package main

import (
	"html/template"
	"path/filepath"

	"github.com/yulqen/ded-go-core/internal/models"
)

// TODO: At the moment we are using a struct will have fields for all the data
// we will need. Not sure whether this is good or bad at the moment.
type templateData struct {
	Operations    []models.Operation
	Organisations []models.Organisation
}

func newTemplateCache() (map[string]*template.Template, error) {
	cache := map[string]*template.Template{}

	// get a slice of filepaths match the pattern for our page templates
	// e.g. [ui/html/pages/home.tmpl.html ui/html/pages/view.tmpl.html]
	pages, err := filepath.Glob("./ui/html/pages/*.html")
	if err != nil {
		return nil, err
	}

	// loop through the page filepaths one by one
	for _, page := range pages {
		// extract "home.tmp.html" from the full filepath.
		name := filepath.Base(page)

		files := []string{
			"./ui/html/base.tmpl.html",
			"./ui/html/partials/nav.tmpl.html",
			page,
		}

		ts, err := template.ParseFiles(files...)
		if err != nil {
			return nil, err
		}

		cache[name] = ts
	}

	return cache, nil
}