fixr: buying crisis tickets

crisis.go

package main

import (
	"fmt"
	"math/rand"
	"time"

	"github.com/ewancook/fixr"
	"github.com/howeyc/gopass"
)

type ticket struct {
	event, index, amount int
}

func main() {
	fixr.UpdateVersion()
	email := "email@email.com"

	list := []ticket{ticket{event: 478304484, index: 2, amount: 4},
		ticket{event: 341126298, index: 2, amount: 3},
		ticket{event: 928770982, index: 2, amount: 3}}

	// Setting up timers
	buyTime := "2018-04-02 16:00:02"
	loc, err := time.LoadLocation("Europe/London")
	if err != nil {
		fmt.Printf("(%s) Error parsing location (for time): %v\n", email, err)
		return
	}
	dur, err := time.ParseInLocation("2006-01-02 15:04:05", buyTime, loc)
	if err != nil {
		fmt.Printf("(%s) Error parsing time: %v\n", email, dur)
		return
	}
	left := time.Until(dur)
	if left.Seconds() < -60*10 {
		fmt.Printf("(%s) No point running this now!\n", email)
		return
	}
	buyTimer := time.NewTimer(left)

	// Login/Time to buy!
	fmt.Printf("(%s) Please enter your FIXR password: ", email)
	password, err := gopass.GetPasswdMasked()
	if err != nil {
		fmt.Printf("(%s) Error occurred when inputting password.\n", email)
		return
	}
	c := fixr.NewClient(email)
	if err := c.Logon(string(password)); err != nil {
		fmt.Printf("(%s) %v\n", email, err)
		return
	}
	fmt.Printf("(%s) Logged in!\n", email)
	card, err := c.HasCard()
	if err != nil {
		fmt.Printf("(%s) %v\n", email, err)
	}
	if !card {
		fmt.Printf("(%s) No payment method: add a card at http://fixr.co\n", email)
		return
	}
	for _, l := range list {
		fmt.Printf("(%s) Added %d tickets to queue (%d: %d)\n", email, l.amount, l.event, l.index)
	}
	fmt.Printf("(%s) Waiting for %.0f seconds\n", email, left.Seconds())
	<-buyTimer.C

	// Buy tickets!
	for _, t := range list {
		e, err := c.Event(t.event)
		if err != nil {
			fmt.Printf("(%s) Couldn't buy ticket (%d: %d): %v\n", email, t.event, t.index, err)
			continue
		}
		if p, err := c.Book(&e.Tickets[t.index], t.amount, nil); err != nil {
			fmt.Printf("(%s) Couldn't buy ticket (%d: %d): %v\n", email, t.event, t.index, err)
		} else {
			fmt.Printf("(%s) Bought ticket (%s) PDF: %s\n", email, e.Tickets[t.index].Name, p.PDF)
		}
		<-time.NewTimer(time.Duration(5+rand.Intn(4)) * time.Second).C
	}
}