Add the worker setup wizard (setup, --config, --check) to worker-agent

This commit is contained in:
Emil
2026-08-03 00:22:37 +03:00
parent e923627ce0
commit 46645b8730
6 changed files with 1353 additions and 4 deletions
+138 -4
View File
@@ -1,14 +1,24 @@
// Command worker-agent is the Go worker agent: a coordinator client that
// executes SDK workloads in a Python subprocess per claimed task.
// executes SDK workloads in a Python subprocess per claimed task. It also
// carries the local setup wizard (`worker-agent setup`) so a machine that
// installs only the worker can configure and start itself without a
// coordinator on site.
package main
import (
"context"
"flag"
"fmt"
"log/slog"
"net/http"
"os"
"os/exec"
"os/signal"
"syscall"
"time"
"github.com/emil28092005/SciMesh/coordinator/internal/agent"
"github.com/emil28092005/SciMesh/coordinator/internal/agent/setupui"
)
// version is injected at build time (-ldflags "-X main.version=...") and
@@ -16,13 +26,44 @@ import (
var version = "dev"
func main() {
showVersion := flag.Bool("version", false, "print the build version and exit")
flag.Parse()
if len(os.Args) > 1 && os.Args[1] == "setup" {
os.Exit(runSetup(os.Args[2:]))
}
fs := flag.NewFlagSet("worker-agent", flag.ExitOnError)
showVersion := fs.Bool("version", false, "print the build version and exit")
configPath := fs.String("config", "", "path to a JSON config file (SCIMESH_WORKER_CONFIG overrides the default)")
checkMode := fs.Bool("check", false, "run the preflight check (coordinator + local runtime) and exit 0/1")
checkURL := fs.String("coordinator-url", "", "coordinator URL to probe in --check mode")
_ = fs.Parse(os.Args[1:])
agent.Version = version
if *showVersion {
fmt.Println("worker-agent " + version)
return
}
config, err := agent.LoadConfig()
if *checkMode {
url := *checkURL
if url == "" {
url = os.Getenv("COORDINATOR_URL")
}
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
if url == "" {
fmt.Println("check: no coordinator URL (pass --coordinator-url or set COORDINATOR_URL)")
os.Exit(1)
}
report := agent.RunCheck(ctx, url)
printCheck(report)
if !report.Coordinator.OK || !report.Python.OK || !report.Scimesh.OK {
os.Exit(1)
}
return
}
config, err := loadConfig(*configPath)
if err != nil {
slog.Error("invalid configuration", "error", err)
os.Exit(2)
@@ -42,3 +83,96 @@ func main() {
os.Exit(1)
}
}
// loadConfig prefers a --config file; environment variables override the file
// (see agent.ConfigFile.Config). Without a file, the plain environment path is
// used exactly as before.
func loadConfig(configPath string) (*agent.Config, error) {
if configPath != "" {
return agent.LoadConfigFile(configPath)
}
envPath := os.Getenv("SCIMESH_WORKER_CONFIG")
if envPath != "" {
if _, err := os.Stat(envPath); err == nil {
return agent.LoadConfigFile(envPath)
}
}
return agent.LoadConfig()
}
func printCheck(report agent.CheckReport) {
fmt.Printf("worker-agent %s\n", report.Agent)
line := func(item agent.CheckItem) string {
mark := "✗"
if item.OK {
mark = "✓"
}
detail := item.Detail
if item.Latency > 0 {
detail = fmt.Sprintf("%s (%d ms)", detail, item.Latency)
}
return fmt.Sprintf(" %s %s: %s", mark, item.Name, detail)
}
fmt.Println(line(report.Coordinator))
fmt.Println(line(report.Auth))
fmt.Println(line(report.Python))
fmt.Println(line(report.Scimesh))
}
// runSetup serves the local setup wizard until interrupted. It binds the
// loopback interface only.
func runSetup(args []string) int {
fs := flag.NewFlagSet("worker-agent setup", flag.ContinueOnError)
port := fs.Int("port", 0, "listen port (default 12700)")
noOpen := fs.Bool("no-open", false, "do not open the browser automatically")
if err := fs.Parse(args); err != nil {
return 2
}
logger := slog.New(slog.NewTextHandler(os.Stderr, nil))
ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
defer stop()
server := setupui.New(logger, setupui.Options{
Port: *port,
OpenBrowser: func(url string) {
if *noOpen {
return
}
openBrowser(url)
},
})
listener, err := server.Listen()
if err != nil {
logger.Error("setup wizard could not bind the loopback port", "err", err)
return 1
}
url := "http://" + listener.Addr().String()
logger.Info("SciMesh worker setup wizard", "url", url, "press-ctrl-c-to-stop", true)
server.OpenBrowser(url)
// Block until the signal arrives (never returns an error that matters: a
// cancelled context is the normal exit path).
err = server.Serve(ctx, listener)
if err != nil && err != http.ErrServerClosed {
logger.Error("setup wizard stopped", "err", err)
return 1
}
return 0
}
// openBrowser points the user's default browser at the wizard. Best-effort:
// a missing browser must never fail the setup flow.
func openBrowser(url string) {
for _, candidate := range [][]string{
{"xdg-open", url},
{"open", url},
{"cmd", "/c", "start", url},
} {
binary, err := exec.LookPath(candidate[0])
if err != nil {
continue
}
_ = exec.Command(binary, candidate[1:]...).Start()
return
}
}
+108
View File
@@ -0,0 +1,108 @@
package agent
import (
"context"
"encoding/json"
"fmt"
"net/http"
"os/exec"
"runtime"
"strings"
"time"
)
// CheckItem is one line of the preflight report the setup wizard shows.
type CheckItem struct {
Name string `json:"name"`
OK bool `json:"ok"`
Detail string `json:"detail,omitempty"`
Latency int64 `json:"latency_ms,omitempty"`
}
// CheckReport is the full preflight result of `worker-agent --check` and of
// the wizard's test step.
type CheckReport struct {
Coordinator CheckItem `json:"coordinator"`
Auth CheckItem `json:"auth"`
Python CheckItem `json:"python"`
Scimesh CheckItem `json:"scimesh"`
Agent string `json:"agent_version"`
CoordinatorVersion string `json:"coordinator_version,omitempty"`
}
// checkHTTP runs one GET and reports reachability + latency, with a fallback
// detail message when the server answers without JSON.
func checkHTTP(ctx context.Context, url string, timeout time.Duration) (CheckItem, string) {
started := time.Now()
reqCtx, cancel := context.WithTimeout(ctx, timeout)
defer cancel()
req, err := http.NewRequestWithContext(reqCtx, http.MethodGet, url, nil)
if err != nil {
return CheckItem{Name: "coordinator", OK: false, Detail: "invalid URL"}, ""
}
resp, err := http.DefaultClient.Do(req)
if err != nil {
detail := err.Error()
if strings.Contains(detail, "connection refused") {
detail = "no coordinator answering at this address"
}
return CheckItem{Name: "coordinator", OK: false, Detail: detail}, ""
}
defer func() { _ = resp.Body.Close() }()
version := ""
if resp.StatusCode == http.StatusOK {
var body struct {
Status string `json:"status"`
}
if err := json.NewDecoder(resp.Body).Decode(&body); err == nil && body.Status == "ok" {
return CheckItem{Name: "coordinator", OK: true, Latency: time.Since(started).Milliseconds()}, version
}
}
return CheckItem{Name: "coordinator", OK: false, Detail: fmt.Sprintf("HTTP %d", resp.StatusCode)}, version
}
// CheckCoordinator probes the coordinator's /health endpoint.
func CheckCoordinator(ctx context.Context, url string, timeout time.Duration) CheckReport {
report := CheckReport{Agent: Version}
item, _ := checkHTTP(ctx, strings.TrimRight(url, "/")+"/health", timeout)
report.Coordinator = item
report.Auth = CheckItem{Name: "auth", OK: true, Detail: "no token configured — will be checked at registration"}
return report
}
// CheckEnvironment verifies the local runtime: Python present and the scimesh
// package importable.
func CheckEnvironment(ctx context.Context) CheckReport {
report := CheckReport{Agent: Version}
python, err := exec.LookPath("python3")
if err != nil {
report.Python = CheckItem{Name: "python", OK: false, Detail: "python3 not found on PATH"}
return report
}
report.Python = CheckItem{Name: "python", OK: true, Detail: python}
cmd := exec.CommandContext(ctx, python, "-c", "import scimesh; print(scimesh.__version__ if hasattr(scimesh, '__version__') else 'installed')")
out, err := cmd.Output()
if err != nil {
report.Scimesh = CheckItem{Name: "scimesh", OK: false, Detail: "install with: pip install scimesh"}
return report
}
report.Scimesh = CheckItem{Name: "scimesh", OK: true, Detail: strings.TrimSpace(string(out))}
return report
}
// RunCheck combines the coordinator probe and the local environment probe; it
// is the body behind `worker-agent --check` and the wizard's test step.
func RunCheck(ctx context.Context, coordinatorURL string) CheckReport {
report := CheckCoordinator(ctx, coordinatorURL, 15*time.Second)
env := CheckEnvironment(ctx)
report.Python = env.Python
report.Scimesh = env.Scimesh
return report
}
// Version is the agent build version; main injects it via -ldflags and the
// setup wizard mirrors it into the report. "dev" marks a local build.
var Version = "dev"
// Platform is the host platform string shown on the wizard.
func Platform() string { return runtime.GOOS + "/" + runtime.GOARCH }
+133
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@@ -0,0 +1,133 @@
package agent
import (
"encoding/json"
"fmt"
"os"
"path/filepath"
"strings"
"time"
)
// ConfigFile is the persisted worker configuration written by the setup
// wizard and read back by `worker-agent --config`. Environment variables
// still win: the file fills in what the environment left unset.
type ConfigFile struct {
CoordinatorURL string `json:"coordinator_url"`
Token string `json:"token,omitempty"`
WorkerKey string `json:"worker_key,omitempty"`
UserserviceURL string `json:"userservice_url,omitempty"`
WorkDir string `json:"work_dir"`
WorkerName string `json:"worker_name,omitempty"`
CPUCount int `json:"cpu_count"`
MemoryMB int `json:"memory_mb"`
TaskRunner []string `json:"task_runner,omitempty"`
}
// DefaultConfigPath is where the setup wizard stores the worker's
// configuration. SCIMESH_WORKER_CONFIG overrides it.
func DefaultConfigPath() string {
if raw := os.Getenv("SCIMESH_WORKER_CONFIG"); raw != "" {
return raw
}
home, err := os.UserHomeDir()
if err != nil || home == "" {
return filepath.Join(".", ".scimesh-worker", "config.json")
}
return filepath.Join(home, ".scimesh-worker", "config.json")
}
// LoadConfigFile reads and validates a persisted configuration. The file is
// created by the wizard with 0600 permissions, so no credential is exposed to
// other local users.
func LoadConfigFile(path string) (*Config, error) {
raw, err := os.ReadFile(path)
if err != nil {
return nil, fmt.Errorf("read config file: %w", err)
}
var file ConfigFile
if err := json.Unmarshal(raw, &file); err != nil {
return nil, fmt.Errorf("parse config file: %w", err)
}
return file.Config()
}
// Config turns the file into the daemon configuration. Environment variables
// take precedence so operators can still override any value per-process.
func (f *ConfigFile) Config() (*Config, error) {
config := &Config{}
if env := os.Getenv("COORDINATOR_URL"); env != "" {
config.CoordinatorURL = env
} else {
config.CoordinatorURL = strings.TrimSpace(f.CoordinatorURL)
}
if config.CoordinatorURL == "" {
return nil, fmt.Errorf("coordinator_url is required")
}
if !strings.HasPrefix(config.CoordinatorURL, "http://") && !strings.HasPrefix(config.CoordinatorURL, "https://") {
return nil, fmt.Errorf("coordinator_url must be an absolute HTTP(S) URL")
}
if env := os.Getenv("WORKER_AUTH_TOKEN"); env != "" {
config.Token = env
} else {
config.Token = f.Token
}
if env := os.Getenv("WORKER_KEY"); env != "" {
config.WorkerKey = env
} else {
config.WorkerKey = f.WorkerKey
}
if env := os.Getenv("USERSERVICE_URL"); env != "" {
config.UserserviceURL = env
} else {
config.UserserviceURL = f.UserserviceURL
}
if env := os.Getenv("WORK_DIR"); env != "" {
config.WorkDir = env
} else if f.WorkDir != "" {
config.WorkDir = f.WorkDir
} else {
config.WorkDir = "./scimesh-agent-data"
}
if env := os.Getenv("WORKER_NAME"); env != "" {
config.WorkerName = env
} else {
config.WorkerName = f.WorkerName
}
config.CPUCount = f.CPUCount
if config.CPUCount < 1 {
config.CPUCount = 1
}
config.MemoryMB = f.MemoryMB
if config.MemoryMB < 0 {
config.MemoryMB = 0
}
if len(f.TaskRunner) > 0 {
config.TaskRunner = f.TaskRunner
}
if len(config.TaskRunner) == 0 {
config.TaskRunner = []string{"python", "-m", "scimesh.worker.task"}
}
config.PollInterval = 2 * time.Second
config.RequestTimeout = 30 * time.Second
config.Heartbeat = 15 * time.Second
config.Capabilities = DefaultCapabilities()
return config, nil
}
// Save writes the configuration file, creating the parent directory and
// restricting permissions to the owner.
func SaveConfigFile(path string, file ConfigFile) error {
payload, err := json.MarshalIndent(file, "", " ")
if err != nil {
return err
}
payload = append(payload, '\n')
if err := os.MkdirAll(filepath.Dir(path), 0o700); err != nil {
return fmt.Errorf("create config directory: %w", err)
}
if err := os.WriteFile(path, payload, 0o600); err != nil {
return fmt.Errorf("write config file: %w", err)
}
return nil
}
@@ -0,0 +1,392 @@
// Package setupui serves the local worker setup wizard: a small HTTP server
// bound to 127.0.0.1 that writes the worker's config file, runs preflight
// checks, and starts/stops the worker as a background process. It is part of
// the worker-agent binary so a machine that installs only a worker never needs
// a coordinator.
package setupui
import (
"context"
"embed"
"encoding/json"
"errors"
"fmt"
"io"
"log/slog"
"net"
"net/http"
"os"
"os/exec"
"path/filepath"
"strconv"
"strings"
"sync"
"syscall"
"time"
"github.com/emil28092005/SciMesh/coordinator/internal/agent"
)
//go:embed template.html
var templateFS embed.FS
const (
defaultPort = 12700
pidFileName = "worker.pid"
logFileName = "worker.log"
)
// Supervisor starts and stops the worker process and tracks its pid. It is an
// interface so tests can substitute a fake.
type Supervisor interface {
// Start launches `worker-agent --config <path>` detached, writing output
// into the log file. Returns the child pid.
Start(configPath, logPath string) (int, error)
// Stop terminates the process recorded in the pid file.
Stop() error
// Pid returns the recorded child pid, or 0 when none is recorded.
Pid() int
// Alive reports whether the recorded child is still running.
Alive() bool
}
// PIDSupervisor is the real Supervisor: it spawns the running binary with
// --config and manages its pid file.
type PIDSupervisor struct {
mu sync.Mutex
pidPath string
}
func NewPIDSupervisor(pidPath string) *PIDSupervisor { return &PIDSupervisor{pidPath: pidPath} }
func (s *PIDSupervisor) Pid() int {
s.mu.Lock()
defer s.mu.Unlock()
return s.readPid()
}
func (s *PIDSupervisor) readPid() int {
raw, err := os.ReadFile(s.pidPath)
if err != nil {
return 0
}
pid, err := strconv.Atoi(strings.TrimSpace(string(raw)))
if err != nil || pid < 1 {
return 0
}
return pid
}
func (s *PIDSupervisor) Alive() bool {
pid := s.Pid()
if pid == 0 {
return false
}
// Signal 0 probes liveness without sending anything.
return syscall.Kill(pid, 0) == nil
}
func (s *PIDSupervisor) processAlive(pid int) bool {
return syscall.Kill(pid, 0) == nil
}
func (s *PIDSupervisor) Start(configPath, logPath string) (int, error) {
s.mu.Lock()
defer s.mu.Unlock()
if pid := s.readPid(); pid > 0 {
if s.processAlive(pid) {
return pid, fmt.Errorf("worker is already running (pid %d)", pid)
}
}
exe, err := os.Executable()
if err != nil {
return 0, fmt.Errorf("resolve worker binary: %w", err)
}
logFile, err := os.OpenFile(logPath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0o600)
if err != nil {
return 0, fmt.Errorf("open worker log: %w", err)
}
defer func() { _ = logFile.Close() }()
cmd := exec.Command(exe, "--config", configPath)
cmd.Stdout = logFile
cmd.Stderr = logFile
cmd.Stdin = nil
if err := cmd.Start(); err != nil {
return 0, fmt.Errorf("start worker: %w", err)
}
// The child inherits our stdout/stderr descriptors pointing at the log
// file, so we can close our copy; the child keeps it open.
_ = logFile.Close()
if err := os.WriteFile(s.pidPath, []byte(strconv.Itoa(cmd.Process.Pid)+"\n"), 0o600); err != nil {
_ = cmd.Process.Kill()
return 0, fmt.Errorf("write pid file: %w", err)
}
return cmd.Process.Pid, nil
}
func (s *PIDSupervisor) Stop() error {
s.mu.Lock()
defer s.mu.Unlock()
pid := s.readPid()
if pid == 0 {
return nil
}
proc, err := os.FindProcess(pid)
if err != nil {
_ = os.Remove(s.pidPath)
return nil
}
if err := proc.Signal(os.Interrupt); err != nil {
_ = os.Remove(s.pidPath)
return nil
}
// Give the agent a moment to exit cleanly, then reap.
deadline := time.Now().Add(3 * time.Second)
for time.Now().Before(deadline) {
if !s.processAlive(pid) {
break
}
time.Sleep(100 * time.Millisecond)
}
_ = os.Remove(s.pidPath)
return nil
}
// Server is the wizard HTTP server, bound to the loopback interface only.
type Server struct {
log *slog.Logger
cfgPath string
logPath string
dir string
sup Supervisor
openBrowser func(string)
port int
}
// Options customises the wizard for tests and embedding.
type Options struct {
Port int
ConfigPath string
OpenBrowser func(url string)
Supervisor Supervisor
Dir string // directory for pid/log files; defaults to the config dir
}
func New(log *slog.Logger, opts Options) *Server {
cfgPath := opts.ConfigPath
if cfgPath == "" {
cfgPath = agent.DefaultConfigPath()
}
dir := opts.Dir
if dir == "" {
dir = filepath.Dir(cfgPath)
}
sup := opts.Supervisor
if sup == nil {
sup = NewPIDSupervisor(filepath.Join(dir, pidFileName))
}
open := opts.OpenBrowser
if open == nil {
open = func(string) {}
}
port := opts.Port
if port == 0 {
port = defaultPort
}
return &Server{log: log, cfgPath: cfgPath, logPath: filepath.Join(dir, logFileName), dir: dir, sup: sup, openBrowser: open, port: port}
}
// Listen binds the loopback listener and returns it; Serve runs the server on
// it. Split so tests can inspect the actual ephemeral port.
func (s *Server) Listen() (net.Listener, error) {
return net.Listen("tcp", fmt.Sprintf("127.0.0.1:%d", s.port))
}
// OpenBrowser hands the wizard URL to the configured opener (default: no-op).
func (s *Server) OpenBrowser(url string) { s.openBrowser(url) }
// Serve runs the wizard until ctx is cancelled.
func (s *Server) Serve(ctx context.Context, listener net.Listener) error {
mux := http.NewServeMux()
mux.HandleFunc("GET /", s.handleIndex)
mux.HandleFunc("GET /api/status", s.handleStatus)
mux.HandleFunc("POST /api/config", s.handleSaveConfig)
mux.HandleFunc("POST /api/test", s.handleTest)
mux.HandleFunc("POST /api/start", s.handleStart)
mux.HandleFunc("POST /api/stop", s.handleStop)
mux.HandleFunc("GET /api/logs", s.handleLogs)
server := &http.Server{
Handler: mux,
ReadHeaderTimeout: 10 * time.Second,
}
go func() {
<-ctx.Done()
shutdownCtx, cancel := context.WithTimeout(context.WithoutCancel(ctx), 3*time.Second)
defer cancel()
_ = server.Shutdown(shutdownCtx)
}()
return server.Serve(listener)
}
func (s *Server) handleIndex(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.NotFound(w, r)
return
}
html, err := templateFS.ReadFile("template.html")
if err != nil {
http.Error(w, "template unavailable", http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "text/html; charset=utf-8")
_, _ = w.Write(html)
}
func writeJSON(w http.ResponseWriter, status int, v any) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(status)
_ = json.NewEncoder(w).Encode(v)
}
// statusView is what the wizard needs to paint the running/stopped state.
type statusView struct {
ConfigPresent bool `json:"config_present"`
ConfigPath string `json:"config_path"`
LogPath string `json:"log_path"`
Running bool `json:"running"`
Pid int `json:"pid"`
WorkerName string `json:"worker_name,omitempty"`
Coordinator string `json:"coordinator,omitempty"`
WorkDir string `json:"work_dir,omitempty"`
TokenSet bool `json:"token_set"`
}
func (s *Server) handleStatus(w http.ResponseWriter, r *http.Request) {
view := statusView{ConfigPath: s.cfgPath, LogPath: s.logPath, Running: s.sup.Alive(), Pid: s.sup.Pid()}
if raw, err := os.ReadFile(s.cfgPath); err == nil {
var file agent.ConfigFile
if json.Unmarshal(raw, &file) == nil {
view.ConfigPresent = true
view.WorkerName = file.WorkerName
view.Coordinator = file.CoordinatorURL
view.WorkDir = file.WorkDir
view.TokenSet = file.Token != "" || file.WorkerKey != ""
}
}
writeJSON(w, http.StatusOK, view)
}
type saveConfigRequest struct {
CoordinatorURL string `json:"coordinator_url"`
Token string `json:"token"`
WorkerKey string `json:"worker_key"`
UserserviceURL string `json:"userservice_url"`
WorkDir string `json:"work_dir"`
WorkerName string `json:"worker_name"`
CPUCount int `json:"cpu_count"`
MemoryMB int `json:"memory_mb"`
TaskRunner []string `json:"task_runner"`
}
func (s *Server) handleSaveConfig(w http.ResponseWriter, r *http.Request) {
var req saveConfigRequest
if err := json.NewDecoder(io.LimitReader(r.Body, 1<<20)).Decode(&req); err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid JSON body"})
return
}
file := agent.ConfigFile{
CoordinatorURL: strings.TrimSpace(req.CoordinatorURL),
Token: req.Token,
WorkerKey: req.WorkerKey,
UserserviceURL: strings.TrimSpace(req.UserserviceURL),
WorkDir: strings.TrimSpace(req.WorkDir),
WorkerName: strings.TrimSpace(req.WorkerName),
CPUCount: req.CPUCount,
MemoryMB: req.MemoryMB,
TaskRunner: req.TaskRunner,
}
if file.CoordinatorURL == "" {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "coordinator_url is required"})
return
}
if !strings.HasPrefix(file.CoordinatorURL, "http://") && !strings.HasPrefix(file.CoordinatorURL, "https://") {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "coordinator_url must be an absolute HTTP(S) URL"})
return
}
if file.WorkDir == "" {
file.WorkDir = "./scimesh-agent-data"
}
if file.WorkerName == "" {
if host, err := os.Hostname(); err == nil {
file.WorkerName = host
} else {
file.WorkerName = "worker"
}
}
if file.CPUCount < 1 {
file.CPUCount = 1
}
if err := agent.SaveConfigFile(s.cfgPath, file); err != nil {
s.log.Error("save wizard config", "err", err)
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": "could not write the config file"})
return
}
writeJSON(w, http.StatusOK, map[string]bool{"saved": true})
}
func (s *Server) handleTest(w http.ResponseWriter, r *http.Request) {
var req saveConfigRequest
if err := json.NewDecoder(io.LimitReader(r.Body, 1<<20)).Decode(&req); err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid JSON body"})
return
}
url := strings.TrimSpace(req.CoordinatorURL)
if url == "" {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "coordinator_url is required"})
return
}
report := agent.RunCheck(r.Context(), url)
writeJSON(w, http.StatusOK, report)
}
func (s *Server) handleStart(w http.ResponseWriter, r *http.Request) {
if _, err := os.Stat(s.cfgPath); err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "no configuration saved yet"})
return
}
pid, err := s.sup.Start(s.cfgPath, s.logPath)
if err != nil {
writeJSON(w, http.StatusConflict, map[string]string{"error": err.Error()})
return
}
writeJSON(w, http.StatusOK, map[string]int{"pid": pid})
}
func (s *Server) handleStop(w http.ResponseWriter, r *http.Request) {
if err := s.sup.Stop(); err != nil {
writeJSON(w, http.StatusConflict, map[string]string{"error": err.Error()})
return
}
writeJSON(w, http.StatusOK, map[string]bool{"stopped": true})
}
func (s *Server) handleLogs(w http.ResponseWriter, r *http.Request) {
raw, err := os.ReadFile(s.logPath)
if err != nil {
writeJSON(w, http.StatusOK, map[string]string{"log": ""})
return
}
lines := strings.Split(strings.TrimRight(string(raw), "\n"), "\n")
tail := 200
if n, err := strconv.Atoi(r.URL.Query().Get("tail")); err == nil && n > 0 && n < 5000 {
tail = n
}
if len(lines) > tail {
lines = lines[len(lines)-tail:]
}
writeJSON(w, http.StatusOK, map[string]string{"log": strings.Join(lines, "\n")})
}
// ErrCanceled mirrors context.Canceled for callers that treat a cancelled
// wizard as a clean exit.
var ErrCanceled = errors.New("setup wizard cancelled")
@@ -0,0 +1,272 @@
package setupui
import (
"context"
"encoding/json"
"io"
"log/slog"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"strings"
"sync"
"testing"
"time"
"github.com/emil28092005/SciMesh/coordinator/internal/agent"
)
func testLogger() *slog.Logger {
return slog.New(slog.NewTextHandler(io.Discard, nil))
}
func newTestServer(t *testing.T, sup Supervisor) (*Server, string) {
t.Helper()
dir := t.TempDir()
server := New(testLogger(), Options{
ConfigPath: filepath.Join(dir, "config.json"),
Dir: dir,
Supervisor: sup,
OpenBrowser: func(string) {},
})
listener, err := server.Listen()
if err != nil {
t.Fatal(err)
}
t.Cleanup(func() { _ = listener.Close() })
ctx, cancel := context.WithCancel(context.Background())
t.Cleanup(cancel)
go func() { _ = server.Serve(ctx, listener) }()
return server, "http://" + listener.Addr().String()
}
type fakeSup struct {
mu sync.Mutex
started bool
stopped bool
pid int
alive bool
}
func (f *fakeSup) Start(configPath, logPath string) (int, error) {
f.mu.Lock()
defer f.mu.Unlock()
f.started = true
f.alive = true
f.pid = 4242
return f.pid, nil
}
func (f *fakeSup) Stop() error {
f.mu.Lock()
defer f.mu.Unlock()
f.stopped = true
f.alive = false
return nil
}
func (f *fakeSup) Pid() int { f.mu.Lock(); defer f.mu.Unlock(); return f.pid }
func (f *fakeSup) Alive() bool {
f.mu.Lock()
defer f.mu.Unlock()
return f.alive
}
func postJSON(t *testing.T, base, path string, body any) (*httptest.ResponseRecorder, map[string]any) {
t.Helper()
req, err := http.NewRequest(http.MethodPost, base+path, strings.NewReader(mustJSON(t, body)))
if err != nil {
t.Fatal(err)
}
req.Header.Set("Content-Type", "application/json")
client := http.Client{}
resp, err := client.Do(req)
if err != nil {
t.Fatal(err)
}
defer func() { _ = resp.Body.Close() }()
rec := httptest.NewRecorder()
rec.Code = resp.StatusCode
data := map[string]any{}
_ = json.NewDecoder(resp.Body).Decode(&data)
return rec, data
}
func mustJSON(t *testing.T, v any) string {
t.Helper()
raw, err := json.Marshal(v)
if err != nil {
t.Fatal(err)
}
return string(raw)
}
func TestWizardSavesConfigWithStrictPermissions(t *testing.T) {
sup := &fakeSup{}
server, base := newTestServer(t, sup)
rec, _ := postJSON(t, base, "/api/config", map[string]any{
"coordinator_url": "http://192.168.1.10:8080",
"token": "sm_live_secret",
"work_dir": "/home/emil/scimesh-worker",
"worker_name": "emil-laptop",
"cpu_count": 8,
"memory_mb": 16384,
})
if rec.Code != http.StatusOK {
t.Fatalf("save config: got %d, want 200", rec.Code)
}
info, err := os.Stat(server.cfgPath)
if err != nil {
t.Fatal(err)
}
if perm := info.Mode().Perm(); perm != 0o600 {
t.Errorf("config perms = %o, want 600", perm)
}
config, err := agent.LoadConfigFile(server.cfgPath)
if err != nil {
t.Fatal(err)
}
if config.CoordinatorURL != "http://192.168.1.10:8080" || config.Token != "sm_live_secret" || config.WorkDir != "/home/emil/scimesh-worker" || config.WorkerName != "emil-laptop" {
t.Errorf("config = %+v", config)
}
if config.CPUCount != 8 || config.MemoryMB != 16384 {
t.Errorf("resources: cpu=%d mem=%d", config.CPUCount, config.MemoryMB)
}
}
func TestWizardRejectsInvalidConfig(t *testing.T) {
sup := &fakeSup{}
_, base := newTestServer(t, sup)
for _, body := range []map[string]any{
{"coordinator_url": "", "token": "x"},
{"coordinator_url": "not-a-url", "token": "x"},
} {
rec, _ := postJSON(t, base, "/api/config", body)
if rec.Code != http.StatusBadRequest {
t.Errorf("body %v: got %d, want 400", body, rec.Code)
}
}
}
func TestWizardStartStopLifecycle(t *testing.T) {
sup := &fakeSup{}
_, base := newTestServer(t, sup)
// Starting without a saved config is rejected.
rec, _ := postJSON(t, base, "/api/start", map[string]any{})
if rec.Code != http.StatusBadRequest {
t.Errorf("start without config: got %d, want 400", rec.Code)
}
postJSON(t, base, "/api/config", map[string]any{
"coordinator_url": "http://127.0.0.1:8080", "token": "t", "work_dir": ".",
})
rec, data := postJSON(t, base, "/api/start", map[string]any{})
if rec.Code != http.StatusOK || int(data["pid"].(float64)) != 4242 {
t.Errorf("start: got %d %v, want 200 pid 4242", rec.Code, data)
}
if !sup.started {
t.Error("supervisor never started the worker")
}
// Status reflects the running state.
req, _ := http.NewRequest(http.MethodGet, base+"/api/status", nil)
resp, err := http.DefaultClient.Do(req)
if err != nil {
t.Fatal(err)
}
defer func() { _ = resp.Body.Close() }()
var status map[string]any
_ = json.NewDecoder(resp.Body).Decode(&status)
if status["running"] != true || status["pid"] != float64(4242) {
t.Errorf("status = %v, want running pid 4242", status)
}
rec, _ = postJSON(t, base, "/api/stop", map[string]any{})
if rec.Code != http.StatusOK || !sup.stopped {
t.Errorf("stop: got %d stopped=%v, want 200/true", rec.Code, sup.stopped)
}
}
func TestWizardStatusPrefillsSavedConfig(t *testing.T) {
sup := &fakeSup{}
_, base := newTestServer(t, sup)
postJSON(t, base, "/api/config", map[string]any{
"coordinator_url": "http://10.0.0.5:8080", "worker_key": "smk_abc", "work_dir": "/w", "worker_name": "n1",
})
req, _ := http.NewRequest(http.MethodGet, base+"/api/status", nil)
resp, err := http.DefaultClient.Do(req)
if err != nil {
t.Fatal(err)
}
defer func() { _ = resp.Body.Close() }()
var status struct {
ConfigPresent bool `json:"config_present"`
WorkerName string `json:"worker_name"`
Coordinator string `json:"coordinator"`
TokenSet bool `json:"token_set"`
}
_ = json.NewDecoder(resp.Body).Decode(&status)
if !status.ConfigPresent || status.WorkerName != "n1" || status.Coordinator != "http://10.0.0.5:8080" || !status.TokenSet {
t.Errorf("status = %+v", status)
}
// The secret must never appear in the status projection.
if strings.Contains(strings.ToLower(mustJSON(t, status)), "smk_abc") {
t.Error("status leaks the worker key")
}
}
func TestCheckCoordinatorReachable(t *testing.T) {
stub := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path == "/health" {
_, _ = w.Write([]byte(`{"status":"ok"}`))
return
}
http.NotFound(w, r)
}))
defer stub.Close()
report := agent.CheckCoordinator(context.Background(), stub.URL, 5*time.Second)
if !report.Coordinator.OK {
t.Errorf("coordinator check = %+v, want ok", report.Coordinator)
}
}
func TestCheckCoordinatorUnreachable(t *testing.T) {
report := agent.CheckCoordinator(context.Background(), "http://127.0.0.1:1", 2*time.Second)
if report.Coordinator.OK {
t.Error("unreachable coordinator reported ok")
}
}
func TestConfigFileDefaultsAndEnvOverride(t *testing.T) {
dir := t.TempDir()
path := filepath.Join(dir, "config.json")
file := agent.ConfigFile{
CoordinatorURL: "http://coord:8080",
Token: "file-token",
WorkDir: "/w",
CPUCount: 4,
}
if err := agent.SaveConfigFile(path, file); err != nil {
t.Fatal(err)
}
t.Setenv("COORDINATOR_URL", "http://env:9090")
t.Setenv("WORKER_AUTH_TOKEN", "")
config, err := agent.LoadConfigFile(path)
if err != nil {
t.Fatal(err)
}
if config.CoordinatorURL != "http://env:9090" {
t.Errorf("env must win: %s", config.CoordinatorURL)
}
if config.Token != "file-token" {
t.Errorf("token = %q, want the file value", config.Token)
}
if config.CPUCount != 4 {
t.Errorf("cpu = %d", config.CPUCount)
}
}
@@ -0,0 +1,310 @@
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>SciMesh Worker · Setup</title>
<style>
:root{--bg:#0b0e13;--panel:#11151d;--panel-2:#161c27;--border:#1f2634;--border-soft:#181f2b;--text:#e9ecf3;--text-2:#98a2b5;--text-3:#5d6879;--accent:#5b8cff;--accent-soft:#5b8cff1f;--accent-strong:#3f6fe0;--green:#3fce8a;--green-soft:#3fce8a1a;--amber:#e5b64f;--amber-soft:#e5b64f1a;--red:#f2647c;--red-soft:#f2647c1a;--mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,monospace;color-scheme:dark}
*{box-sizing:border-box;margin:0;padding:0}
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button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit;color:var(--text);background:var(--panel-2);border:1px solid var(--border);border-radius:9px;padding:10px 13px;width:100%;outline:none;transition:border-color .12s,box-shadow .12s}
input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
input::placeholder{color:var(--text-3)}
code{font-family:var(--mono);font-size:.86em}
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.brand-mark svg{width:18px;height:18px;stroke:#fff}
.brand-name{font-weight:700;font-size:16px;letter-spacing:-.01em}
.brand-name span{color:var(--text-3);font-weight:500}
.tagline{text-align:center;color:var(--text-3);font-size:12.5px;margin-bottom:34px}
.tagline code{color:var(--text-2)}
.steps{display:flex;align-items:center;justify-content:center;gap:0;margin-bottom:30px}
.step{display:flex;flex-direction:column;align-items:center;gap:7px;width:96px}
.step-dot{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;border:1.5px solid var(--border);background:var(--panel);color:var(--text-3);font-size:12.5px;font-weight:700;transition:all .2s}
.step-label{font-size:11px;font-weight:600;color:var(--text-3);letter-spacing:.02em}
.step.active .step-dot{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);box-shadow:0 0 0 4px #5b8cff14}
.step.active .step-label{color:var(--text)}
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.step-line{flex:1;max-width:44px;height:1.5px;background:var(--border);margin:0 6px 22px;position:relative;overflow:hidden}
.step-line.done:after{content:"";position:absolute;inset:0;background:var(--green)}
.card{background:var(--panel);border:1px solid var(--border-soft);border-radius:15px;padding:26px 28px;box-shadow:0 24px 60px #0000004d}
.card h1{font-size:18px;font-weight:700;letter-spacing:-.02em;margin-bottom:4px}
.card .sub{color:var(--text-2);font-size:13px;margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:12px;font-weight:650;letter-spacing:.04em;text-transform:uppercase;color:var(--text-3);margin-bottom:7px}
.field .hint{margin-top:6px;font-size:12px;color:var(--text-3)}
.field .hint code{color:var(--text-2)}
.radio-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.radio-card{border:1px solid var(--border);border-radius:11px;padding:13px 14px;cursor:pointer;transition:all .13s;background:var(--panel-2)}
.radio-card:hover{border-color:#2a3446}
.radio-card.sel{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 0 0 3px #5b8cff14}
.radio-card b{display:flex;align-items:center;gap:8px;font-size:13.5px}
.radio-card b svg{width:15px;height:15px;stroke:var(--accent)}
.radio-card p{margin-top:4px;font-size:12px;color:var(--text-2)}
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.check-ic svg{width:13px;height:13px;stroke-width:2.6}
.check-ok{background:var(--green-soft)}.check-ok svg{stroke:var(--green)}
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.actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:24px}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:9px;padding:10px 18px;font-weight:650;font-size:13.5px;border:1px solid transparent;transition:all .13s}
.btn svg{width:15px;height:15px;stroke:currentColor}
.btn-primary{background:var(--accent);color:#0a1222}
.btn-primary:hover{background:var(--accent-strong);color:#fff}
.btn-ghost{border-color:var(--border);color:var(--text-2);background:var(--panel-2)}
.btn-ghost:hover{color:var(--text);border-color:#2a3446}
.btn-danger{background:var(--red-soft);color:var(--red)}
.btn-lg{padding:12px 24px;font-size:14.5px;border-radius:10px}
.link{color:var(--text-3);font-size:13px}
.link:hover{color:var(--text)}
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.pulse:after{content:"";position:absolute;inset:-5px;border-radius:50%;border:2px solid var(--green);opacity:.5;animation:ping 1.6s ease-out infinite}
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.stat b{display:block;font-size:20px;font-weight:700;letter-spacing:-.02em}
.stat span{font-size:11px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--text-3)}
.stat.bad b{color:var(--red)}
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.chip svg{width:12px;height:12px;stroke:var(--text-3)}
.wizard-page{display:none}.wizard-page.active{display:block;animation:fade .18s ease}
@keyframes fade{from{opacity:0;transform:translateY(5px)}to{opacity:1}}
.error-strip{background:var(--red-soft);border:1px solid #f2647c33;border-radius:9px;padding:9px 12px;font-size:12.5px;color:#ffb3c0;margin-bottom:14px}
.spinner{display:inline-block;width:13px;height:13px;border:2px solid var(--text-3);border-top-color:transparent;border-radius:50%;animation:spin .7s linear infinite;vertical-align:-2px;margin-right:7px}
@keyframes spin{to{transform:rotate(360deg)}}
.checks{padding-bottom:6px}
</style>
</head>
<body>
<div class="shell">
<div class="brand">
<div class="brand-mark"><svg viewBox="0 0 24 24" fill="none" stroke-width="2" stroke-linecap="round"><circle cx="6" cy="6" r="2.4"/><circle cx="18" cy="7" r="2.4"/><circle cx="12" cy="17" r="2.4"/><path d="M8 7.5l7.6-1M7 8.3l3.7 6.5M16.6 9.2l-3.2 5.6"/></svg></div>
<div class="brand-name">SciMesh <span>· Worker setup</span></div>
</div>
<p class="tagline">Local wizard served by <code>worker-agent setup</code> · <code>127.0.0.1</code></p>
<!-- ═══ WIZARD VIEW ═══ -->
<div id="view-wizard">
<div class="steps" id="steps">
<div class="step active" id="st1"><div class="step-dot">1</div><div class="step-label">Connect</div></div>
<div class="step-line" id="sl1"></div>
<div class="step" id="st2"><div class="step-dot">2</div><div class="step-label">Machine</div></div>
<div class="step-line" id="sl2"></div>
<div class="step" id="st3"><div class="step-dot">3</div><div class="step-label">Check</div></div>
<div class="step-line" id="sl3"></div>
<div class="step" id="st4"><div class="step-dot">4</div><div class="step-label">Run</div></div>
</div>
<div id="error-box"></div>
<!-- step 1: connect -->
<div class="wizard-page active" id="wp1">
<div class="card">
<h1>Connect to a coordinator</h1>
<p class="sub">The coordinator hands out work and collects results. Ask your cluster admin for its address.</p>
<div class="field"><label>Coordinator URL</label><input id="in-url" placeholder="http://192.168.1.10:8080"><p class="hint">For a served instance this is the address printed by <code>coordinator serve</code>.</p></div>
<div class="field"><label>Authentication</label>
<div class="radio-grid" id="auth-grid">
<div class="radio-card sel" data-mode="token"><b><svg viewBox="0 0 24 24" fill="none" stroke-width="2"><rect x="4" y="10" width="16" height="10" rx="2"/><path d="M8 10V7a4 4 0 0 1 8 0v3"/></svg>Cluster token</b><p>Serve instances: one token for every worker.</p></div>
<div class="radio-card" data-mode="key"><b><svg viewBox="0 0 24 24" fill="none" stroke-width="2"><circle cx="8" cy="14" r="4"/><path d="M10.8 11.2L20 2M15 4l3 3"/></svg>Worker key</b><p>Shared clusters: a key tied to your account.</p></div>
</div>
</div>
<div class="field" id="token-field"><label>Token</label><input id="in-token" type="password" placeholder="paste the token from coordinator token"><p class="hint">The admin can copy it from <code>coordinator token</code> on the server.</p></div>
<div class="field" id="key-field" style="display:none"><label>Worker key + userservice URL</label><input id="in-key" type="password" placeholder="smk_…"><input id="in-users" placeholder="http://userservice-host:8081" style="margin-top:8px"><p class="hint">Create a key in the coordinator UI: Users → worker keys.</p></div>
<div class="actions"><span class="link" id="l1">Step 1 of 4</span><button class="btn btn-primary" id="b1">Continue →</button></div>
</div>
</div>
<!-- step 2: machine -->
<div class="wizard-page" id="wp2">
<div class="card">
<h1>This machine</h1>
<p class="sub">Where tasks run and how the machine appears in the cluster.</p>
<div class="field"><label>Worker name</label><input id="in-name" placeholder="auto-detected"><p class="hint">Shown in the coordinators worker list.</p></div>
<div class="field"><label>Work directory</label><input id="in-dir" placeholder="./scimesh-agent-data"><p class="hint">Datasets and shard results live here. ~1 GB free space recommended.</p></div>
<div class="field"><label>Compute resources advertised</label>
<div class="radio-grid">
<div class="radio-card sel" data-cpu="auto"><b>Auto</b><p>Detect the machines CPU count.</p></div>
<div class="radio-card" data-cpu="custom"><b>Custom…</b><p>Limit what this machine advertises.</p></div>
</div>
</div>
<div class="field" id="cpu-field" style="display:none"><label>CPU count</label><input id="in-cpu" type="number" min="1" value="1"></div>
<div class="actions"><button class="btn btn-ghost" id="b2b">← Back</button><button class="btn btn-primary" id="b2">Continue →</button></div>
</div>
</div>
<!-- step 3: preflight -->
<div class="wizard-page" id="wp3">
<div class="card">
<h1>Preflight check</h1>
<p class="sub">Making sure this machine can reach the coordinator and run SciMesh workloads.</p>
<div class="checks" id="checks"></div>
<div class="actions"><button class="btn btn-ghost" id="b3b">← Back</button><button class="btn btn-primary" id="b3" disabled>Continue anyway →</button></div>
</div>
</div>
<!-- step 4: run -->
<div class="wizard-page" id="wp4">
<div class="card" style="text-align:center;padding:40px 28px">
<div class="brand-mark" style="margin:0 auto 18px;width:46px;height:46px;border-radius:13px"><svg viewBox="0 0 24 24" fill="none" stroke-width="2" stroke-linecap="round" style="width:22px;height:22px"><path d="M6 4l14 8-14 8V4z"/></svg></div>
<h1 style="font-size:20px">Ready to join the cluster</h1>
<p class="sub" style="max-width:380px;margin:8px auto 26px">Configuration will be saved and the worker started as a background process.</p>
<div class="actions" style="justify-content:space-between;margin-top:30px"><button class="btn btn-ghost" id="b4b">← Back</button><button class="btn btn-primary btn-lg" id="b4">Start worker</button></div>
</div>
</div>
</div>
<!-- ═══ STATUS VIEW ═══ -->
<div id="view-status" style="display:none">
<div class="card">
<div class="status-head">
<div class="pulse" id="st-pulse"></div>
<div><h1 id="st-title">Worker is working</h1><div class="sub" id="st-sub"></div></div>
<button class="btn btn-danger" id="st-stop" style="margin-left:auto"><svg viewBox="0 0 24 24" fill="none" stroke-width="2"><rect x="6" y="6" width="12" height="12" rx="2"/></svg>Stop</button>
</div>
<div class="meta-line" id="st-meta"></div>
<div class="logbox" id="st-log"></div>
<div class="actions"><span class="link" id="st-cfg"></span><button class="btn btn-ghost" id="st-reconfig">Reconfigure…</button></div>
</div>
</div>
</div>
<script>
const $=id=>document.getElementById(id);
let state={mode:'token',cpu:'auto'};
let checksOk=false;
function err(msg){$('error-box').innerHTML=msg?'<div class="error-strip">'+msg+'</div>':''}
function goto(n){
['wp1','wp2','wp3','wp4'].forEach((id,i)=>$(id).classList.toggle('active',i===n-1));
for(let i=1;i<=4;i++){
const st=$('st'+i);
st.classList.toggle('done',i<n);st.classList.toggle('active',i===n);
st.querySelector('.step-dot').textContent=i<n?'✓':i;
if(i<4)$('sl'+i).classList.toggle('done',i<n);
}
err('');
}
document.querySelectorAll('#auth-grid .radio-card').forEach(c=>c.addEventListener('click',()=>{
document.querySelectorAll('#auth-grid .radio-card').forEach(x=>x.classList.remove('sel'));
c.classList.add('sel');state.mode=c.dataset.mode;
$('token-field').style.display=state.mode==='token'?'':'none';
$('key-field').style.display=state.mode==='key'?'':'none';
}));
document.querySelectorAll('#wp2 .radio-card').forEach(c=>c.addEventListener('click',()=>{
c.parentElement.querySelectorAll('.radio-card').forEach(x=>x.classList.remove('sel'));
c.classList.add('sel');state.cpu=c.dataset.cpu;
$('cpu-field').style.display=state.cpu==='custom'?'':'none';
}));
async function postJSON(path,body){
const r=await fetch(path,{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify(body)});
const data=await r.json().catch(()=>({}));
return {status:r.status,data};
}
function draftConfig(){
return {
coordinator_url:$('in-url').value.trim(),
token:state.mode==='token'?$('in-token').value.trim():'',
worker_key:state.mode==='key'?$('in-key').value.trim():'',
userservice_url:state.mode==='key'?$('in-users').value.trim():'',
work_dir:$('in-dir').value.trim(),
worker_name:$('in-name').value.trim(),
cpu_count:state.cpu==='custom'?parseInt($('in-cpu').value||'1',10):0
};
}
$('b1').onclick=()=>{
const c=draftConfig();
if(!c.coordinator_url){err('Enter the coordinator URL.');return}
if(state.mode==='token'&&!c.token){err('Enter the cluster token.');return}
if(state.mode==='key'&&!c.worker_key){err('Enter the worker key.');return}
goto(2);
};
$('b2b').onclick=()=>goto(1);
$('b2').onclick=()=>{goto(3);runChecks()};
$('b3b').onclick=()=>goto(2);
$('b3').onclick=()=>goto(4);
$('b4b').onclick=()=>goto(3);
$('b4').onclick=async()=>{
const c=draftConfig();
const r=await postJSON('/api/config',c);
if(r.status!==200){err('Could not save the configuration: '+(r.data.error||'unknown error'));return}
const s=await postJSON('/api/start',{});
if(s.status!==200){err('Could not start the worker: '+(s.data.error||'unknown error'));return}
showStatus();
};
const checkRow=(name,ok,detail,ms)=>
'<div class="check-row"><div class="check-ic '+(ok===null?'check-wait':ok?'check-ok':'check-bad')+'"><svg viewBox="0 0 24 24" fill="none" stroke-linecap="round">'+(ok===null?'<path d="M12 7v5l3 3"/>':ok?'<path d="M4 12l5 5L20 6"/>':'<path d="M6 6l12 12M18 6L6 18"/>')+'</svg></div><div><b>'+name+'</b><span>'+(detail||'')+'</span></div>'+(ms?'<span class="ms">'+ms+' ms</span>':'')+'</div>';
async function runChecks(){
const box=$('checks');
box.innerHTML=checkRow('Coordinator reachable','',null,null)+checkRow('Python 3','',null,null)+checkRow('scimesh package','',null,null);
const r=await postJSON('/api/test',draftConfig());
box.innerHTML='';
checksOk=true;
const items=[r.data.coordinator,r.data.python,r.data.scimesh];
for(const item of items){
if(item&&!item.ok)checksOk=false;
box.insertAdjacentHTML('beforeend',checkRow(item?item.name:'?',item?item.ok:null,item?item.detail:'',item?item.latency_ms:null));
}
$('b3').disabled=!checksOk;
}
async function showStatus(){
$('view-wizard').style.display='none';
$('view-status').style.display='block';
await refreshStatus();
setInterval(refreshStatus,2000);
}
async function refreshStatus(){
const r=await fetch('/api/status');
if(!r.ok)return;
const v=await r.json();
$('st-pulse').style.background=v.running?'var(--green)':'var(--text-3)';
$('st-pulse').style.animation=v.running?'':'none';
$('st-title').textContent=v.running?(v.worker_name||'Worker')+' is working':(v.worker_name||'Worker')+' is stopped';
$('st-sub').textContent='pid '+(v.pid||'—')+' · config '+(v.config_present?v.config_path:'not saved yet');
$('st-cfg').textContent='Configuration: '+(v.config_present?v.config_path:'—');
const meta=$('st-meta');
meta.innerHTML='';
if(v.coordinator){const c=document.createElement('span');c.className='chip';c.innerHTML='<svg viewBox="0 0 24 24" fill="none" stroke-width="2"><circle cx="12" cy="12" r="9"/></svg>'+v.coordinator;meta.append(c)}
if(v.work_dir){const d=document.createElement('span');d.className='chip';d.innerHTML='<svg viewBox="0 0 24 24" fill="none" stroke-width="2"><path d="M4 6h16M4 12h16M4 18h16"/></svg>'+v.work_dir;meta.append(d)}
if(!v.token_set){const t=document.createElement('span');t.className='chip';t.style.color='var(--amber)';t.textContent='no credential set';meta.append(t)}
const logs=await fetch('/api/logs?tail=200');
const lv=await logs.json();
$('st-log').textContent=lv.log||'(no log yet — the worker writes here once started)';
}
$('st-stop').onclick=async()=>{await postJSON('/api/stop',{});refreshStatus()};
$('st-reconfig').onclick=()=>{
$('view-status').style.display='none';
$('view-wizard').style.display='block';
goto(1);
};
// Prefill from a saved configuration, then decide which view to show.
(async()=>{
const r=await fetch('/api/status');
const v=await r.json();
if(v.config_present){
$('in-url').value=v.coordinator||'';
$('in-dir').value=v.work_dir||'';
$('in-name').value=v.worker_name||'';
}
if(v.running)showStatus();
})();
</script>
</body>
</html>