// Command minimal demonstrates executus's standalone core primitives available
// today (P0): the config seam + bounded fan-out. The full zero-config "agentic
// in ~12 lines" example arrives once the model, tool, and run packages land
// (P1–P3).
package main

import (
	"context"
	"fmt"

	"gitea.stevedudenhoeffer.com/steve/executus/config"
	"gitea.stevedudenhoeffer.com/steve/executus/fanout"
)

func main() {
	cfg := config.Env("EXECUTUS_") // e.g. EXECUTUS_FANOUT_MAX_CONCURRENT=8
	max := cfg.Int("fanout.max_concurrent", 4)

	items := []string{"alpha", "beta", "gamma", "delta"}
	results := fanout.Run(context.Background(), items,
		fanout.Options[string]{MaxConcurrent: max},
		func(_ context.Context, s string) (int, error) { return len(s), nil })

	for _, r := range results {
		fmt.Printf("%-6s -> %d (err=%v)\n", items[r.Index], r.Value, r.Err)
	}
}