package domain

import (
	"bytes"
	"strings"
	"text/template"
	"time"

	"github.com/autobrr/autobrr/pkg/errors"

	"github.com/Masterminds/sprig/v3"
)

type Macro struct {
	TorrentName         string
	TorrentPathName     string
	TorrentHash         string
	TorrentID           string
	TorrentUrl          string
	TorrentDataRawBytes []byte
	MagnetURI           string
	GroupID             string
	Indexer             string
	Title               string
	Resolution          string
	Source              string
	HDR                 string
	FilterName          string
	Size                uint64
	Season              int
	Episode             int
	Year                int
	CurrentYear         int
	CurrentMonth        int
	CurrentDay          int
	CurrentHour         int
	CurrentMinute       int
	CurrentSecond       int
}

func NewMacro(release Release) Macro {
	currentTime := time.Now()

	ma := Macro{
		TorrentName:         release.TorrentName,
		TorrentUrl:          release.TorrentURL,
		TorrentPathName:     release.TorrentTmpFile,
		TorrentDataRawBytes: release.TorrentDataRawBytes,
		TorrentHash:         release.TorrentHash,
		TorrentID:           release.TorrentID,
		MagnetURI:           release.MagnetURI,
		GroupID:             release.GroupID,
		Indexer:             release.Indexer,
		Title:               release.Title,
		Resolution:          release.Resolution,
		Source:              release.Source,
		HDR:                 strings.Join(release.HDR, ", "),
		FilterName:          release.FilterName,
		Size:                release.Size,
		Season:              release.Season,
		Episode:             release.Episode,
		Year:                release.Year,
		CurrentYear:         currentTime.Year(),
		CurrentMonth:        int(currentTime.Month()),
		CurrentDay:          currentTime.Day(),
		CurrentHour:         currentTime.Hour(),
		CurrentMinute:       currentTime.Minute(),
		CurrentSecond:       currentTime.Second(),
	}

	return ma
}

// Parse takes a string and replaces valid vars
func (m Macro) Parse(text string) (string, error) {
	if text == "" {
		return "", nil
	}

	// setup template
	tmpl, err := template.New("macro").Funcs(sprig.TxtFuncMap()).Parse(text)
	if err != nil {
		return "", errors.Wrap(err, "could parse macro template")
	}

	var tpl bytes.Buffer
	err = tmpl.Execute(&tpl, m)
	if err != nil {
		return "", errors.Wrap(err, "could not parse macro")
	}

	return tpl.String(), nil
}

// MustParse takes a string and replaces valid vars
func (m Macro) MustParse(text string) string {
	if text == "" {
		return ""
	}

	// setup template
	tmpl, err := template.New("macro").Funcs(sprig.TxtFuncMap()).Parse(text)
	if err != nil {
		return ""
	}

	var tpl bytes.Buffer
	err = tmpl.Execute(&tpl, m)
	if err != nil {
		return ""
	}

	return tpl.String()
}