From 824ba8ba0b9e93b4a71bf9e9aa31f4d22f067a7d Mon Sep 17 00:00:00 2001
From: Marc Cataford <mcat@riseup.net>
Date: Tue, 1 Oct 2024 22:56:25 -0400
Subject: [PATCH] feat: daemon command stub

---
 cli/cli.go         |  2 ++
 cli/daemon.go      | 21 +++++++++++++++++++++
 daemon/api.go      | 28 ++++++++++++++++++++++++++++
 daemon/api_test.go | 25 +++++++++++++++++++++++++
 daemon/daemon.go   | 27 +++++++++++++++++++++++++++
 5 files changed, 103 insertions(+)
 create mode 100644 cli/daemon.go
 create mode 100644 daemon/api.go
 create mode 100644 daemon/api_test.go
 create mode 100644 daemon/daemon.go

diff --git a/cli/cli.go b/cli/cli.go
index bef0816..02b39ae 100644
--- a/cli/cli.go
+++ b/cli/cli.go
@@ -20,6 +20,8 @@ func GetCli() *cobra.Command {
 		getStopCommand(),
 		// cli/build.go
 		getBuildCommand(),
+		// cli/daemon.go
+		getDaemonCommand(),
 	}
 
 	for _, command := range allCommands {
diff --git a/cli/daemon.go b/cli/daemon.go
new file mode 100644
index 0000000..7bfa5d0
--- /dev/null
+++ b/cli/daemon.go
@@ -0,0 +1,21 @@
+package cli
+
+import (
+	"github.com/spf13/cobra"
+	daemon "spud/daemon"
+)
+
+func getDaemonCommand() *cobra.Command {
+	startDaemon := &cobra.Command{
+		Use:   "daemon",
+		Short: "Starts a daemon instance.",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			d := daemon.NewDaemon("", 8000)
+
+			d.Start()
+			return nil
+		},
+	}
+
+	return startDaemon
+}
diff --git a/daemon/api.go b/daemon/api.go
new file mode 100644
index 0000000..0f594d0
--- /dev/null
+++ b/daemon/api.go
@@ -0,0 +1,28 @@
+package daemon
+
+import (
+	"net/http"
+)
+
+func GetApiRoutes() map[string]http.HandlerFunc {
+	return map[string]http.HandlerFunc{
+		"/service": ServiceList,
+	}
+}
+
+func ServiceList(w http.ResponseWriter, r *http.Request) {
+	var returnPayload []byte
+	var returnCode int
+
+	switch r.Method {
+	case "POST":
+		returnPayload = []byte("Create service: Not implemented")
+		returnCode = 501
+	default:
+		returnPayload = []byte("Not implemented")
+		returnCode = 501
+	}
+
+	w.WriteHeader(returnCode)
+	w.Write(returnPayload)
+}
diff --git a/daemon/api_test.go b/daemon/api_test.go
new file mode 100644
index 0000000..62e54d4
--- /dev/null
+++ b/daemon/api_test.go
@@ -0,0 +1,25 @@
+package daemon
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func TestServiceListUnsupportedMethods(t *testing.T) {
+	for _, method := range []string{http.MethodGet, http.MethodPut, http.MethodHead} {
+		t.Run(method, func(t *testing.T) {
+			req := httptest.NewRequest(method, "/service", nil)
+			resp := httptest.NewRecorder()
+
+			ServiceList(resp, req)
+
+			response := resp.Result()
+
+			if response.StatusCode != 501 {
+				t.Errorf("Expected status 501, got %d.", response.StatusCode)
+			}
+		})
+	}
+
+}
diff --git a/daemon/daemon.go b/daemon/daemon.go
new file mode 100644
index 0000000..1c36579
--- /dev/null
+++ b/daemon/daemon.go
@@ -0,0 +1,27 @@
+package daemon
+
+import (
+	"fmt"
+	"net/http"
+)
+
+type Daemon struct {
+	Host string
+	Port int
+}
+
+func NewDaemon(host string, port int) *Daemon {
+	return &Daemon{Host: host, Port: port}
+}
+
+func (d Daemon) GetListenAddress() string {
+	return fmt.Sprintf("%s:%d", d.Host, d.Port)
+}
+
+func (d Daemon) Start() {
+	for route, handler := range GetApiRoutes() {
+		http.HandleFunc(route, handler)
+	}
+
+	http.ListenAndServe(d.GetListenAddress(), nil)
+}