♻️ Refactor code

🔥 Remove update detection

common/rule.go

@@ -0,0 +1,50 @@
+package common
+
+import (
+	"fmt"
+	"strings"
+	"sub2clash/model"
+)
+
+func PrependRuleProvider(
+	sub *model.Subscription, providerName string, group string, provider model.RuleProvider,
+) {
+	if sub.RuleProviders == nil {
+		sub.RuleProviders = make(map[string]model.RuleProvider)
+	}
+	sub.RuleProviders[providerName] = provider
+	PrependRules(
+		sub,
+		fmt.Sprintf("RULE-SET,%s,%s", providerName, group),
+	)
+}
+
+func AppenddRuleProvider(
+	sub *model.Subscription, providerName string, group string, provider model.RuleProvider,
+) {
+	if sub.RuleProviders == nil {
+		sub.RuleProviders = make(map[string]model.RuleProvider)
+	}
+	sub.RuleProviders[providerName] = provider
+	AppendRules(sub, fmt.Sprintf("RULE-SET,%s,%s", providerName, group))
+}
+
+func PrependRules(sub *model.Subscription, rules ...string) {
+	if sub.Rules == nil {
+		sub.Rules = make([]string, 0)
+	}
+	sub.Rules = append(rules, sub.Rules...)
+}
+
+func AppendRules(sub *model.Subscription, rules ...string) {
+	if sub.Rules == nil {
+		sub.Rules = make([]string, 0)
+	}
+	matchRule := sub.Rules[len(sub.Rules)-1]
+	if strings.Contains(matchRule, "MATCH") {
+		sub.Rules = append(sub.Rules[:len(sub.Rules)-1], rules...)
+		sub.Rules = append(sub.Rules, matchRule)
+		return
+	}
+	sub.Rules = append(sub.Rules, rules...)
+}