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renderer.go
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renderer.go
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package collector
import (
"fmt"
"github.com/celskeggs/hailburst/sim/model"
"github.com/celskeggs/hailburst/sim/telecomm/transport"
"io"
"log"
"os"
"strings"
)
const WIDTH = 117
type renderer struct {
sim model.SimContext
underlying ActivityCollector
output io.WriteCloser
}
const (
ColorBlack = "0"
ColorRed = "1"
ColorGreen = "2"
ColorYellow = "3"
ColorBlue = "4"
ColorMagenta = "5"
ColorCyan = "6"
ColorWhite = "7"
)
func WithColor(text string, color string) string {
return fmt.Sprintf("\033[1;3%sm%s\033[0m", color, text)
}
func (a *renderer) display(color, left, mid, right string) {
if a.output != nil {
padding := WIDTH - len(left) - len(mid) - len(right)
if padding < 0 {
padding = 0
}
padLeft := strings.Repeat(" ", padding/2)
padRight := strings.Repeat(" ", padding-len(padLeft))
_, err := fmt.Fprintln(a.output, WithColor(left + padLeft + mid + padRight + right, color))
if err != nil {
log.Printf("Activity log print error: %v", err)
err = a.output.Close()
if err != nil {
log.Printf("Activity log close error: %v", err)
}
a.output = nil
}
}
}
func s(text string, a ...interface{}) string {
return fmt.Sprintf(text, a...)
}
func v(timestamp model.VirtualTime) string {
return fmt.Sprintf("[%v]", timestamp)
}
func vL(timestamp model.VirtualTime, text string, a ...interface{}) string {
return fmt.Sprintf("[%v] %s", timestamp, fmt.Sprintf(text, a...))
}
func vR(timestamp model.VirtualTime, text string, a ...interface{}) string {
return fmt.Sprintf("%s [%v]", fmt.Sprintf(text, a...), timestamp)
}
func (a *renderer) OnCommandUplink(command transport.Command, sendTimestamp model.VirtualTime) {
a.display(ColorMagenta, v(sendTimestamp), "", vR(a.sim.Now(), "UPLINK %v -------->", command))
a.underlying.OnCommandUplink(command, sendTimestamp)
}
func (a *renderer) OnTelemetryErrors(byteErrors int, packetErrors int) {
if byteErrors != 0 {
a.display(ColorCyan, vL(a.sim.Now(), "<-------- DOWNLINK %v CORRUPT BYTES", byteErrors), "", "")
}
if packetErrors != 0 {
a.display(ColorCyan, vL(a.sim.Now(), "<-------- DOWNLINK %v CORRUPT PACKETS", packetErrors), "", "")
}
a.underlying.OnTelemetryErrors(byteErrors, packetErrors)
}
func (a *renderer) OnTelemetryDownlink(telemetry transport.Telemetry, remoteTimestamp model.VirtualTime) {
a.display(ColorCyan, vL(a.sim.Now(), "<-------- DOWNLINK %v", telemetry), "", v(remoteTimestamp))
a.underlying.OnTelemetryDownlink(telemetry, remoteTimestamp)
}
func (a *renderer) OnSetMagnetometerPower(powered bool) {
if powered {
a.display(ColorYellow, "", "S/C SET MAGNETOMETER POWER = ON", v(a.sim.Now()))
} else {
a.display(ColorYellow, "", "S/C SET MAGNETOMETER POWER = OFF", v(a.sim.Now()))
}
a.underlying.OnSetMagnetometerPower(powered)
}
func (a *renderer) OnMeasureMagnetometer(x, y, z int16) {
a.display(ColorYellow, "", s("S/C SAMPLE MAGNETOMETER <%d,%d,%d>", x, y, z), v(a.sim.Now()))
a.underlying.OnMeasureMagnetometer(x, y, z)
}
func MakeActivityRenderer(sim model.SimContext, logPath string, underlying ActivityCollector) ActivityCollector {
logOutput, err := os.Create(logPath)
if err != nil {
log.Panic(err)
}
a := &renderer{
sim: sim,
underlying: underlying,
output: logOutput,
}
a.display(ColorYellow, v(a.sim.Now()), "ACTIVITY LOG STARTS NOW", v(a.sim.Now()))
return a
}