refactor: extract all data structures to types/types.go
- Move 300+ lines of type definitions to types package - Update all type references throughout main.go - Extract all structs: StoredValue, User, Group, APIToken, etc. - Include all API request/response types - Move permission constants and configuration types - Maintain zero functional changes Reduced main.go from ~3990 to ~3650 lines 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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types/types.go
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276
types/types.go
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package types
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import "encoding/json"
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// Core data structures
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type StoredValue struct {
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UUID string `json:"uuid"`
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Timestamp int64 `json:"timestamp"`
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Data json.RawMessage `json:"data"`
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}
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// Phase 2: Authentication & Authorization data structures
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// User represents a system user
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type User struct {
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UUID string `json:"uuid"` // Server-generated UUID
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NicknameHash string `json:"nickname_hash"` // SHA3-512 hash of nickname
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Groups []string `json:"groups"` // List of group UUIDs this user belongs to
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CreatedAt int64 `json:"created_at"` // Unix timestamp
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UpdatedAt int64 `json:"updated_at"` // Unix timestamp
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}
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// Group represents a user group
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type Group struct {
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UUID string `json:"uuid"` // Server-generated UUID
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NameHash string `json:"name_hash"` // SHA3-512 hash of group name
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Members []string `json:"members"` // List of user UUIDs in this group
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CreatedAt int64 `json:"created_at"` // Unix timestamp
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UpdatedAt int64 `json:"updated_at"` // Unix timestamp
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}
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// APIToken represents a JWT authentication token
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type APIToken struct {
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TokenHash string `json:"token_hash"` // SHA3-512 hash of JWT token
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UserUUID string `json:"user_uuid"` // UUID of the user who owns this token
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Scopes []string `json:"scopes"` // List of permitted scopes (e.g., "read", "write")
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IssuedAt int64 `json:"issued_at"` // Unix timestamp when token was issued
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ExpiresAt int64 `json:"expires_at"` // Unix timestamp when token expires
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}
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// ResourceMetadata contains ownership and permission information for stored resources
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type ResourceMetadata struct {
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OwnerUUID string `json:"owner_uuid"` // UUID of the resource owner
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GroupUUID string `json:"group_uuid"` // UUID of the resource group
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Permissions int `json:"permissions"` // 12-bit permission mask (POSIX-inspired)
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TTL string `json:"ttl"` // Time-to-live duration (Go format)
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CreatedAt int64 `json:"created_at"` // Unix timestamp when resource was created
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UpdatedAt int64 `json:"updated_at"` // Unix timestamp when resource was last updated
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}
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// Permission constants for POSIX-inspired ACL
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const (
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// Owner permissions (bits 11-8)
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PermOwnerCreate = 1 << 11
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PermOwnerDelete = 1 << 10
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PermOwnerWrite = 1 << 9
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PermOwnerRead = 1 << 8
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// Group permissions (bits 7-4)
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PermGroupCreate = 1 << 7
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PermGroupDelete = 1 << 6
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PermGroupWrite = 1 << 5
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PermGroupRead = 1 << 4
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// Others permissions (bits 3-0)
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PermOthersCreate = 1 << 3
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PermOthersDelete = 1 << 2
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PermOthersWrite = 1 << 1
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PermOthersRead = 1 << 0
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// Default permissions: Owner(1111), Group(0110), Others(0010)
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DefaultPermissions = (PermOwnerCreate | PermOwnerDelete | PermOwnerWrite | PermOwnerRead) |
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(PermGroupWrite | PermGroupRead) |
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(PermOthersRead)
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)
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// Phase 2: API request/response structures for authentication endpoints
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// User Management API structures
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type CreateUserRequest struct {
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Nickname string `json:"nickname"`
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}
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type CreateUserResponse struct {
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UUID string `json:"uuid"`
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}
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type UpdateUserRequest struct {
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Nickname string `json:"nickname,omitempty"`
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Groups []string `json:"groups,omitempty"`
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}
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type GetUserResponse struct {
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UUID string `json:"uuid"`
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NicknameHash string `json:"nickname_hash"`
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Groups []string `json:"groups"`
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CreatedAt int64 `json:"created_at"`
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UpdatedAt int64 `json:"updated_at"`
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}
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// Group Management API structures
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type CreateGroupRequest struct {
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Groupname string `json:"groupname"`
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Members []string `json:"members,omitempty"`
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}
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type CreateGroupResponse struct {
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UUID string `json:"uuid"`
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}
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type UpdateGroupRequest struct {
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Members []string `json:"members"`
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}
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type GetGroupResponse struct {
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UUID string `json:"uuid"`
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NameHash string `json:"name_hash"`
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Members []string `json:"members"`
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CreatedAt int64 `json:"created_at"`
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UpdatedAt int64 `json:"updated_at"`
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}
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// Token Management API structures
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type CreateTokenRequest struct {
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UserUUID string `json:"user_uuid"`
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Scopes []string `json:"scopes"`
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}
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type CreateTokenResponse struct {
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Token string `json:"token"`
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ExpiresAt int64 `json:"expires_at"`
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}
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// Cluster and member management types
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type Member struct {
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ID string `json:"id"`
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Address string `json:"address"`
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LastSeen int64 `json:"last_seen"`
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JoinedTimestamp int64 `json:"joined_timestamp"`
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}
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type JoinRequest struct {
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ID string `json:"id"`
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Address string `json:"address"`
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JoinedTimestamp int64 `json:"joined_timestamp"`
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}
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type LeaveRequest struct {
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ID string `json:"id"`
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}
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type PairsByTimeRequest struct {
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StartTimestamp int64 `json:"start_timestamp"`
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EndTimestamp int64 `json:"end_timestamp"`
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Limit int `json:"limit"`
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Prefix string `json:"prefix,omitempty"`
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}
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type PairsByTimeResponse struct {
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Path string `json:"path"`
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UUID string `json:"uuid"`
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Timestamp int64 `json:"timestamp"`
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}
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type PutResponse struct {
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UUID string `json:"uuid"`
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Timestamp int64 `json:"timestamp"`
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}
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// Phase 2: TTL-enabled PUT request structure
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type PutWithTTLRequest struct {
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Data json.RawMessage `json:"data"`
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TTL string `json:"ttl,omitempty"` // Go duration format
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}
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// Phase 2: Tamper-evident logging data structures
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type TamperLogEntry struct {
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Timestamp string `json:"timestamp"` // RFC3339 format
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Action string `json:"action"` // Type of action
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UserUUID string `json:"user_uuid"` // User who performed the action
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Resource string `json:"resource"` // Resource affected
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Signature string `json:"signature"` // SHA3-512 hash of all fields
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}
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// Phase 2: Backup system data structures
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type BackupStatus struct {
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LastBackupTime int64 `json:"last_backup_time"` // Unix timestamp
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LastBackupSuccess bool `json:"last_backup_success"` // Whether last backup succeeded
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LastBackupPath string `json:"last_backup_path"` // Path to last backup file
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NextBackupTime int64 `json:"next_backup_time"` // Unix timestamp of next scheduled backup
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BackupsRunning int `json:"backups_running"` // Number of backups currently running
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}
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// Merkle Tree specific data structures
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type MerkleNode struct {
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Hash []byte `json:"hash"`
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StartKey string `json:"start_key"` // The first key in this node's range
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EndKey string `json:"end_key"` // The last key in this node's range
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}
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// MerkleRootResponse is the response for getting the root hash
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type MerkleRootResponse struct {
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Root *MerkleNode `json:"root"`
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}
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// MerkleTreeDiffRequest is used to request children hashes for a given key range
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type MerkleTreeDiffRequest struct {
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ParentNode MerkleNode `json:"parent_node"` // The node whose children we want to compare (from the remote peer's perspective)
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LocalHash []byte `json:"local_hash"` // The local hash of this node/range (from the requesting peer's perspective)
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}
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// MerkleTreeDiffResponse returns the remote children nodes or the actual keys if it's a leaf level
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type MerkleTreeDiffResponse struct {
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Children []MerkleNode `json:"children,omitempty"` // Children of the remote node
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Keys []string `json:"keys,omitempty"` // Actual keys if this is a leaf-level diff
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}
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// For fetching a range of KV pairs
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type KVRangeRequest struct {
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StartKey string `json:"start_key"`
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EndKey string `json:"end_key"`
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Limit int `json:"limit"` // Max number of items to return
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}
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type KVRangeResponse struct {
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Pairs []struct {
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Path string `json:"path"`
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StoredValue StoredValue `json:"stored_value"`
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} `json:"pairs"`
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}
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// Configuration
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type Config struct {
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NodeID string `yaml:"node_id"`
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BindAddress string `yaml:"bind_address"`
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Port int `yaml:"port"`
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DataDir string `yaml:"data_dir"`
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SeedNodes []string `yaml:"seed_nodes"`
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ReadOnly bool `yaml:"read_only"`
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LogLevel string `yaml:"log_level"`
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GossipIntervalMin int `yaml:"gossip_interval_min"`
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GossipIntervalMax int `yaml:"gossip_interval_max"`
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SyncInterval int `yaml:"sync_interval"`
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CatchupInterval int `yaml:"catchup_interval"`
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BootstrapMaxAgeHours int `yaml:"bootstrap_max_age_hours"`
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ThrottleDelayMs int `yaml:"throttle_delay_ms"`
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FetchDelayMs int `yaml:"fetch_delay_ms"`
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// Phase 2: Database compression configuration
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CompressionEnabled bool `yaml:"compression_enabled"`
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CompressionLevel int `yaml:"compression_level"`
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// Phase 2: TTL configuration
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DefaultTTL string `yaml:"default_ttl"` // Go duration format, "0" means no default TTL
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MaxJSONSize int `yaml:"max_json_size"` // Maximum JSON size in bytes
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// Phase 2: Rate limiting configuration
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RateLimitRequests int `yaml:"rate_limit_requests"` // Max requests per window
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RateLimitWindow string `yaml:"rate_limit_window"` // Window duration (Go format)
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// Phase 2: Tamper-evident logging configuration
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TamperLogActions []string `yaml:"tamper_log_actions"` // Actions to log
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// Phase 2: Backup system configuration
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BackupEnabled bool `yaml:"backup_enabled"` // Enable/disable automated backups
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BackupSchedule string `yaml:"backup_schedule"` // Cron schedule format
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BackupPath string `yaml:"backup_path"` // Directory to store backups
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BackupRetention int `yaml:"backup_retention"` // Days to keep backups
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// Feature toggles for optional functionalities
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AuthEnabled bool `yaml:"auth_enabled"` // Enable/disable authentication system
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TamperLoggingEnabled bool `yaml:"tamper_logging_enabled"` // Enable/disable tamper-evident logging
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ClusteringEnabled bool `yaml:"clustering_enabled"` // Enable/disable clustering/gossip
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RateLimitingEnabled bool `yaml:"rate_limiting_enabled"` // Enable/disable rate limiting
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RevisionHistoryEnabled bool `yaml:"revision_history_enabled"` // Enable/disable revision history
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}
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