refactor server repo

internal/adapters/data/file/ssh_config_manager.go

@@ -0,0 +1,133 @@
+// Copyright 2025.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package file
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/Adembc/lazyssh/internal/core/domain"
+)
+
+const (
+	ManagedByComment = "# Managed by lazyssh"
+	DefaultPort      = 22
+)
+
+type sshConfigManager struct {
+	filePath string
+}
+
+func newSSHConfigManager(filePath string) *sshConfigManager {
+	return &sshConfigManager{filePath: filePath}
+}
+
+func (m *sshConfigManager) parseServers() ([]domain.Server, error) {
+	file, err := os.Open(m.filePath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return []domain.Server{}, nil
+		}
+		return nil, err
+	}
+	defer file.Close()
+
+	parser := &SSHConfigParser{}
+	return parser.Parse(file)
+}
+
+func (m *sshConfigManager) writeServers(servers []domain.Server) error {
+	if err := m.ensureDirectory(); err != nil {
+		return err
+	}
+
+	file, err := os.Create(m.filePath)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	writer := &SSHConfigWriter{}
+	return writer.Write(file, servers)
+}
+
+func (m *sshConfigManager) addServer(server domain.Server) error {
+	servers, err := m.parseServers()
+	if err != nil {
+		return err
+	}
+
+	// Check for duplicates
+	for _, srv := range servers {
+		if srv.Alias == server.Alias {
+			return fmt.Errorf("server with alias '%s' already exists", server.Alias)
+		}
+	}
+
+	servers = append(servers, server)
+	return m.writeServers(servers)
+}
+
+func (m *sshConfigManager) updateServer(alias string, newServer domain.Server) error {
+	servers, err := m.parseServers()
+	if err != nil {
+		return err
+	}
+
+	found := false
+	for i, srv := range servers {
+		if srv.Alias == alias {
+			servers[i] = newServer
+			found = true
+			break
+		}
+	}
+
+	if !found {
+		return fmt.Errorf("server with alias '%s' not found", alias)
+	}
+
+	return m.writeServers(servers)
+}
+
+func (m *sshConfigManager) deleteServer(alias string) error {
+	servers, err := m.parseServers()
+	if err != nil {
+		return err
+	}
+
+	newServers := make([]domain.Server, 0, len(servers))
+	found := false
+
+	for _, srv := range servers {
+		if srv.Alias != alias {
+			newServers = append(newServers, srv)
+		} else {
+			found = true
+		}
+	}
+
+	if !found {
+		return fmt.Errorf("server with alias '%s' not found", alias)
+	}
+
+	return m.writeServers(newServers)
+}
+
+func (m *sshConfigManager) ensureDirectory() error {
+	dir := filepath.Dir(m.filePath)
+	return os.MkdirAll(dir, 0o700)
+}