From 3ad3666002cb5d29dd184f2a7c8a6646bba13291 Mon Sep 17 00:00:00 2001
From: Maximilian Friedersdorff <max@gwairfelin.com>
Date: Tue, 4 Feb 2025 20:27:32 +0000
Subject: [PATCH] Download templates on boot

---
 README.md                |  3 ---
 cmd/server/main.go       |  4 +++-
 conf.toml                |  6 +++++
 internal/conf/conf.go    | 48 ++++++++++++++++++++++++++++++++++++++--
 static/.gitignore        |  1 -
 templates/base.tmpl.html |  2 +-
 templates/edit.tmpl.html |  6 ++---
 7 files changed, 59 insertions(+), 11 deletions(-)
 delete mode 100644 static/.gitignore

diff --git a/README.md b/README.md
index 5e58c99..95f0d78 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,4 @@ It's not shared in the sense of simultaneous editing, don't do that!
 ## TODO
 
 * handle static urls in the django url mapping style
-* Write a delete view
 * Style up the templates better
-* Serve frontend dependencies from /static/
-* Populate frontend dependencies automagically?
diff --git a/cmd/server/main.go b/cmd/server/main.go
index df4c7ba..c17d08b 100644
--- a/cmd/server/main.go
+++ b/cmd/server/main.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"fmt"
 	"log"
 	"net/http"
 
@@ -24,7 +25,8 @@ func main() {
 			),
 		),
 	)
-	log.Fatal(http.ListenAndServe(":8080", router))
+	addr := fmt.Sprintf(":%d", conf.Conf.Port)
+	log.Fatal(http.ListenAndServe(addr, router))
 }
 
 func logger(next http.Handler) http.Handler {
diff --git a/conf.toml b/conf.toml
index e92dae1..913dfa3 100644
--- a/conf.toml
+++ b/conf.toml
@@ -1,5 +1,6 @@
 extension = "md"
 notesdir = "saved_notes"
+port = 8080
 
 [templates]
 dir = "templates"
@@ -8,3 +9,8 @@ base = "base.tmpl.html"
 [static]
 dir = "/home/max/src/gonotes/static"
 root = "/static/"
+assets = [
+    { path = "css/bootstrap.min.css", url = "https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" },
+    { path = "css/tiny-mde.min.css", url = "https://unpkg.com/tiny-markdown-editor/dist/tiny-mde.min.css" },
+    { path = "js/tiny-mde.min.js", url = "https://unpkg.com/tiny-markdown-editor/dist/tiny-mde.min.js" },
+]
diff --git a/internal/conf/conf.go b/internal/conf/conf.go
index 1cbe524..0fb8c60 100644
--- a/internal/conf/conf.go
+++ b/internal/conf/conf.go
@@ -1,13 +1,52 @@
 package conf
 
 import (
+	"errors"
+	"io"
 	"log"
+	"net/http"
 	"os"
+	"path/filepath"
 
 	"github.com/pelletier/go-toml/v2"
 )
 
+type Asset struct {
+	Path string
+	Url  string
+}
+
+func (asset *Asset) FetchIfNotExists(staticPath string) {
+	destPath := filepath.Join(staticPath, asset.Path)
+
+	out, err := os.OpenFile(
+		destPath,
+		os.O_WRONLY|os.O_CREATE|os.O_EXCL,
+		0666,
+	)
+	if err != nil {
+		if errors.Is(err, os.ErrExist) {
+			log.Printf("%s already exists\n", destPath)
+			return
+		}
+		panic(err)
+	}
+	defer out.Close()
+
+	resp, err := http.Get(asset.Url)
+	if err != nil {
+		panic(err)
+	}
+	defer resp.Body.Close()
+
+	_, err = io.Copy(out, resp.Body)
+	if err != nil {
+		panic(err)
+	}
+}
+
 type Config struct {
+	Port      int
 	Extension string
 	NotesDir  string
 	Templates struct {
@@ -15,8 +54,9 @@ type Config struct {
 		Base string
 	}
 	Static struct {
-		Dir  string
-		Root string
+		Dir    string
+		Root   string
+		Assets []Asset
 	}
 }
 
@@ -34,4 +74,8 @@ func LoadConfig(path string) {
 	if err != nil {
 		log.Fatal(err)
 	}
+
+	for _, asset := range Conf.Static.Assets {
+		asset.FetchIfNotExists(Conf.Static.Dir)
+	}
 }
diff --git a/static/.gitignore b/static/.gitignore
deleted file mode 100644
index 72e8ffc..0000000
--- a/static/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-*
diff --git a/templates/base.tmpl.html b/templates/base.tmpl.html
index 901a96d..479636a 100644
--- a/templates/base.tmpl.html
+++ b/templates/base.tmpl.html
@@ -5,7 +5,7 @@
         <meta charset="utf-8">
         <meta name="viewport" content="width=device-width, initial-scale=1">
         <title>{{template "title" .}}</title>
-        <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css"
+        <link href="/static/css/bootstrap.min.css"
             rel="stylesheet"
             integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH"
             crossorigin="anonymous">
diff --git a/templates/edit.tmpl.html b/templates/edit.tmpl.html
index 27b7b17..ae5033b 100644
--- a/templates/edit.tmpl.html
+++ b/templates/edit.tmpl.html
@@ -1,7 +1,7 @@
 {{define "title"}}Edit {{.note.Title}}{{end}}
 
 {{define "main"}}
-<form action="{{.urlEdit}}" method="POST">
+<form action="{{.urlSave}}" method="POST">
     <div class="mb-3">
         <label for="noteBodyInput" class="form-label">Note</label>
         <div class="border rounded rounded-1">
@@ -13,11 +13,11 @@
     <button class="btn btn-primary" type="submit">Save</button>
 </form>
 
-<script src="https://unpkg.com/tiny-markdown-editor/dist/tiny-mde.min.js"></script>
+<script src="/static/js/tiny-mde.min.js"></script>
 <link
   rel="stylesheet"
   type="text/css"
-  href="https://unpkg.com/tiny-markdown-editor/dist/tiny-mde.min.css"
+  href="/static/css/tiny-mde.min.css"
 />
 <script type="text/javascript">
 var tinyMDE = new TinyMDE.Editor({ textarea: "noteBodyInput" });