package app

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

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

	limit := 50
	if s := strings.TrimSpace(r.URL.Query().Get("limit")); s != "" {
		if n, err := strconv.Atoi(s); err == nil && n > 0 {
			if n > 500 {
				n = 500
			}
			limit = n
		}
	}

	records, err := loadSingBoxHistoryRecords(id, limit)
	if err != nil {
		writeJSON(w, http.StatusInternalServerError, SingBoxProfileHistoryResponse{
			OK:        false,
			Code:      singBoxProfileCodeRollbackFailed,
			Message:   "history read failed: " + err.Error(),
			ProfileID: id,
		})
		return
	}
	items := make([]SingBoxProfileHistoryEntry, 0, len(records))
	for _, it := range records {
		items = append(items, it.Public())
	}
	writeJSON(w, http.StatusOK, SingBoxProfileHistoryResponse{
		OK:        true,
		Message:   "ok",
		ProfileID: id,
		Count:     len(items),
		Items:     items,
	})
}