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kadai3-1 by execjosh #48

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14 changes: 14 additions & 0 deletions kadai3/execjosh/go-typing-game/Makefile
Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
WORDS_ALPHA='https://github.com/dwyl/english-words/raw/master/words_alpha.zip'

all: setup

.PHONY: setup
setup:
[ ! -f words_alpha.txt ] && wget -Owords_alpha.zip $(WORDS_ALPHA) && unzip words_alpha.zip && rm words_alpha.zip

.PHONY: coverage
coverage:
@rm coverage.out || true
go get -u github.com/haya14busa/goverage
'${GOPATH}/bin/goverage' -v -coverprofile coverage.out ./internal/game ./internal/wordbank
go tool cover -html=coverage.out
86 changes: 86 additions & 0 deletions kadai3/execjosh/go-typing-game/internal/game/game.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,86 @@
package game

import (
"bufio"
"fmt"
"io"
"time"

"github.com/gopherdojo/dojo1/kadai3/execjosh/go-typing-game/internal/wordbank"
)

type ctx struct {
done chan struct{}
sch, fch chan bool

wb wordbank.WordProvider

stdin io.Reader
stdout io.Writer
}

// Run runs the game
func Run(stdin io.Reader, stdout io.Writer, wb wordbank.WordProvider, timeout time.Duration) *Stats {
ctx := &ctx{
done: make(chan struct{}),
sch: make(chan bool),
fch: make(chan bool),

wb: wb,

stdin: stdin,
stdout: stdout,
}

// Keep stats out of context to force use of channels
stats := &Stats{}

go ctx.gameloop()

go func() {
time.Sleep(timeout)
close(ctx.done)
}()

OUT:
for {
select {
case _, ok := <-ctx.fch:
if ok {
stats.LogFailure()
}
case _, ok := <-ctx.sch:
if ok {
stats.LogSuccess()
}
case <-ctx.done:
close(ctx.sch)
close(ctx.fch)
break OUT
}
}

return stats
}

func (c *ctx) gameloop() {
in := bufio.NewScanner(c.stdin)
word := c.wb.NextWord()

for {
fmt.Fprintln(c.stdout, word)

if ok := in.Scan(); !ok {
break
}

if word == in.Text() {
c.sch <- true
fmt.Fprintf(c.stdout, "\u2705\n")
word = c.wb.NextWord()
} else {
fmt.Fprintf(c.stdout, "\u274c\n")
c.fch <- true
}
}
}
39 changes: 39 additions & 0 deletions kadai3/execjosh/go-typing-game/internal/game/game_test.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,39 @@
package game_test

import (
"bytes"
"testing"
"time"

"github.com/gopherdojo/dojo1/kadai3/execjosh/go-typing-game/internal/game"
)

func TestRun(t *testing.T) {
input := bytes.NewBufferString("abc\nbcd\nc\n\n")
output := new(bytes.Buffer)
wb := wordBank{}
timeout := 1 * time.Second

stats := game.Run(input, output, &wb, timeout)

actualOutput := output.String()
expectedOutput := "abc\n✅\nabc\n❌\nabc\n❌\nabc\n❌\nabc\n"
if actualOutput != expectedOutput {
t.Fail()
}

if stats.SuccessCount() != 1 {
t.Fail()
}

if stats.FailureCount() != 3 {
t.Fail()
}
}

type wordBank struct {
}

func (wb *wordBank) NextWord() string {
return "abc"
}
27 changes: 27 additions & 0 deletions kadai3/execjosh/go-typing-game/internal/game/stats.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
package game

// Stats represents game stats
type Stats struct {
successCount int
failureCount int
}

// SuccessCount returns the success count
func (s *Stats) SuccessCount() int {
return s.successCount
}

// FailureCount returns the failure count
func (s *Stats) FailureCount() int {
return s.failureCount
}

// LogSuccess logs a success
func (s *Stats) LogSuccess() {
s.successCount++
}

// LogFailure logs a failure
func (s *Stats) LogFailure() {
s.failureCount++
}
29 changes: 29 additions & 0 deletions kadai3/execjosh/go-typing-game/internal/wordbank/wordbank.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,29 @@
package wordbank

import (
"math/rand"
)

// A WordProvider provides words
type WordProvider interface {
NextWord() string
}

type randomWordBank struct {
words []string
rng *rand.Rand
}

// NewRandomWordBank creates a new random word provider
func NewRandomWordBank(words []string, seed int64) WordProvider {
return &randomWordBank{
words: words,
rng: rand.New(rand.NewSource(seed)),
}
}

// NextWord implements WordProvider by returning a random word
func (rwp *randomWordBank) NextWord() string {
numWords := len(rwp.words)
return rwp.words[rwp.rng.Intn(numWords)]
}
25 changes: 25 additions & 0 deletions kadai3/execjosh/go-typing-game/internal/wordbank/wordbank_test.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
package wordbank_test

import (
"testing"

"github.com/gopherdojo/dojo1/kadai3/execjosh/go-typing-game/internal/wordbank"
)

func TestRandomWordProvider(t *testing.T) {
seed := int64(1234567890)
words := []string{
"a", "b", "c", "d", "abc",
}
wb := wordbank.NewRandomWordBank(words, seed)

expected := []string{
"d", "b", "d", "b", "d",
}

for _, exp := range expected {
if exp != wb.NextWord() {
t.Fail()
}
}
}
64 changes: 64 additions & 0 deletions kadai3/execjosh/go-typing-game/main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,64 @@
package main

import (
"bufio"
"errors"
"fmt"
"os"
"time"

"github.com/gopherdojo/dojo1/kadai3/execjosh/go-typing-game/internal/game"
"github.com/gopherdojo/dojo1/kadai3/execjosh/go-typing-game/internal/wordbank"
)

const (
wordsFilePath = "words_alpha.txt"
timeout = 30 * time.Second
)

func die(err error) {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}

func main() {
wb, err := loadWordBankFromFile(wordsFilePath)
if err != nil {
die(err)
}

fmt.Printf("You have %v!\n", timeout)

stats := game.Run(os.Stdin, os.Stdout, wb, timeout)

fmt.Println("\n---\nTime's Up, Grasshopper!")
fmt.Println("\x1b[92mSuccess count: ", stats.SuccessCount(), "\x1b[m")
fmt.Println("\x1b[31mFailure count: ", stats.FailureCount(), "\x1b[m")
}

func loadWordBankFromFile(filepath string) (wordbank.WordProvider, error) {
f, err := os.Open(filepath)
if err != nil {
if os.IsNotExist(err) {
err = errors.New(fmt.Sprint("expected ", wordsFilePath, " to exist"))
}
return nil, err
}
defer f.Close()

s := bufio.NewScanner(f)
words := make([]string, 0)
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これは var words []string でもいけたでした (;・∀・)

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for s.Scan() {
w := s.Text()
words = append(words, w)
}

if err := s.Err(); err != nil {
return nil, err
}

wb := wordbank.NewRandomWordBank(words, time.Now().UnixNano())

return wb, nil
}