package main

import (
	"encoding/json"
	"flag"
	"fmt"
	"os"
	"path/filepath"
	"strings"
	"time"

	realityevaluation "git.cin.su/m/Assistant/tests/reality_evaluation"
)

func main() {
	suitePath := flag.String("suite", "", "path to versioned reality-evaluation suite JSON")
	outputPath := flag.String("output", "", "path to JSON artifact output")
	observedAt := flag.String("observed-at", "2026-08-17T12:00:00Z", "RFC3339 timestamp for reproducible artifact generation")
	flag.Parse()
	if *suitePath == "" || *outputPath == "" {
		fatal(fmt.Errorf("suite and output are required"))
	}
	at, err := time.Parse(time.RFC3339, *observedAt)
	if err != nil {
		fatal(err)
	}
	suite, err := realityevaluation.LoadSuite(*suitePath)
	if err != nil {
		fatal(err)
	}
	artifact, err := realityevaluation.RunSuite(suite, at)
	if err != nil {
		fatal(err)
	}
	payload, err := json.MarshalIndent(artifact, "", "  ")
	if err != nil {
		fatal(err)
	}
	payload = append(payload, '\n')
	if err := os.WriteFile(*outputPath, payload, 0o600); err != nil {
		fatal(err)
	}
	reportPath := strings.TrimSuffix(*outputPath, filepath.Ext(*outputPath)) + ".md"
	if err := os.WriteFile(reportPath, []byte(realityevaluation.MarkdownReport(artifact)), 0o600); err != nil {
		fatal(err)
	}
	fmt.Printf("artifact=%s total_cases=%d output=%s report=%s\n", artifact.ArtifactID, artifact.TotalCases, *outputPath, reportPath)
}

func fatal(err error) {
	fmt.Fprintln(os.Stderr, err)
	os.Exit(1)
}