package rechargeagency

import (
	"strconv"
	"strings"
)

func normalizeSysOrigin(value string) string {
	return strings.ToUpper(strings.TrimSpace(value))
}

func normalizePage(cursor int, limit int) (int, int) {
	if cursor <= 0 {
		cursor = 1
	}
	if limit <= 0 {
		limit = 20
	}
	if limit > 100 {
		limit = 100
	}
	return cursor, limit
}

func normalizeDecimalString(value string) string {
	normalized := strings.TrimSpace(value)
	if normalized == "" {
		return "0"
	}
	return normalized
}

func normalizeFlags(flags []string) []string {
	if len(flags) == 0 {
		return []string{}
	}
	result := make([]string, 0, len(flags))
	for _, flag := range flags {
		if normalized := strings.TrimSpace(flag); normalized != "" {
			result = append(result, normalized)
		}
	}
	return result
}

func firstNonBlank(values ...string) string {
	for _, value := range values {
		if normalized := strings.TrimSpace(value); normalized != "" {
			return normalized
		}
	}
	return ""
}

func formatInt64(value int64) string {
	if value <= 0 {
		return ""
	}
	return strconv.FormatInt(value, 10)
}