go fmt because apparently we're all too amazing to handle ill-formatted code, wimps

go.mod

@@ -7,7 +7,6 @@ require (
 	github.com/AlekSi/pointer v1.1.0 // indirect
 	github.com/ChimeraCoder/anaconda v2.0.0+incompatible
 	github.com/ChimeraCoder/tokenbucket v0.0.0-20131201223612-c5a927568de7 // indirect
-	github.com/PaulRosset/go-hacknews v0.0.0-20170815075127-4aad99273a3c
 	github.com/PuerkitoBio/goquery v1.5.0
 	github.com/andybalholm/cascadia v1.1.0 // indirect
 	github.com/antchfx/htmlquery v1.2.0 // indirect

go.sum

@@ -1,5 +1,3 @@
-code.chrissexton.org/cws/getaoc v0.0.0-20191201041923-dc696067b57c h1:X5c+asGWxR/Whkgl/YYXDanC4n2RHYeFcC7mT37+uZ4=
-code.chrissexton.org/cws/getaoc v0.0.0-20191201041923-dc696067b57c/go.mod h1:rEpfJR9MplF2TUj2Oy+u4XAaLve2kwB8I2zlzeIQxl8=
 code.chrissexton.org/cws/getaoc v0.0.0-20191201043947-d5417d4b618d h1:XS13tP+cMAvXYHQiYqcst64wQ854pueMRZSU4+6puU4=
 code.chrissexton.org/cws/getaoc v0.0.0-20191201043947-d5417d4b618d/go.mod h1:rEpfJR9MplF2TUj2Oy+u4XAaLve2kwB8I2zlzeIQxl8=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
@@ -12,8 +10,6 @@ github.com/ChimeraCoder/anaconda v2.0.0+incompatible h1:F0eD7CHXieZ+VLboCD5UAqCe
 github.com/ChimeraCoder/anaconda v2.0.0+incompatible/go.mod h1:TCt3MijIq3Qqo9SBtuW/rrM4x7rDfWqYWHj8T7hLcLg=
 github.com/ChimeraCoder/tokenbucket v0.0.0-20131201223612-c5a927568de7 h1:r+EmXjfPosKO4wfiMLe1XQictsIlhErTufbWUsjOTZs=
 github.com/ChimeraCoder/tokenbucket v0.0.0-20131201223612-c5a927568de7/go.mod h1:b2EuEMLSG9q3bZ95ql1+8oVqzzrTNSiOQqSXWFBzxeI=
-github.com/PaulRosset/go-hacknews v0.0.0-20170815075127-4aad99273a3c h1:bJ0HbTMaInVjakxM76G+2gsmbKTdHzpTUGyLGYxdMO0=
-github.com/PaulRosset/go-hacknews v0.0.0-20170815075127-4aad99273a3c/go.mod h1:8+24kIp7vJsYy0GmQDDNnPwAYEWkl3OcaPxJSDAfe1U=
 github.com/PuerkitoBio/goquery v1.5.0 h1:uGvmFXOA73IKluu/F84Xd1tt/z07GYm8X49XKHP7EJk=
 github.com/PuerkitoBio/goquery v1.5.0/go.mod h1:qD2PgZ9lccMbQlc7eEOjaeRlFQON7xY8kdmcsrnKqMg=
 github.com/ajstarks/svgo v0.0.0-20180226025133-644b8db467af/go.mod h1:K08gAheRH3/J6wwsYMMT4xOr94bZjxIelGM0+d/wbFw=
@@ -51,6 +47,7 @@ github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/
 github.com/garyburd/go-oauth v0.0.0-20180319155456-bca2e7f09a17 h1:GOfMz6cRgTJ9jWV0qAezv642OhPnKEG7gtUjJSdStHE=
 github.com/garyburd/go-oauth v0.0.0-20180319155456-bca2e7f09a17/go.mod h1:HfkOCN6fkKKaPSAeNq/er3xObxTW4VLeY6UUK895gLQ=
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
+github.com/go-sql-driver/mysql v1.4.0 h1:7LxgVwFb2hIQtMm87NdgAVfXjnt4OePseqT1tKx+opk=
 github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
 github.com/gobwas/glob v0.2.3 h1:A4xDbljILXROh+kObIiy5kIaPYD8e96x1tgBhUI5J+Y=
 github.com/gobwas/glob v0.2.3/go.mod h1:d3Ez4x06l9bZtSvzIay5+Yzi0fmZzPgnTbPcKjJAkT8=
@@ -78,6 +75,7 @@ github.com/jmoiron/sqlx v1.2.0/go.mod h1:1FEQNm3xlJgrMD+FBdI9+xvCksHtbpVBBw5dYhB
 github.com/jung-kurt/gofpdf v1.0.3-0.20190309125859-24315acbbda5/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes=
 github.com/kennygrant/sanitize v1.2.4 h1:gN25/otpP5vAsO2djbMhF/LQX6R7+O1TB4yv8NzpJ3o=
 github.com/kennygrant/sanitize v1.2.4/go.mod h1:LGsjYYtgxbetdg5owWB2mpgUL6e2nfw2eObZ0u0qvak=
+github.com/lib/pq v1.0.0 h1:X5PMW56eZitiTeO7tKzZxFCSpbFZJtkMMooicw2us9A=
 github.com/lib/pq v1.0.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/mattn/go-sqlite3 v1.9.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
 github.com/mattn/go-sqlite3 v1.11.0 h1:LDdKkqtYlom37fkvqs8rMPFKAMe8+SgjbwZ6ex1/A/Q=
@@ -161,6 +159,7 @@ gonum.org/v1/gonum v0.6.0/go.mod h1:9mxDZsDKxgMAuccQkewq682L+0eCu4dCN2yonUJTCLU=
 gonum.org/v1/netlib v0.0.0-20190313105609-8cb42192e0e0 h1:OE9mWmgKkjJyEmDAAtGMPjXu+YNeGvK9VTSHY6+Qihc=
 gonum.org/v1/netlib v0.0.0-20190313105609-8cb42192e0e0/go.mod h1:wa6Ws7BG/ESfp6dHfk7C6KdzKA7wR7u/rKwOGE66zvw=
 gonum.org/v1/plot v0.0.0-20190515093506-e2840ee46a6b/go.mod h1:Wt8AAjI+ypCyYX3nZBvf6cAIx93T+c/OS2HFAYskSZc=
+google.golang.org/appengine v1.6.5 h1:tycE03LOZYQNhDpS27tcQdAzLCVMaj7QT2SXxebnpCM=
 google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

main.go

@@ -32,6 +32,7 @@ import (
 	"github.com/velour/catbase/plugins/first"
 	"github.com/velour/catbase/plugins/fuck"
 	"github.com/velour/catbase/plugins/git"
+	"github.com/velour/catbase/plugins/impossible"
 	"github.com/velour/catbase/plugins/inventory"
 	"github.com/velour/catbase/plugins/leftpad"
 	"github.com/velour/catbase/plugins/nerdepedia"
@@ -134,6 +135,7 @@ func main() {
 	b.AddPlugin(newsbid.New(b))
 	b.AddPlugin(twitter.New(b))
 	b.AddPlugin(git.New(b))
+	b.AddPlugin(impossible.New(b))
 	b.AddPlugin(cli.New(b))
 	b.AddPlugin(aoc.New(b))
 	// catches anything left, will always return true

plugins/impossible/impossible.go

@@ -0,0 +1,149 @@
+package impossible
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"math/rand"
+	"net/http"
+	"net/url"
+	"regexp"
+	"strings"
+	"time"
+
+	"github.com/rs/zerolog/log"
+
+	"github.com/velour/catbase/bot"
+	"github.com/velour/catbase/bot/msg"
+	"github.com/velour/catbase/config"
+)
+
+type Impossible struct {
+	b bot.Bot
+	c *config.Config
+
+	title   string
+	content []string
+	updated time.Time
+	testing bool
+}
+
+func New(b bot.Bot) *Impossible {
+	i := &Impossible{
+		b:       b,
+		c:       b.Config(),
+		title:   "",
+		content: []string{},
+		updated: getTodaysMidnight().Add(time.Hour * -24),
+		testing: false,
+	}
+
+	b.Register(i, bot.Help, i.help)
+	b.Register(i, bot.Message, i.message)
+
+	return i
+}
+
+func newTesting(b bot.Bot) *Impossible {
+	i := &Impossible{
+		b:       b,
+		c:       b.Config(),
+		title:   "",
+		content: []string{},
+		updated: getTodaysMidnight().Add(time.Hour * -24),
+		testing: true,
+	}
+
+	b.Register(i, bot.Help, i.help)
+	b.Register(i, bot.Message, i.message)
+
+	return i
+}
+
+func (p *Impossible) help(c bot.Connector, kind bot.Kind, message msg.Message, args ...interface{}) bool {
+	p.b.Send(c, bot.Message, message.Channel, "You don't need to do anything. I'll take care of it. But guess what I'm thinking.")
+	return true
+}
+
+func (p *Impossible) message(c bot.Connector, kind bot.Kind, message msg.Message, args ...interface{}) bool {
+	messaged := false
+	if p.updated.Before(time.Now()) {
+		if p.title != "" {
+			p.b.Send(c, bot.Message, message.Channel, fmt.Sprintf("The last impossible wikipedia article was: \"%s\"", p.title))
+			messaged = true
+		}
+		for !p.refreshImpossible() {
+		}
+
+		if p.testing {
+			p.b.Send(c, bot.Message, message.Channel, p.title)
+			messaged = true
+		}
+	}
+
+	lowercase := strings.ToLower(message.Body)
+	if lowercase == "hint" || lowercase == "clue" {
+		messaged = true
+		p.b.Send(c, bot.Message, message.Channel, p.content[rand.Intn(len(p.content))])
+	} else if strings.Contains(lowercase, strings.ToLower(p.title)) {
+		messaged = true
+		p.b.Send(c, bot.Message, message.Channel, fmt.Sprintf("You guessed the last impossible wikipedia article: \"%s\"", p.title))
+		for !p.refreshImpossible() {
+		}
+	}
+
+	return messaged
+}
+
+func (p *Impossible) refreshImpossible() bool {
+	p.updated = getTodaysMidnight()
+	resp, err := http.Get("https://en.wikipedia.org/wiki/Special:Random")
+	if err != nil {
+		log.Fatal().Err(err)
+	}
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+
+	titleRegex := regexp.MustCompile(`id="firstHeading"[^>]*(?P<Title>[^<]*)`)
+	results := titleRegex.FindStringSubmatch(string(body))
+	title := results[1][1:] //remove the leading <
+
+	if title == "" {
+		return false
+	}
+
+	p.title = title
+	p.content = []string{}
+
+	resp, err = http.Get("https://en.wikipedia.org/w/api.php?format=json&action=query&prop=extracts&explaintext&titles=" + url.PathEscape(title))
+	if err != nil {
+		log.Fatal().Err(err)
+	}
+	defer resp.Body.Close()
+	body, err = ioutil.ReadAll(resp.Body)
+
+	var object map[string]interface{}
+	json.Unmarshal([]byte(body), &object)
+
+	pages := object["query"].(map[string]interface{})["pages"].(map[string]interface{})
+	for _, page := range pages {
+		descriptionText := page.(map[string]interface{})["extract"].(string)
+		sentences := strings.Split(strings.ReplaceAll(descriptionText, "\n", " "), ". ")
+		for _, sentence := range sentences {
+			trimmed := strings.ToLower(strings.TrimSpace(sentence))
+			if len(trimmed) == 0 || strings.HasPrefix(trimmed, "==") || len(strings.Split(trimmed, " ")) < 5 {
+				continue
+			}
+
+			censored := strings.ReplaceAll(trimmed, strings.ToLower(title), "?????")
+
+			p.content = append(p.content, censored)
+		}
+	}
+	return true
+}
+
+func getTodaysMidnight() time.Time {
+	now := time.Now()
+	return time.Date(now.Year(), now.Month(), now.Day(), 24, 0, 0, 0, now.Location())
+}

plugins/impossible/impossible_test.go

@@ -0,0 +1,59 @@
+package impossible
+
+import (
+	"fmt"
+	"github.com/velour/catbase/plugins/cli"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/velour/catbase/bot"
+	"github.com/velour/catbase/bot/msg"
+	"github.com/velour/catbase/bot/user"
+	"github.com/velour/catbase/plugins/counter"
+)
+
+func makeMessage(payload string) (bot.Connector, bot.Kind, msg.Message) {
+	isCmd := strings.HasPrefix(payload, "!")
+	if isCmd {
+		payload = payload[1:]
+	}
+	return &cli.CliPlugin{}, bot.Message, msg.Message{
+		User:    &user.User{Name: "tester"},
+		Channel: "test",
+		Body:    payload,
+		Command: isCmd,
+	}
+}
+
+func makePlugin(t *testing.T) (*Impossible, *bot.MockBot) {
+	mb := bot.NewMockBot()
+	counter.New(mb)
+	p := newTesting(mb)
+	assert.NotNil(t, p)
+	return p, mb
+}
+
+func TestNothing(t *testing.T) {
+	p, mb := makePlugin(t)
+	p.message(makeMessage("hi"))
+	p.message(makeMessage("nothing"))
+	assert.Len(t, mb.Messages, 1)
+}
+
+func TestHint(t *testing.T) {
+	p, mb := makePlugin(t)
+	p.message(makeMessage("hi"))
+	p.message(makeMessage("!hint"))
+	assert.Len(t, mb.Messages, 2)
+}
+
+func TestCorrect(t *testing.T) {
+	p, mb := makePlugin(t)
+	p.message(makeMessage("hi"))
+	p.message(makeMessage(mb.Messages[0]))
+
+	congrats := fmt.Sprintf("You guessed the last impossible wikipedia article: \"%s\"", mb.Messages[0])
+
+	assert.Contains(t, mb.Messages[1], congrats)
+}