package hugo

import (
	"bytes"
	"context"
	"lmika.dev/lmika/hugo-crm/models"
	"lmika.dev/lmika/hugo-crm/providers/hugo/tmpls"
	"log"
	"os"
	"os/exec"
	"path/filepath"
	"text/template"
)

type Provider struct {
	stagingDir string
	tmpls      *template.Template
}

func New(stagingDir string) (*Provider, error) {
	ts, err := template.ParseFS(tmpls.FS, "*.tmpl")
	if err != nil {
		return nil, err
	}

	return &Provider{
		stagingDir: stagingDir,
		tmpls:      ts,
	}, nil
}

func (p *Provider) SiteStagingDir(site models.Site, what SiteDir) string {
	switch what {
	case BaseSiteDir:
		return filepath.Join(p.stagingDir, site.Name)
	case ThemeSiteDir:
		return filepath.Join(p.stagingDir, site.Name, "themes", site.Theme)
	}
	return ""
}

func (p *Provider) NewSite(ctx context.Context, site models.Site) error {
	log.Printf(" .. %v", p.SiteStagingDir(site, BaseSiteDir))
	if err := os.MkdirAll(p.SiteStagingDir(site, BaseSiteDir), 0755); err != nil {
		return err
	}

	// Create the new site
	if err := exec.CommandContext(ctx, "hugo", "new", "site", p.SiteStagingDir(site, BaseSiteDir)).Run(); err != nil {
		return err
	}
	return nil
}

func (p *Provider) ReconfigureSite(ctx context.Context, site models.Site) error {
	// Reconfigure the site
	var hugoCfg bytes.Buffer
	if err := p.tmpls.ExecuteTemplate(&hugoCfg, "config.toml.tmpl", struct {
		Site models.Site
	}{
		Site: site,
	}); err != nil {
		return err
	}

	if err := os.WriteFile(filepath.Join(p.SiteStagingDir(site, BaseSiteDir), "hugo.toml"), hugoCfg.Bytes(), 0644); err != nil {
		return err
	}
	return nil
}