package lifecycle

import (
	"errors"
	"fmt"
	"os"

	"github.com/kunchenguid/no-mistakes/internal/db"
	"github.com/kunchenguid/no-mistakes/internal/paths"
)

// ActiveRuns returns all pending/running pipeline runs from the local state DB.
func ActiveRuns(p *paths.Paths) ([]*db.Run, error) {
	if p == nil {
		return nil, nil
	}
	dbPath := p.DB()
	if _, err := os.Stat(dbPath); err != nil {
		if errors.Is(err, os.ErrNotExist) {
			return nil, nil
		}
		return nil, fmt.Errorf("stat database: %w", err)
	}

	database, err := db.Open(dbPath)
	if err != nil {
		return nil, err
	}
	defer database.Close()
	return database.GetActiveRuns()
}

func RunList(runs []*db.Run) string {
	if len(runs) == 0 {
		return ""
	}
	out := "active pipeline runs:\n"
	for _, run := range runs {
		out += fmt.Sprintf("  %s  %s  %s  %s\n", run.ID, run.Status, run.Branch, ShortSHA(run.HeadSHA))
	}
	return out
}

func ShortSHA(sha string) string {
	if len(sha) <= 8 {
		return sha
	}
	return sha[:8]
}