package app

import (
	"net/http"
	"strings"
	"time"
)

func handleTransportSingBoxFeatures(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
		return
	}

	bin := ""
	for _, cand := range []string{"/usr/local/bin/sing-box", "/usr/bin/sing-box", "sing-box"} {
		if p, ok := findBinaryPath(cand); ok {
			bin = p
			break
		}
	}
	version := ""
	if bin != "" {
		stdout, _, code, _ := runCommandTimeout(2*time.Second, bin, "version")
		if code == 0 {
			for _, line := range strings.Split(stdout, "\n") {
				line = strings.TrimSpace(line)
				if line == "" {
					continue
				}
				version = line
				break
			}
		}
	}

	writeJSON(w, http.StatusOK, SingBoxFeaturesResponse{
		OK:      true,
		Message: "ok",
		Binary:  bin,
		Version: version,
		ProfileModes: map[string]bool{
			string(SingBoxProfileModeTyped): true,
			string(SingBoxProfileModeRaw):   true,
		},
		TypedProtocols: []string{"vless", "trojan", "shadowsocks", "wireguard", "hysteria2", "tuic"},
		DNSFormats: map[string]bool{
			"typed_servers":      true,
			"typed_rules":        true,
			"legacy_migration":   true,
			"system_resolver":    true,
			"rule_based_routing": true,
		},
		ErrorCodes: []string{
			singBoxProfileCodeNotFound,
			singBoxProfileCodeIDConflict,
			singBoxProfileCodeBadID,
			singBoxProfileCodeBadMode,
			singBoxProfileCodeBadBaseRevision,
			singBoxProfileCodeRevisionMismatch,
			singBoxProfileCodeSaveFailed,
			singBoxProfileCodeSecretsFailed,
			singBoxProfileCodeValidationFailed,
			singBoxProfileCodeRenderFailed,
			singBoxProfileCodeApplyFailed,
			singBoxProfileCodeRollbackFailed,
			singBoxProfileCodeHistoryMissing,
			singBoxProfileCodeNoClient,
			singBoxProfileCodeClientKind,
			singBoxProfileCodeRuntimeFailed,
		},
	})

}