refactor(ui): split TUI logic into multiple files and improve styling

internal/ui/table.go

@@ -0,0 +1,133 @@
+package ui
+
+import (
+	"strings"
+
+	"sshm/internal/config"
+	"sshm/internal/history"
+
+	"github.com/charmbracelet/bubbles/table"
+)
+
+// calculateNameColumnWidth calculates the optimal width for the Name column
+// based on the longest hostname, with a minimum of 8 and maximum of 40 characters
+func calculateNameColumnWidth(hosts []config.SSHHost) int {
+	maxLength := 8 // Minimum width to accommodate the "Name" header
+
+	for _, host := range hosts {
+		if len(host.Name) > maxLength {
+			maxLength = len(host.Name)
+		}
+	}
+
+	// Add some padding (2 characters) for better visual spacing
+	maxLength += 2
+
+	// Limit the maximum width to avoid extremely large columns
+	if maxLength > 40 {
+		maxLength = 40
+	}
+
+	return maxLength
+}
+
+// calculateTagsColumnWidth calculates the optimal width for the Tags column
+// based on the longest tag string, with a minimum of 8 and maximum of 40 characters
+func calculateTagsColumnWidth(hosts []config.SSHHost) int {
+	maxLength := 8 // Minimum width to accommodate the "Tags" header
+
+	for _, host := range hosts {
+		// Format tags exactly as they appear in the table
+		var tagsStr string
+		if len(host.Tags) > 0 {
+			// Add the # prefix to each tag and join them with spaces
+			var formattedTags []string
+			for _, tag := range host.Tags {
+				formattedTags = append(formattedTags, "#"+tag)
+			}
+			tagsStr = strings.Join(formattedTags, " ")
+		}
+
+		if len(tagsStr) > maxLength {
+			maxLength = len(tagsStr)
+		}
+	}
+
+	// Add some padding (2 characters) for better visual spacing
+	maxLength += 2
+
+	// Limit the maximum width to avoid extremely large columns
+	if maxLength > 40 {
+		maxLength = 40
+	}
+
+	return maxLength
+}
+
+// calculateLastLoginColumnWidth calculates the optimal width for the Last Login column
+// based on the longest time format, with a minimum of 12 and maximum of 20 characters
+func calculateLastLoginColumnWidth(hosts []config.SSHHost, historyManager *history.HistoryManager) int {
+	maxLength := 12 // Minimum width to accommodate the "Last Login" header
+
+	if historyManager != nil {
+		for _, host := range hosts {
+			if lastConnect, exists := historyManager.GetLastConnectionTime(host.Name); exists {
+				timeStr := formatTimeAgo(lastConnect)
+				if len(timeStr) > maxLength {
+					maxLength = len(timeStr)
+				}
+			}
+		}
+	}
+
+	// Add some padding (2 characters) for better visual spacing
+	maxLength += 2
+
+	// Limit the maximum width to avoid extremely large columns
+	if maxLength > 20 {
+		maxLength = 20
+	}
+
+	return maxLength
+}
+
+// updateTableRows updates the table with filtered hosts
+func (m *Model) updateTableRows() {
+	var rows []table.Row
+	hostsToShow := m.filteredHosts
+	if hostsToShow == nil {
+		hostsToShow = m.hosts
+	}
+
+	for _, host := range hostsToShow {
+		// Format tags for display
+		var tagsStr string
+		if len(host.Tags) > 0 {
+			// Add the # prefix to each tag and join them with spaces
+			var formattedTags []string
+			for _, tag := range host.Tags {
+				formattedTags = append(formattedTags, "#"+tag)
+			}
+			tagsStr = strings.Join(formattedTags, " ")
+		}
+
+		// Format last login information
+		var lastLoginStr string
+		if m.historyManager != nil {
+			if lastConnect, exists := m.historyManager.GetLastConnectionTime(host.Name); exists {
+				lastLoginStr = formatTimeAgo(lastConnect)
+			}
+		}
+
+		rows = append(rows, table.Row{
+			host.Name,
+			host.Hostname,
+			host.User,
+			host.Port,
+			tagsStr,
+			lastLoginStr,
+		})
+	}
+
+	m.table.SetRows(rows)
+}