refactoring everything teehee (i'm so glad this isn't a team project)

Signed-off-by: ari melody <ari@arimelody.me>

global/global.go

@@ -3,6 +3,9 @@ package global
 import (
 	"fmt"
 	"net/http"
+	"os"
+	"path/filepath"
+	"html/template"
 	"strconv"
 	"time"
 )
@@ -19,20 +22,11 @@ var MimeTypes = map[string]string{
         "js":   "application/javascript",
 }
 
-var LAST_MODIFIED = time.Now()
-
-func IsModified(req *http.Request, last_modified time.Time) bool {
-    if len(req.Header["If-Modified-Since"]) == 0 || len(req.Header["If-Modified-Since"][0]) == 0 {
-        return true
-    }
-    request_time, err := time.Parse(http.TimeFormat, req.Header["If-Modified-Since"][0])
-    if err != nil {
-        return true
-    }
-    if request_time.Before(last_modified) {
-        return true
-    }
-    return false
+func DefaultHeaders(next http.Handler) http.Handler {
+    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+        w.Header().Add("Server", "arimelody.me")
+        w.Header().Add("Cache-Control", "max-age=2592000")
+    })
 }
 
 type LoggingResponseWriter struct {
@@ -69,3 +63,40 @@ func HTTPLog(next http.Handler) http.Handler {
         r.Header["User-Agent"][0])
     })
 }
+
+func ServeTemplate(page string, data any) http.Handler {
+    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+        lp_layout :=    filepath.Join("views", "layout.html")
+        lp_header :=    filepath.Join("views", "header.html")
+        lp_footer :=    filepath.Join("views", "footer.html")
+        lp_prideflag := filepath.Join("views", "prideflag.html")
+        fp :=           filepath.Join("views", filepath.Clean(page))
+
+        info, err := os.Stat(fp)
+        if err != nil {
+            if os.IsNotExist(err) {
+                http.NotFound(w, r)
+                return
+            }
+        }
+
+        if info.IsDir() {
+            http.NotFound(w, r)
+            return
+        }
+
+        template, err := template.ParseFiles(lp_layout, lp_header, lp_footer, lp_prideflag, fp)
+        if err != nil {
+            fmt.Printf("Error parsing template files: %s\n", err)
+            http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+            return
+        }
+
+        err = template.ExecuteTemplate(w, "layout.html", data)
+        if err != nil {
+            fmt.Printf("Error executing template: %s\n", err)
+            http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+            return
+        }
+    })
+}