Switch to zig package manager instead of using submodules

Add smtp library
Send a notification on comment.

6 files changed, 53 insertions, 5 deletions

diff --git a/comments/build.zig b/comments/build.zig
index b7f3bcc..a678527 100644
--- a/comments/build.zig
+++ b/comments/build.zig
@@ -15,6 +15,8 @@ pub fn build(b: *std.Build) void {
     // set a preferred release mode, allowing the user to decide how to optimize.
     const optimize = b.standardOptimizeOption(.{});
 
+    const opts = .{ .target = target, .optimize = optimize };
+
     const exe = b.addExecutable(.{
         .name = "comments",
         // In this case the main source file is merely a path, however, in more
@@ -24,15 +26,21 @@ pub fn build(b: *std.Build) void {
         .optimize = optimize,
     });
 
-    const zws = b.addModule("zws", .{ .source_file = .{ .path = "lib/zigwebserver/src/zigwebserver.zig" } });
-    exe.addModule("zws", zws);
+    const zws = b.dependency("zigwebserver", opts);
+    exe.addModule("zws", zws.module("zigwebserver"));
+    exe.linkLibrary(zws.artifact("zigwebserver"));
 
     exe.linkLibC();
     exe.linkSystemLibrary("libpq");
     exe.addIncludePath(.{ .path = "/usr/include" });
 
-    const mustache = b.addModule("mustache", .{ .source_file = .{ .path = "lib/mustache-zig/src/mustache.zig" } });
-    exe.addModule("mustache", mustache);
+    const mustache = b.dependency("mustache", opts);
+    exe.addModule("mustache", mustache.module("mustache"));
+    exe.linkLibrary(mustache.artifact("mustache-static"));
+
+    const smtp = b.dependency("smtp", opts);
+    exe.addModule("smtp", smtp.module("smtp"));
+    exe.linkLibrary(smtp.artifact("smtp"));
 
     // This declares intent for the executable to be installed into the
     // standard location when the user invokes the "install" step (the default
@@ -69,7 +77,7 @@ pub fn build(b: *std.Build) void {
         .target = target,
         .optimize = optimize,
     });
-    unit_tests.addModule("mustache", mustache);
+    unit_tests.addModule("mustache", mustache.module("mustache"));
 
     const run_unit_tests = b.addRunArtifact(unit_tests);
 
diff --git a/comments/build.zig.zon b/comments/build.zig.zon
new file mode 100644
index 0000000..2acd629
--- /dev/null
+++ b/comments/build.zig.zon
@@ -0,0 +1,18 @@
+.{
+    .name = "comments",
+    .version = "0.0.1",
+    .dependencies = .{
+        .smtp = .{
+            .url = "https://code.mfashby.net/smtp-zig/snapshot/smtp-zig-main.tar.xz",
+            .hash = "12205e7087360185eea859ae9265cc4be54c519d5f8d205f66f655d4f8e7e0045dc1",
+        },
+        .mustache = .{
+            .url = "https://github.com/MFAshby/mustache-zig/archive/refs/heads/stage3.tar.gz",
+            .hash = "1220fdf239b6ece687324bb600c72d5ad7a278df2ece86599aee6adf932064686cef",
+        },
+        .zigwebserver = .{
+            .url = "https://code.mfashby.net/zigwebserver/snapshot/zigwebserver-main.tar.xz",
+            .hash = "122066ea438ccbe3e006e84563746705cd46f3c7d1389c8fa8cccf2cdf681959495e",
+        }
+    }
+}
\ No newline at end of file
diff --git a/comments/lib/mustache-zig b/comments/lib/mustache-zig
deleted file mode 160000
-Subproject da5aabb77b8ae6669b0436f09c3305c8f227caa
diff --git a/comments/lib/zigwebserver b/comments/lib/zigwebserver
deleted file mode 160000
-Subproject 0736c8a26dbd970670117290baf4a68e430aeca
diff --git a/comments/src/main.zig b/comments/src/main.zig
index 898b689..882202d 100644
--- a/comments/src/main.zig
+++ b/comments/src/main.zig
@@ -2,6 +2,7 @@ const std = @import("std");
 const zws = @import("zws");
 const pq = @import("pq.zig");
 const mustache = @import("mustache");
+const smtp = @import("smtp");
 
 const Params = zws.Params;
 
@@ -244,6 +245,23 @@ fn post_comment(res: *Response, ctx: Ctx, _: Params) Err!void {
         _ = try stmt.step();
     }
 
+    // Send me an email
+    const rr = @embedFile("templates/notification.txt");
+    const tt = comptime mustache.parseComptime(rr, .{}, .{});
+    const Data = struct { url: []const u8, author: []const u8, comment: []const u8 };
+    const notification = try mustache.allocRender(res.allocator, tt, Data{
+        .url = form_val.url,
+        .author = form_val.author,
+        .comment = form_val.comment,
+    });
+    const smtp_username = std.os.getenv("SMTP_USERNAME") orelse "comments@mfashby.net";
+    const smtp_password = std.os.getenv("SMTP_PASSWORD") orelse "foobar";
+    const notification_address = std.os.getenv("NOTIFICATION_ADDRESS") orelse "martin@mfashby.net";
+    const smtp_server = std.os.getenv("SMTP_SERVER") orelse "mail.mfashby.net:587";
+    smtp.send_mail(res.allocator, smtp_server, .{ .user = smtp_username, .pass = smtp_password }, smtp_username, &[_][]const u8{notification_address}, notification) catch |err| {
+        std.log.err("failed to send notification email {}", .{err});
+    };
+
     // And redirect!
     res.transfer_encoding = .none;
     res.status = .found;
diff --git a/comments/src/templates/notification.txt b/comments/src/templates/notification.txt
index ba85056..3824f52 100644
--- a/comments/src/templates/notification.txt
+++ b/comments/src/templates/notification.txt
@@ -1,3 +1,7 @@
+subject: New comment on {{ url }}
+from: comments@mfashby.net
+to: martin@mfashby.net
+
 New comment on {{ url }}:
 
 Author: {{ author }}