package main

import (
	"encoding/json"
	"fmt"
	"os"

	flag "github.com/spf13/pflag"

	"github.com/hjbdev/patterm/internal/harness"
)

func runDebugHarness() {
	var (
		scenarioPath = flag.String("scenario", "", "JSON scenario path")
		pattermBin   = flag.String("patterm-bin", "", "patterm binary under test (default: this executable)")
	)
	flag.Parse()
	if *scenarioPath == "" {
		die("debug-harness: --scenario is required")
	}
	if *pattermBin == "" {
		exe, err := os.Executable()
		if err != nil {
			die("debug-harness: os.Executable: %v", err)
		}
		*pattermBin = exe
	}
	sc, err := harness.LoadScenario(*scenarioPath)
	if err != nil {
		fmt.Fprintf(os.Stdout, "{\"ok\":false,\"error\":%q}\n", err.Error())
		os.Exit(2)
	}
	enc := json.NewEncoder(os.Stdout)
	res, err := harness.RunScenario(harness.Options{
		Scenario:   sc,
		PattermBin: *pattermBin,
	}, func(ev harness.Event) {
		_ = enc.Encode(ev)
	})
	_ = enc.Encode(res)
	if err != nil {
		if res.Steps == 0 {
			os.Exit(2)
		}
		os.Exit(1)
	}
}