CodeGraph CLI MCP Server

use crate::{ApiError, ApiResult, AppState}; use axum::{ extract::{Path, Query, State}, http::StatusCode, Json, }; use chrono::{DateTime, Utc}; use codegraph_core::{ ChangeType, IsolationLevel, Snapshot, SnapshotId, TransactionId, Version, VersionDiff, VersionId, }; use crate::graph_stub::{ Branch, ConcurrentTransactionManager, ConflictType, GitLikeVersionManager, IntegrityReport, MergeConflict, MergeResult, RebaseResult, RecoveryManager, RecoveryStatistics, Tag, TransactionStatistics, TransactionalGraph, }; use serde::{Deserialize, Serialize}; use std::collections::HashMap; use uuid::Uuid; // Request/Response DTOs #[derive(Deserialize)] pub struct BeginTransactionRequest { pub isolation_level: Option<String>, // "read_uncommitted", "read_committed", "repeatable_read", "serializable" } #[derive(Serialize)] pub struct BeginTransactionResponse { pub transaction_id: String, pub isolation_level: String, } #[derive(Serialize)] pub struct TransactionResponse { pub transaction_id: String, pub status: String, pub message: String, } #[derive(Deserialize)] pub struct CreateVersionRequest { pub name: String, pub description: String, pub author: String, pub parent_versions: Vec<String>, } #[derive(Serialize)] pub struct CreateVersionResponse { pub version_id: String, pub snapshot_id: String, } #[derive(Serialize)] pub struct VersionDto { pub id: String, pub name: String, pub description: String, pub author: String, pub created_at: DateTime<Utc>, pub snapshot_id: String, pub parent_versions: Vec<String>, pub tags: Vec<String>, pub metadata: HashMap<String, String>, } #[derive(Serialize)] pub struct SnapshotDto { pub id: String, pub created_at: DateTime<Utc>, pub transaction_id: String, pub parent_snapshot: Option<String>, pub children_snapshots: Vec<String>, pub node_count: usize, pub ref_count: u64, } #[derive(Serialize)] pub struct VersionDiffDto { pub from_version: String, pub to_version: String, pub added_nodes: Vec<String>, pub modified_nodes: Vec<String>, pub deleted_nodes: Vec<String>, pub node_changes: HashMap<String, NodeChangeDto>, } #[derive(Serialize)] pub struct NodeChangeDto { pub old_content_hash: Option<String>, pub new_content_hash: Option<String>, pub change_type: String, } #[derive(Deserialize)] pub struct CreateBranchRequest { pub name: String, pub from_version: String, pub author: String, pub description: Option<String>, } #[derive(Serialize)] pub struct BranchDto { pub name: String, pub head: String, pub created_at: DateTime<Utc>, pub created_by: String, pub description: Option<String>, pub protected: bool, } #[derive(Deserialize)] pub struct CreateTagRequest { pub name: String, pub version_id: String, pub message: Option<String>, pub author: String, } #[derive(Serialize)] pub struct TagDto { pub name: String, pub version_id: String, pub created_at: DateTime<Utc>, pub created_by: String, pub message: Option<String>, pub is_annotated: bool, } #[derive(Deserialize)] pub struct MergeRequest { pub source_branch: String, pub target_branch: String, pub author: String, pub message: Option<String>, } #[derive(Serialize)] pub struct MergeResultDto { pub success: bool, pub conflicts: Vec<MergeConflictDto>, pub merged_version_id: Option<String>, pub merge_commit_message: String, } #[derive(Serialize)] pub struct MergeConflictDto { pub node_id: String, pub base_content_hash: Option<String>, pub ours_content_hash: String, pub theirs_content_hash: String, pub conflict_type: String, } #[derive(Serialize)] pub struct TransactionStatsDto { pub active_transactions: usize, pub committed_transactions: u64, pub aborted_transactions: u64, pub average_commit_time_ms: f64, pub deadlocks_detected: u64, } #[derive(Serialize)] pub struct RecoveryStatsDto { pub last_integrity_check: Option<DateTime<Utc>>, pub recovery_in_progress: bool, pub failed_recovery_attempts: u32, pub quarantined_items: usize, } #[derive(Serialize)] pub struct IntegrityReportDto { pub timestamp: DateTime<Utc>, pub issue_count: usize, pub corrupted_data_count: usize, pub orphaned_snapshots_count: usize, pub missing_content_count: usize, pub checksum_mismatches_count: usize, pub severity: String, // "low", "medium", "high", "critical" } // Transaction Management Handlers pub async fn begin_transaction( State(state): State<AppState>, Json(request): Json<BeginTransactionRequest>, ) -> ApiResult<Json<BeginTransactionResponse>> { let isolation_level = match request.isolation_level.as_deref() { Some("read_uncommitted") => IsolationLevel::ReadUncommitted, Some("read_committed") => IsolationLevel::ReadCommitted, Some("repeatable_read") => IsolationLevel::RepeatableRead, Some("serializable") => IsolationLevel::Serializable, _ => IsolationLevel::ReadCommitted, }; // TODO: Use the actual transactional graph from state // For now, this is a placeholder implementation let transaction_id = TransactionId::new_v4(); Ok(Json(BeginTransactionResponse { transaction_id: transaction_id.to_string(), isolation_level: format!("{:?}", isolation_level), })) } pub async fn commit_transaction( State(state): State<AppState>, Path(transaction_id): Path<String>, ) -> ApiResult<Json<TransactionResponse>> { let tx_id = Uuid::parse_str(&transaction_id) .map_err(|_| ApiError::BadRequest("Invalid transaction ID format".to_string()))?; // TODO: Implement actual transaction commit Ok(Json(TransactionResponse { transaction_id: transaction_id, status: "committed".to_string(), message: "Transaction committed successfully".to_string(), })) } pub async fn rollback_transaction( State(state): State<AppState>, Path(transaction_id): Path<String>, ) -> ApiResult<Json<TransactionResponse>> { let tx_id = Uuid::parse_str(&transaction_id) .map_err(|_| ApiError::BadRequest("Invalid transaction ID format".to_string()))?; // TODO: Implement actual transaction rollback Ok(Json(TransactionResponse { transaction_id: transaction_id, status: "rolled_back".to_string(), message: "Transaction rolled back successfully".to_string(), })) } // Version Management Handlers pub async fn create_version( State(state): State<AppState>, Json(request): Json<CreateVersionRequest>, ) -> ApiResult<Json<CreateVersionResponse>> { let parent_versions: Result<Vec<VersionId>, _> = request .parent_versions .iter() .map(|id| Uuid::parse_str(id)) .collect(); let parent_versions = parent_versions .map_err(|_| ApiError::BadRequest("Invalid parent version ID format".to_string()))?; // TODO: Implement actual version creation let version_id = VersionId::new_v4(); let snapshot_id = SnapshotId::new_v4(); Ok(Json(CreateVersionResponse { version_id: version_id.to_string(), snapshot_id: snapshot_id.to_string(), })) } pub async fn get_version( State(state): State<AppState>, Path(version_id): Path<String>, ) -> ApiResult<Json<VersionDto>> { let id = Uuid::parse_str(&version_id) .map_err(|_| ApiError::BadRequest("Invalid version ID format".to_string()))?; // TODO: Implement actual version retrieval Ok(Json(VersionDto { id: version_id, name: "placeholder".to_string(), description: "Placeholder version".to_string(), author: "system".to_string(), created_at: Utc::now(), snapshot_id: SnapshotId::new_v4().to_string(), parent_versions: vec![], tags: vec![], metadata: HashMap::new(), })) } pub async fn list_versions( State(state): State<AppState>, Query(params): Query<HashMap<String, String>>, ) -> ApiResult<Json<Vec<VersionDto>>> { let limit = params .get("limit") .and_then(|s| s.parse().ok()) .unwrap_or(50); // TODO: Implement actual version listing Ok(Json(vec![])) } pub async fn tag_version( State(state): State<AppState>, Path(version_id): Path<String>, Json(request): Json<CreateTagRequest>, ) -> ApiResult<Json<TagDto>> { let id = Uuid::parse_str(&version_id) .map_err(|_| ApiError::BadRequest("Invalid version ID format".to_string()))?; // TODO: Implement actual version tagging Ok(Json(TagDto { name: request.name, version_id: version_id, created_at: Utc::now(), created_by: request.author, message: request.message, is_annotated: true, })) } pub async fn compare_versions( State(state): State<AppState>, Path((from_version, to_version)): Path<(String, String)>, ) -> ApiResult<Json<VersionDiffDto>> { let from_id = Uuid::parse_str(&from_version) .map_err(|_| ApiError::BadRequest("Invalid from_version ID format".to_string()))?; let to_id = Uuid::parse_str(&to_version) .map_err(|_| ApiError::BadRequest("Invalid to_version ID format".to_string()))?; // TODO: Implement actual version comparison Ok(Json(VersionDiffDto { from_version: from_version, to_version: to_version, added_nodes: vec![], modified_nodes: vec![], deleted_nodes: vec![], node_changes: HashMap::new(), })) } // Branch Management Handlers pub async fn create_branch( State(state): State<AppState>, Json(request): Json<CreateBranchRequest>, ) -> ApiResult<Json<BranchDto>> { let from_version_id = Uuid::parse_str(&request.from_version) .map_err(|_| ApiError::BadRequest("Invalid from_version ID format".to_string()))?; // TODO: Implement actual branch creation Ok(Json(BranchDto { name: request.name, head: request.from_version, created_at: Utc::now(), created_by: request.author, description: request.description, protected: false, })) } pub async fn list_branches(State(state): State<AppState>) -> ApiResult<Json<Vec<BranchDto>>> { // TODO: Implement actual branch listing Ok(Json(vec![])) } pub async fn get_branch( State(state): State<AppState>, Path(branch_name): Path<String>, ) -> ApiResult<Json<BranchDto>> { // TODO: Implement actual branch retrieval Ok(Json(BranchDto { name: branch_name, head: VersionId::new_v4().to_string(), created_at: Utc::now(), created_by: "system".to_string(), description: None, protected: false, })) } pub async fn delete_branch( State(state): State<AppState>, Path(branch_name): Path<String>, ) -> ApiResult<StatusCode> { // TODO: Implement actual branch deletion Ok(StatusCode::NO_CONTENT) } // Merge Operations Handlers pub async fn merge_branches( State(state): State<AppState>, Json(request): Json<MergeRequest>, ) -> ApiResult<Json<MergeResultDto>> { // TODO: Implement actual branch merging Ok(Json(MergeResultDto { success: true, conflicts: vec![], merged_version_id: Some(VersionId::new_v4().to_string()), merge_commit_message: request.message.unwrap_or_else(|| { format!( "Merge branch '{}' into '{}'", request.source_branch, request.target_branch ) }), })) } pub async fn resolve_conflicts( State(state): State<AppState>, Path(merge_id): Path<String>, Json(resolutions): Json<HashMap<String, String>>, // node_id -> resolution_strategy ) -> ApiResult<Json<MergeResultDto>> { // TODO: Implement conflict resolution Ok(Json(MergeResultDto { success: true, conflicts: vec![], merged_version_id: Some(VersionId::new_v4().to_string()), merge_commit_message: "Resolved merge conflicts".to_string(), })) } // Snapshot Management Handlers pub async fn create_snapshot( State(state): State<AppState>, Path(transaction_id): Path<String>, ) -> ApiResult<Json<SnapshotDto>> { let tx_id = Uuid::parse_str(&transaction_id) .map_err(|_| ApiError::BadRequest("Invalid transaction ID format".to_string()))?; // TODO: Implement actual snapshot creation let snapshot_id = SnapshotId::new_v4(); Ok(Json(SnapshotDto { id: snapshot_id.to_string(), created_at: Utc::now(), transaction_id: transaction_id, parent_snapshot: None, children_snapshots: vec![], node_count: 0, ref_count: 1, })) } pub async fn get_snapshot( State(state): State<AppState>, Path(snapshot_id): Path<String>, ) -> ApiResult<Json<SnapshotDto>> { let id = Uuid::parse_str(&snapshot_id) .map_err(|_| ApiError::BadRequest("Invalid snapshot ID format".to_string()))?; // TODO: Implement actual snapshot retrieval Ok(Json(SnapshotDto { id: snapshot_id, created_at: Utc::now(), transaction_id: TransactionId::new_v4().to_string(), parent_snapshot: None, children_snapshots: vec![], node_count: 0, ref_count: 1, })) } // Statistics and Monitoring Handlers pub async fn get_transaction_stats( State(state): State<AppState>, ) -> ApiResult<Json<TransactionStatsDto>> { // TODO: Implement actual transaction statistics Ok(Json(TransactionStatsDto { active_transactions: 0, committed_transactions: 0, aborted_transactions: 0, average_commit_time_ms: 0.0, deadlocks_detected: 0, })) } pub async fn get_recovery_stats( State(state): State<AppState>, ) -> ApiResult<Json<RecoveryStatsDto>> { // TODO: Implement actual recovery statistics Ok(Json(RecoveryStatsDto { last_integrity_check: None, recovery_in_progress: false, failed_recovery_attempts: 0, quarantined_items: 0, })) } pub async fn run_integrity_check( State(state): State<AppState>, ) -> ApiResult<Json<IntegrityReportDto>> { // TODO: Implement actual integrity check Ok(Json(IntegrityReportDto { timestamp: Utc::now(), issue_count: 0, corrupted_data_count: 0, orphaned_snapshots_count: 0, missing_content_count: 0, checksum_mismatches_count: 0, severity: "low".to_string(), })) } pub async fn create_backup( State(state): State<AppState>, ) -> ApiResult<Json<HashMap<String, String>>> { // TODO: Implement actual backup creation Ok(Json(HashMap::from([ ("backup_id".to_string(), Uuid::new_v4().to_string()), ("status".to_string(), "created".to_string()), ( "message".to_string(), "Backup created successfully".to_string(), ), ]))) } pub async fn restore_from_backup( State(state): State<AppState>, Path(backup_id): Path<String>, ) -> ApiResult<Json<HashMap<String, String>>> { // TODO: Implement actual backup restoration Ok(Json(HashMap::from([ ("status".to_string(), "restored".to_string()), ( "message".to_string(), format!("Restored from backup {}", backup_id), ), ]))) } // Helper functions (avoid orphan impls) fn change_type_to_string(change_type: ChangeType) -> String { match change_type { ChangeType::Added => "added".to_string(), ChangeType::Modified => "modified".to_string(), ChangeType::Deleted => "deleted".to_string(), } } fn conflict_type_to_string(conflict_type: ConflictType) -> String { match conflict_type { ConflictType::ContentMismatch => "content_mismatch".to_string(), ConflictType::DeletedByUs => "deleted_by_us".to_string(), ConflictType::DeletedByThem => "deleted_by_them".to_string(), ConflictType::AddedByBoth => "added_by_both".to_string(), } } fn convert_version_diff(diff: VersionDiff, from: String, to: String) -> VersionDiffDto { let node_changes = diff .node_changes .into_iter() .map(|(node_id, change)| { ( node_id.to_string(), NodeChangeDto { old_content_hash: change.old_content_hash, new_content_hash: change.new_content_hash, change_type: change_type_to_string(change.change_type), }, ) }) .collect(); VersionDiffDto { from_version: from, to_version: to, added_nodes: diff .added_nodes .into_iter() .map(|id| id.to_string()) .collect(), modified_nodes: diff .modified_nodes .into_iter() .map(|id| id.to_string()) .collect(), deleted_nodes: diff .deleted_nodes .into_iter() .map(|id| id.to_string()) .collect(), node_changes, } } fn convert_merge_result(result: MergeResult) -> MergeResultDto { let conflicts = result .conflicts .into_iter() .map(|conflict| MergeConflictDto { node_id: conflict.node_id.to_string(), base_content_hash: conflict.base_content_hash, ours_content_hash: conflict.ours_content_hash, theirs_content_hash: conflict.theirs_content_hash, conflict_type: conflict_type_to_string(conflict.conflict_type), }) .collect(); MergeResultDto { success: result.success, conflicts, merged_version_id: result.merged_version_id.map(|id| id.to_string()), merge_commit_message: result.merge_commit_message, } }