package template

import "path/filepath"

const ConfigFileName = "config.json"
const SchemaFileName = "schema.json"
const TemplateDirName = "template"

func Materialize(templatePath, instancePath string) error {
	// read the file containing schema for template input parameters
	schema, err := ReadSchema(filepath.Join(templatePath, SchemaFileName))
	if err != nil {
		return err
	}

	// read user config to initalize the template with
	config, err := schema.ReadConfig(filepath.Join(instancePath, ConfigFileName))
	if err != nil {
		return err
	}

	// materialize the template
	return WalkFileTree(config, filepath.Join(templatePath, TemplateDirName), instancePath)
}