updated to use bun and updated hws modules.

internal/config/envprint.go

@@ -0,0 +1,87 @@
+package config
+
+import (
+	"fmt"
+	"io"
+	"strings"
+)
+
+// PrintEnvVars writes all environment variables and their documentation to the provided writer
+func PrintEnvVars(w io.Writer) error {
+	envVars := GetAllEnvVars()
+	
+	// Find the longest name for alignment
+	maxNameLen := 0
+	for _, ev := range envVars {
+		if len(ev.Name) > maxNameLen {
+			maxNameLen = len(ev.Name)
+		}
+	}
+	
+	// Print header
+	fmt.Fprintln(w, "Environment Variables")
+	fmt.Fprintln(w, strings.Repeat("=", 80))
+	fmt.Fprintln(w)
+	
+	// Group by prefix
+	groups := map[string][]EnvVar{
+		"DB_":      {},
+		"HWS_":     {},
+		"HWSAUTH_": {},
+		"TMDB_":    {},
+		"LOG_":     {},
+	}
+	
+	for _, ev := range envVars {
+		assigned := false
+		for prefix := range groups {
+			if strings.HasPrefix(ev.Name, prefix) {
+				groups[prefix] = append(groups[prefix], ev)
+				assigned = true
+				break
+			}
+		}
+		if !assigned {
+			// Handle ungrouped vars
+			if _, ok := groups["OTHER"]; !ok {
+				groups["OTHER"] = []EnvVar{}
+			}
+			groups["OTHER"] = append(groups["OTHER"], ev)
+		}
+	}
+	
+	// Print each group
+	groupOrder := []string{"DB_", "HWS_", "HWSAUTH_", "TMDB_", "LOG_", "OTHER"}
+	groupTitles := map[string]string{
+		"DB_":      "Database Configuration",
+		"HWS_":     "HTTP Web Server Configuration",
+		"HWSAUTH_": "Authentication Configuration",
+		"TMDB_":    "TMDB API Configuration",
+		"LOG_":     "Logging Configuration",
+		"OTHER":    "Other Configuration",
+	}
+	
+	for _, prefix := range groupOrder {
+		vars, ok := groups[prefix]
+		if !ok || len(vars) == 0 {
+			continue
+		}
+		
+		fmt.Fprintf(w, "%s\n", groupTitles[prefix])
+		fmt.Fprintln(w, strings.Repeat("-", len(groupTitles[prefix])))
+		
+		for _, ev := range vars {
+			padding := strings.Repeat(" ", maxNameLen-len(ev.Name))
+			if ev.Required {
+				fmt.Fprintf(w, "  %s%s : %s (required)\n", ev.Name, padding, ev.Description)
+			} else if ev.HasDefault {
+				fmt.Fprintf(w, "  %s%s : %s (default: %s)\n", ev.Name, padding, ev.Description, ev.Default)
+			} else {
+				fmt.Fprintf(w, "  %s%s : %s\n", ev.Name, padding, ev.Description)
+			}
+		}
+		fmt.Fprintln(w)
+	}
+	
+	return nil
+}