory which is
+// defined in the config file
+func (tm *TemplateManager) ParseTemplates() {
+	var templatePaths []string
+
+	filepath.Walk(tm.templateDir, func(path string, f os.FileInfo, err error) error {
+		if f.IsDir() {
+			return nil
+		}
+		templatePaths = append(templatePaths, path)
+		log.Info("Template found: %s", path)
+		return nil
+	})
+
+	tpl := template.New("")
+
+	// Import template functions from funcs.go
+	tpl = tpl.Funcs(tm.funcMap())
+
+	var err error
+	tpl, err = tpl.ParseFiles(templatePaths...)
+	if err != nil {
+		log.Error("Template parsing failed: %v", err)
+	}
+
+	// Swap out the old templates with the new templates, to minimize
+	// modifications to the original variable.
+	tm.templates = tpl
+}
+
+// Get returns the templates, so they can be used to render views
+func (tm *TemplateManager) Get() *template.Template {
+	return tm.templates
+}