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package api
import (
"context"
"encoding/json"
"fmt"
"log/slog"
"net/http"
"time"
"github.com/thepeterstone/claudomator/internal/executor"
"github.com/thepeterstone/claudomator/internal/storage"
"github.com/thepeterstone/claudomator/internal/task"
"github.com/google/uuid"
)
// Server provides the REST API and WebSocket endpoint for Claudomator.
type Server struct {
store *storage.DB
pool *executor.Pool
hub *Hub
logger *slog.Logger
mux *http.ServeMux
}
func NewServer(store *storage.DB, pool *executor.Pool, logger *slog.Logger) *Server {
s := &Server{
store: store,
pool: pool,
hub: NewHub(),
logger: logger,
mux: http.NewServeMux(),
}
s.routes()
return s
}
func (s *Server) Handler() http.Handler {
return corsMiddleware(s.mux)
}
func (s *Server) StartHub() {
go s.hub.Run()
go s.forwardResults()
}
func (s *Server) routes() {
s.mux.HandleFunc("POST /api/tasks", s.handleCreateTask)
s.mux.HandleFunc("GET /api/tasks", s.handleListTasks)
s.mux.HandleFunc("GET /api/tasks/{id}", s.handleGetTask)
s.mux.HandleFunc("POST /api/tasks/{id}/run", s.handleRunTask)
s.mux.HandleFunc("GET /api/tasks/{id}/executions", s.handleListExecutions)
s.mux.HandleFunc("GET /api/executions/{id}", s.handleGetExecution)
s.mux.HandleFunc("GET /api/ws", s.handleWebSocket)
s.mux.HandleFunc("GET /api/health", s.handleHealth)
}
// forwardResults listens on the executor pool's result channel and broadcasts via WebSocket.
func (s *Server) forwardResults() {
for result := range s.pool.Results() {
event := map[string]interface{}{
"type": "task_completed",
"task_id": result.TaskID,
"status": result.Execution.Status,
"exit_code": result.Execution.ExitCode,
"cost_usd": result.Execution.CostUSD,
"error": result.Execution.ErrorMsg,
"timestamp": time.Now().UTC(),
}
data, _ := json.Marshal(event)
s.hub.Broadcast(data)
}
}
func (s *Server) handleHealth(w http.ResponseWriter, r *http.Request) {
writeJSON(w, http.StatusOK, map[string]string{"status": "ok"})
}
func (s *Server) handleCreateTask(w http.ResponseWriter, r *http.Request) {
var input struct {
Name string `json:"name"`
Description string `json:"description"`
Claude task.ClaudeConfig `json:"claude"`
Timeout string `json:"timeout"`
Priority string `json:"priority"`
Tags []string `json:"tags"`
}
if err := json.NewDecoder(r.Body).Decode(&input); err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid JSON: " + err.Error()})
return
}
now := time.Now().UTC()
t := &task.Task{
ID: uuid.New().String(),
Name: input.Name,
Description: input.Description,
Claude: input.Claude,
Priority: task.Priority(input.Priority),
Tags: input.Tags,
DependsOn: []string{},
Retry: task.RetryConfig{MaxAttempts: 1, Backoff: "exponential"},
State: task.StatePending,
CreatedAt: now,
UpdatedAt: now,
}
if t.Priority == "" {
t.Priority = task.PriorityNormal
}
if t.Tags == nil {
t.Tags = []string{}
}
if input.Timeout != "" {
dur, err := time.ParseDuration(input.Timeout)
if err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid timeout: " + err.Error()})
return
}
t.Timeout.Duration = dur
}
if err := task.Validate(t); err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": err.Error()})
return
}
if err := s.store.CreateTask(t); err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
writeJSON(w, http.StatusCreated, t)
}
func (s *Server) handleListTasks(w http.ResponseWriter, r *http.Request) {
filter := storage.TaskFilter{}
if state := r.URL.Query().Get("state"); state != "" {
filter.State = task.State(state)
}
tasks, err := s.store.ListTasks(filter)
if err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
if tasks == nil {
tasks = []*task.Task{}
}
writeJSON(w, http.StatusOK, tasks)
}
func (s *Server) handleGetTask(w http.ResponseWriter, r *http.Request) {
id := r.PathValue("id")
t, err := s.store.GetTask(id)
if err != nil {
writeJSON(w, http.StatusNotFound, map[string]string{"error": "task not found"})
return
}
writeJSON(w, http.StatusOK, t)
}
func (s *Server) handleRunTask(w http.ResponseWriter, r *http.Request) {
id := r.PathValue("id")
t, err := s.store.GetTask(id)
if err != nil {
writeJSON(w, http.StatusNotFound, map[string]string{"error": "task not found"})
return
}
if err := s.store.UpdateTaskState(id, task.StateQueued); err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
t.State = task.StateQueued
if err := s.pool.Submit(context.Background(), t); err != nil {
writeJSON(w, http.StatusServiceUnavailable, map[string]string{"error": fmt.Sprintf("executor pool: %v", err)})
return
}
writeJSON(w, http.StatusAccepted, map[string]string{
"message": "task queued for execution",
"task_id": id,
})
}
func (s *Server) handleListExecutions(w http.ResponseWriter, r *http.Request) {
taskID := r.PathValue("id")
execs, err := s.store.ListExecutions(taskID)
if err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
if execs == nil {
execs = []*storage.Execution{}
}
writeJSON(w, http.StatusOK, execs)
}
func (s *Server) handleGetExecution(w http.ResponseWriter, r *http.Request) {
id := r.PathValue("id")
exec, err := s.store.GetExecution(id)
if err != nil {
writeJSON(w, http.StatusNotFound, map[string]string{"error": "execution not found"})
return
}
writeJSON(w, http.StatusOK, exec)
}
func writeJSON(w http.ResponseWriter, status int, v interface{}) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(status)
json.NewEncoder(w).Encode(v)
}
func corsMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Access-Control-Allow-Origin", "*")
w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Authorization")
if r.Method == "OPTIONS" {
w.WriteHeader(http.StatusOK)
return
}
next.ServeHTTP(w, r)
})
}
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