From ea1316cd6d8b71bd4e0cb93a41541828d03eefa8 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Mon, 19 Feb 2024 13:29:31 +0100
Subject: [PATCH] Show user list in admin dashboard

---
 db.go               | 19 +++++++++++++++++++
 template/index.html | 36 +++++++++++++++++++++++++++++++-----
 user.go             | 15 +++++++++++++--

diff --git a/db.go b/db.go
index 277fd646cfcb8601263db4bfed9f4d60d7968865..6d7e2a447703f9c83719f9bbb6bf4971e6a735f1 100644
--- a/db.go
+++ b/db.go
@@ -89,6 +89,25 @@ 		RETURNING id
 	`, entityArgs(user)...).Scan(&user.ID)
 }
 
+func (db *DB) ListUsers(ctx context.Context) ([]User, error) {
+	rows, err := db.db.QueryContext(ctx, "SELECT * FROM User")
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var l []User
+	for rows.Next() {
+		var user User
+		if err := scan(&user, rows); err != nil {
+			return nil, err
+		}
+		l = append(l, user)
+	}
+
+	return l, rows.Close()
+}
+
 func (db *DB) FetchClient(ctx context.Context, id ID[*Client]) (*Client, error) {
 	rows, err := db.db.QueryContext(ctx, "SELECT * FROM Client WHERE id = ?", id)
 	if err != nil {
diff --git a/template/index.html b/template/index.html
index f71ba9109c942a7dcd292164e96794e1e231d196..d4c6d5daaa6f05a35fe0b850f68270cc6b2a308b 100644
--- a/template/index.html
+++ b/template/index.html
@@ -7,17 +7,18 @@
 <p>Welcome, {{ .Me.Username }}!</p>
 
 <form method="post">
-	{{ if .Me.Admin }}
-		<a href="/user/new"><button type="button">Create user</button></a>
-		<a href="/client/new"><button type="button">Register new client</button></a>
-	{{ end }}
 	<a href="/user/{{ .Me.ID }}"><button type="button">Settings</button></a>
 	<button type="submit" formaction="/logout">Logout</button>
 </form>
 
 {{ if .Me.Admin }}
+	<h2>Clients</h2>
+
 	{{ with .Clients }}
-		<p>{{ . | len }} clients registered:</p>
+		<p>
+			<a href="/client/new"><button type="button">Register new client</button></a>
+		</p>
+
 		<table>
 			<tr>
 				<th>Client ID</th>
@@ -33,6 +34,31 @@ 		</table>
 	{{ else }}
 		<p>No client registered yet.</p>
 	{{ end }}
+
+	<h2>Users</h2>
+
+	<p>
+		<a href="/user/new"><button type="button">Create user</button></a>
+	</p>
+
+	<table>
+		<tr>
+			<th>Username</th>
+			<th>Role</th>
+		</tr>
+		{{ range .Users }}
+			<tr>
+				<td><a href="/user/{{ .ID }}">{{ .Username }}</a></td>
+				<td>
+					{{ if .Admin }}
+						Administrator
+					{{ else }}
+						Regular user
+					{{ end}}
+				</td>
+			</tr>
+		{{ end }}
+	</table>
 {{ end }}
 
 </main>
diff --git a/user.go b/user.go
index 1adc8c50a82a787bbeb01c9af5110ce2d0d47111..e59dac355f0bb2fbd2fb75edae8c8c55bfae6616 100644
--- a/user.go
+++ b/user.go
@@ -32,12 +32,23 @@ 		httpError(w, err)
 		return
 	}
 
+	var users []User
+	if me.Admin {
+		users, err = db.ListUsers(ctx)
+		if err != nil {
+			httpError(w, err)
+			return
+		}
+	}
+
 	data := struct {
-		Clients []Client
 		Me      *User
+		Clients []Client
+		Users   []User
 	}{
+		Me:      me,
 		Clients: clients,
-		Me:      me,
+		Users:   users,
 	}
 	if err := tpl.ExecuteTemplate(w, "index.html", &data); err != nil {
 		panic(err)

-- 
2.48.1