AmberParser.go - Convenience package for parsing Amber templates with JSON parameters

AmberParser.go

/*
 *@desc: Convenience package for parsing
 * Amber templates with JSON parameters
 *
 *@use:
	ambrPrsr := amberParser.New("src/views/foobar.amber", `{
		"favorite_color":"grey",
		"year":"2014",
		"baz":"bar"
	}`)

	ambrRes, ambrErr := ambrPrsr.Parse()
 */

package amberParser

import (
	"bytes"
	"encoding/json"
	"github.com/eknkc/amber"
)

type AmberParser struct {
	file    string
	options string
}

func New(file string, options string) *AmberParser {
	return &AmberParser{file, options}
}

func (this *AmberParser) Parse() (string, error) {
	ambr := amber.New()

	abmrParseErr := ambr.ParseFile(this.file)

	var res string

	if abmrParseErr != nil {
		return "", abmrParseErr
	}

	tpl, ambrCompileErr := ambr.Compile()

	if ambrCompileErr == nil {
		var outTpl bytes.Buffer

		jsonRes := map[string]interface{}{}
		ambrJsonErr := json.Unmarshal([]byte(this.options), &jsonRes)

		if ambrJsonErr != nil {
			return "", ambrJsonErr
		}

		tpl.Execute(&outTpl, jsonRes)
		res = outTpl.String()
	}

	return res, nil
}