Core implementation written with Junie.

cmd/mcias/database.go

@@ -0,0 +1,110 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+var (
+	dbUsername string
+	dbToken    string
+)
+
+type DatabaseCredentials struct {
+	Host     string `json:"host"`
+	Port     int    `json:"port"`
+	Name     string `json:"name"`
+	User     string `json:"user"`
+	Password string `json:"password"`
+}
+
+type ErrorResponse struct {
+	Error string `json:"error"`
+}
+
+var databaseCmd = &cobra.Command{
+	Use:   "database",
+	Short: "Manage database credentials",
+	Long:  `Commands for managing database credentials in the MCIAS system.`,
+}
+
+var getCredentialsCmd = &cobra.Command{
+	Use:   "credentials",
+	Short: "Get database credentials",
+	Long: `Retrieve database credentials from the MCIAS system.
+This command requires authentication with a username and token.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		getCredentials()
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(databaseCmd)
+	databaseCmd.AddCommand(getCredentialsCmd)
+
+	getCredentialsCmd.Flags().StringVarP(&dbUsername, "username", "u", "", "Username for authentication")
+	getCredentialsCmd.Flags().StringVarP(&dbToken, "token", "t", "", "Authentication token")
+	if err := getCredentialsCmd.MarkFlagRequired("username"); err != nil {
+		fmt.Fprintf(os.Stderr, "Error marking username flag as required: %v\n", err)
+	}
+	if err := getCredentialsCmd.MarkFlagRequired("token"); err != nil {
+		fmt.Fprintf(os.Stderr, "Error marking token flag as required: %v\n", err)
+	}
+}
+
+func getCredentials() {
+	logger := log.New(os.Stdout, "MCIAS: ", log.LstdFlags)
+
+	serverAddr := viper.GetString("server")
+	if serverAddr == "" {
+		serverAddr = "http://localhost:8080"
+	}
+
+	url := fmt.Sprintf("%s/v1/database/credentials?username=%s", serverAddr, dbUsername)
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		logger.Fatalf("Failed to create request: %v", err)
+	}
+
+	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", dbToken))
+
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		logger.Fatalf("Failed to send request: %v", err)
+	}
+	defer resp.Body.Close()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		logger.Fatalf("Failed to read response: %v", err)
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		var errResp ErrorResponse
+		if err := json.Unmarshal(body, &errResp); err == nil {
+			logger.Fatalf("Error: %s", errResp.Error)
+		} else {
+			logger.Fatalf("Error: %s", resp.Status)
+		}
+	}
+
+	var creds DatabaseCredentials
+	if err := json.Unmarshal(body, &creds); err != nil {
+		logger.Fatalf("Failed to parse response: %v", err)
+	}
+
+	fmt.Println("Database Credentials:")
+	fmt.Printf("Host:     %s\n", creds.Host)
+	fmt.Printf("Port:     %d\n", creds.Port)
+	fmt.Printf("Name:     %s\n", creds.Name)
+	fmt.Printf("User:     %s\n", creds.User)
+	fmt.Printf("Password: %s\n", creds.Password)
+}