From c29a6832be5d3f345e66ed75a9a0f913eab4842d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timoth=C3=A9e=20Floure?= <timothee.floure@posteo.net>
Date: Mon, 6 Apr 2020 18:12:43 +0200
Subject: [PATCH] Initial project structure, HTTP server

---
 .gitignore |  1 +
 Makefile   | 12 ++++++++++++
 README.md  |  5 +++++
 main.go    | 35 +++++++++++++++++++++++++++++++++++
 4 files changed, 53 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 README.md
 create mode 100644 main.go

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7a3c303
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+matrix-alertmanager-receiver
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..03b7e9f
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,12 @@
+NAME=matrix-alertmanager-receiver
+
+all: build
+
+getDeps:
+	go get -v
+
+build:
+	go build
+
+clean:
+	rm $(NAME)
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..ef0579d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,5 @@
+# matrix-alertmanager-receiver
+
+TODO: synopsis, existing matrix-alermanager
+
+See `matrix-alermanager-receiver.scd` for usage.
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..12aade8
--- /dev/null
+++ b/main.go
@@ -0,0 +1,35 @@
+package main
+
+import (
+	"os"
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+)
+
+func main() {
+	// Initialize logger.
+	var logger *log.Logger = log.New(os.Stdout, "", log.Flags())
+
+	// Handle command-line arguments.
+	var port = flag.Int("port", 9088, "HTTP port to listen on (incoming alertmanager webhooks)")
+	flag.Parse()
+
+	// Initialize Matrix client.
+	// TODO
+
+	// Initialize HTTP serve (= listen for incoming requests).
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintf(w, `Hi! I receive prometheus-alertmanager webhooks on /alert and forward them to Matrix.
+
+You will find more details on: http://git.sr.ht/~fnux/matrix-prometheus-alertmanager`)
+	})
+
+	http.HandleFunc("/alert", func(w http.ResponseWriter, r *http.Request) {
+	})
+
+	var listenAddr = fmt.Sprintf(":%v", *port)
+	logger.Printf("Listening for HTTP requests (webhooks) on %v", listenAddr)
+	log.Fatal(http.ListenAndServe(listenAddr, nil))
+}