refactor(auth): modularize auth plugin with physical subpackages and decoupled services

backend/plugins/domain/auth/model/do/cap_settings.go

@@ -0,0 +1,75 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+// Package do provides domain data objects for the auth plugin.
+package do
+
+import (
+	"Wavelet/plugins/domain/auth/consts"
+	"strconv"
+	"time"
+)
+
+// CapRuntimeSettings is the parsed CAPTCHA runtime configuration loaded from system_configs.
+type CapRuntimeSettings struct {
+	LoginEnabled        bool
+	ChallengeCount      int
+	ChallengeSize       int
+	ChallengeDifficulty int
+	ChallengeTTL        time.Duration
+	TokenTTL            time.Duration
+}
+
+// CapConfigRecord maps the columns selected from the system config table.
+type CapConfigRecord struct {
+	Key   string `gorm:"column:key"`
+	Value string `gorm:"column:value"`
+}
+
+// ParseCapRuntimeSettings parses system config key-value map into CapRuntimeSettings with fallback defaults.
+func ParseCapRuntimeSettings(configs map[string]string) CapRuntimeSettings {
+	settings := CapRuntimeSettings{
+		ChallengeCount:      consts.DefaultCapChallengeCount,
+		ChallengeSize:       consts.DefaultCapChallengeSize,
+		ChallengeDifficulty: consts.DefaultCapChallengeDifficulty,
+		ChallengeTTL:        consts.DefaultCapChallengeTTL,
+		TokenTTL:            consts.DefaultCapTokenTTL,
+	}
+
+	if len(configs) == 0 {
+		return settings
+	}
+
+	if val, ok := configs[consts.ConfigKeyCapLoginEnabled]; ok {
+		if enabled, err := strconv.ParseBool(val); err == nil {
+			settings.LoginEnabled = enabled
+		}
+	}
+	if val, ok := configs[consts.ConfigKeyCapChallengeCount]; ok {
+		if count, err := strconv.Atoi(val); err == nil && count > 0 {
+			settings.ChallengeCount = count
+		}
+	}
+	if val, ok := configs[consts.ConfigKeyCapChallengeSize]; ok {
+		if size, err := strconv.Atoi(val); err == nil && size > 0 {
+			settings.ChallengeSize = size
+		}
+	}
+	if val, ok := configs[consts.ConfigKeyCapChallengeDifficulty]; ok {
+		if diff, err := strconv.Atoi(val); err == nil && diff > 0 {
+			settings.ChallengeDifficulty = diff
+		}
+	}
+	if val, ok := configs[consts.ConfigKeyCapChallengeTTL]; ok {
+		if ttlSeconds, err := strconv.Atoi(val); err == nil && ttlSeconds > 0 {
+			settings.ChallengeTTL = time.Duration(ttlSeconds) * time.Second
+		}
+	}
+	if val, ok := configs[consts.ConfigKeyCapTokenTTL]; ok {
+		if ttlSeconds, err := strconv.Atoi(val); err == nil && ttlSeconds > 0 {
+			settings.TokenTTL = time.Duration(ttlSeconds) * time.Second
+		}
+	}
+
+	return settings
+}