package http

import (
	"fmt"
	"html/template"
	"io/fs"

	"git.javil.eu/jacob1123/budgeteer/web"
	"github.com/gin-gonic/gin/render"
)

type Templates struct {
	templates map[string]*template.Template
}

func NewTemplates(funcMap template.FuncMap) (*Templates, error) {
	templates, err := fs.Glob(web.Templates, "*.tpl")
	if err != nil {
		return nil, fmt.Errorf("glob: %w", err)
	}

	result := &Templates{
		templates: make(map[string]*template.Template, 0),
	}
	pages, err := fs.Glob(web.Templates, "*.html")
	for _, page := range pages {
		allTemplates := append(templates, page)
		tpl, err := template.New(page).Funcs(funcMap).ParseFS(web.Templates, allTemplates...)
		fmt.Printf("page: %s, templates: %v\n", page, templates)
		if err != nil {
			return nil, err
		}
		result.templates[page] = tpl
	}

	return result, nil
}

func (tpl *Templates) Instance(name string, obj interface{}) render.Render {
	return render.HTML{
		Template: tpl.templates[name],
		Name:     name,
		Data:     obj,
	}
}