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package eventstream
import (
"fmt"
"strconv"
"strings"
"ior/internal/tui/common"
"charm.land/lipgloss/v2"
)
type columnLayout struct {
gap int
latency int
comm int
pid int
tid int
syscall int
fd int
ret int
bytes int
file int
}
func RenderStreamTable(width int, paused bool, totalCount, filteredCount, bufferLen, bufferCap int, filter Filter, filterStack []string, events []StreamEvent, selectedVisibleIdx int, selectedCol int) string {
if width <= 0 {
width = 100
}
contentWidth := panelContentWidth(width)
columns := streamColumns(contentWidth)
lines := make([]string, 0, len(events)+3)
lines = append(lines, renderStatusLine(paused, totalCount, filteredCount, bufferLen, bufferCap))
lines = append(lines, renderFilterLine(filter))
if len(filterStack) > 0 {
lines = append(lines, renderFilterStackLine(filterStack))
}
lines = append(lines, common.RenderTableHeader(columns))
for i, ev := range events {
lines = append(lines, renderEventRow(ev, columns, i == selectedVisibleIdx, selectedCol))
}
return common.PanelStyle.Width(contentWidth).Render(strings.Join(lines, "\n"))
}
func RenderFDTraceTable(width int, pid uint32, fd int32, totalCount int, events []StreamEvent) string {
if width <= 0 {
width = 100
}
contentWidth := panelContentWidth(width)
lines := make([]string, 0, len(events)+3)
lines = append(lines, common.HeaderStyle.Render("FD Trace (ring snapshot)"))
lines = append(lines, fmt.Sprintf("PID:%d FD:%d matched:%d", pid, fd, totalCount))
columns := streamColumns(contentWidth)
lines = append(lines, common.RenderTableHeader(columns))
for _, ev := range events {
lines = append(lines, renderEventRow(ev, columns, false, -1))
}
return common.PanelStyle.Width(contentWidth).Render(strings.Join(lines, "\n"))
}
func renderStatusLine(paused bool, totalCount, filteredCount, bufferLen, bufferCap int) string {
state := common.HighlightStyle.Render("LIVE")
if paused {
state = common.ErrorStyle.Render("PAUSED")
}
buffer := strconv.Itoa(bufferLen)
if bufferCap > 0 {
buffer = fmt.Sprintf("%d/%d", bufferLen, bufferCap)
}
return fmt.Sprintf("%s | total:%d filtered:%d buffer:%s", state, totalCount, filteredCount, buffer)
}
func renderFilterLine(filter Filter) string {
summary := filter.Summary()
if summary == "all" {
summary = common.HighlightStyle.Render(summary)
}
return common.HeaderStyle.Render("Filter:") + " " + summary
}
func renderFilterStackLine(filterStack []string) string {
return common.HeaderStyle.Render("Stack:") + " " + strings.Join(filterStack, " | ")
}
func streamColumns(width int) []common.TableColumn {
cols := computeColumnLayout(width)
return []common.TableColumn{
{Title: "Gap", Width: cols.gap},
{Title: "Latency", Width: cols.latency},
{Title: "Comm", Width: cols.comm},
{Title: "PID", Width: cols.pid},
{Title: "TID", Width: cols.tid},
{Title: "Syscall", Width: cols.syscall},
{Title: "FD", Width: cols.fd},
{Title: "Ret", Width: cols.ret},
{Title: "Bytes", Width: cols.bytes},
{Title: "File", Width: cols.file},
}
}
func renderEventRow(ev StreamEvent, columns []common.TableColumn, selected bool, selectedCol int) string {
fd := "-"
if ev.FD >= 0 {
fd = strconv.FormatInt(int64(ev.FD), 10)
}
cells := []string{
fitCell(formatDurationNs(ev.GapNs), columns[0].Width),
fitCell(formatDurationNs(ev.DurationNs), columns[1].Width),
fitCell(ev.Comm, columns[2].Width),
fitCell(strconv.FormatUint(uint64(ev.PID), 10), columns[3].Width),
fitCell(strconv.FormatUint(uint64(ev.TID), 10), columns[4].Width),
fitCell(ev.Syscall, columns[5].Width),
fitCell(fd, columns[6].Width),
fitCell(strconv.FormatInt(ev.RetVal, 10), columns[7].Width),
fitCell(strconv.FormatUint(ev.Bytes, 10), columns[8].Width),
fitCell(ev.FileName, columns[9].Width),
}
if ev.IsError {
return common.RenderTableRow(columns, cells, selected, selectedCol, common.ErrorStyle)
}
return common.RenderTableRow(columns, cells, selected, selectedCol, lipgloss.Style{})
}
func computeColumnLayout(width int) columnLayout {
if width <= 0 {
width = 100
}
// Keep non-file columns compact so file paths can use most of the row.
gap := 7
latency := 8
comm := 10
pid := 7
tid := 7
syscall := 9
fd := 4
ret := 5
bytes := 8
fixed := gap + latency + comm + pid + tid + syscall + fd + ret + bytes + 9
file := width - fixed
if file >= 28 {
// On wider terminals, give a little more room back to descriptive columns.
if width >= 140 {
comm = 12
syscall = 11
pid = 8
tid = 8
fixed = gap + latency + comm + pid + tid + syscall + fd + ret + bytes + 9
file = width - fixed
}
return columnLayout{gap: gap, latency: latency, comm: comm, pid: pid, tid: tid, syscall: syscall, fd: fd, ret: ret, bytes: bytes, file: file}
}
// Very narrow widths: compress further but keep file column readable.
comm = 8
pid = 6
tid = 6
syscall = 8
fd = 3
ret = 4
bytes = 7
fixed = gap + latency + comm + pid + tid + syscall + fd + ret + bytes + 9
file = width - fixed
if file < 12 {
file = 12
}
return columnLayout{gap: gap, latency: latency, comm: comm, pid: pid, tid: tid, syscall: syscall, fd: fd, ret: ret, bytes: bytes, file: file}
}
func formatDurationNs(v uint64) string {
if v < 1000 {
return fmt.Sprintf("%dns", v)
}
us := float64(v) / 1000
if us < 1000 {
return fmt.Sprintf("%.1fus", us)
}
ms := us / 1000
if ms < 1000 {
return fmt.Sprintf("%.1fms", ms)
}
s := ms / 1000
return fmt.Sprintf("%.2fs", s)
}
func truncateMiddle(path string, limit int) string {
if limit <= 0 {
return ""
}
if len(path) <= limit {
return path
}
if limit <= 3 {
return path[:limit]
}
head := (limit - 3) / 2
tail := limit - 3 - head
if tail <= 0 {
return path[:limit]
}
return path[:head] + "..." + path[len(path)-tail:]
}
func fitCell(s string, width int) string {
return truncateMiddle(sanitizeOneLine(s), width)
}
func sanitizeOneLine(s string) string {
s = strings.ReplaceAll(s, "\n", " ")
s = strings.ReplaceAll(s, "\r", " ")
s = strings.ReplaceAll(s, "\t", " ")
return s
}
func panelContentWidth(width int) int {
// common.PanelStyle uses 1-char border on each side and 1-char horizontal
// padding on each side: subtract 4 from total width for content.
inner := width - 4
if inner < 20 {
return 20
}
return inner
}
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