// The power module's Go bundle (novox/hq ADR 0211, ADR 0198): one process the node's runtime
// launches, serving the module's tools over MCP on stdio and running its watcher beside them, which
// publishes the machine's power states on the bus.
//
// Started as `power draw` it is the module's other process instead: the sampler that publishes the
// power the machine draws for the bar, as root, because the energy counter is root's (draw.go).
package main

import (
	"context"
	"fmt"
	"os"
	"os/signal"
	"syscall"

	stdio "git.novox.be/novox/mesh-sdk/go"
)

func main() {
	if len(os.Args) > 1 {
		if os.Args[1] != "draw" || len(os.Args) != 2 {
			fmt.Fprintln(os.Stderr, "usage: power [draw]")
			os.Exit(2)
		}
		ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGTERM, os.Interrupt)
		defer stop()
		if err := RunDraw(ctx, Here()); err != nil {
			fmt.Fprintln(os.Stderr, err)
			os.Exit(1)
		}
		return
	}
	m := Here()
	w := NewWatcher(m, func(eventType string, body any) error { return stdio.Emit(eventType, body) }, DialLogin1)
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()
	go w.Run(ctx)
	// And the power drawn, from the module's own sampler onto the bus (novox/hq ADR 0260).
	go ShareDraw(m)
	if err := stdio.Serve("", Tools(m, w)); err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
}