First Commit

internal/config/config.go

@@ -0,0 +1,53 @@
+package config
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"sync"
+)
+
+// Config represents the logbot's configuration.
+type Config struct {
+	Bot struct {
+		Nicks          []string `json:"nicks"`
+		Server         string   `json:"server"`
+		CommandChannel string   `json:"commandChannel"`
+	} `json:"bot"`
+	API struct {
+		Endpoint string `json:"endpoint"`
+		Username string `json:"username"`
+		Key      struct {
+			ID     string `json:"id"`
+			Secret string `json:"secret"`
+		} `json:"key"`
+	} `json:"api"`
+}
+
+var mutex sync.Mutex
+var config *Config
+
+// Get lazy-loads the configuration in a thread-safe manner.
+func Get() Config {
+	mutex.Lock()
+	defer mutex.Unlock()
+
+	if config == nil {
+		config = &Config{}
+
+		file, err := os.Open("/etc/aiterp/logbot3.json")
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Failed to load config: %s\n", err)
+			os.Exit(1)
+		}
+		defer file.Close()
+
+		err = json.NewDecoder(file).Decode(&config)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Failed to parse config: %s\n", err)
+			os.Exit(1)
+		}
+	}
+
+	return *config
+}