From d372541735c6eee12c11838d338e59f7e8137c0e Mon Sep 17 00:00:00 2001
From: skiesel <kiesel.scott@gmail.com>
Date: Fri, 7 Jun 2019 14:32:20 -0400
Subject: [PATCH] stock checker

---
 main.go                     |  2 +
 plugins/stock/stock.go      | 94 +++++++++++++++++++++++++++++++++++++
 plugins/stock/stock_test.go | 45 ++++++++++++++++++
 3 files changed, 141 insertions(+)
 create mode 100644 plugins/stock/stock.go
 create mode 100644 plugins/stock/stock_test.go

diff --git a/main.go b/main.go
index 6837a05..8a1fdae 100644
--- a/main.go
+++ b/main.go
@@ -37,6 +37,7 @@ import (
 	"github.com/velour/catbase/plugins/rpgORdie"
 	"github.com/velour/catbase/plugins/rss"
 	"github.com/velour/catbase/plugins/sisyphus"
+	"github.com/velour/catbase/plugins/stock"
 	"github.com/velour/catbase/plugins/talker"
 	"github.com/velour/catbase/plugins/tell"
 	"github.com/velour/catbase/plugins/tldr"
@@ -122,6 +123,7 @@ func main() {
 	b.AddPlugin(couldashouldawoulda.New(b))
 	b.AddPlugin(nerdepedia.New(b))
 	b.AddPlugin(tldr.New(b))
+	b.AddPlugin(stock.New(b))
 	b.AddPlugin(cli.New(b))
 	// catches anything left, will always return true
 	b.AddPlugin(fact.New(b))
diff --git a/plugins/stock/stock.go b/plugins/stock/stock.go
new file mode 100644
index 0000000..e85fdab
--- /dev/null
+++ b/plugins/stock/stock.go
@@ -0,0 +1,94 @@
+package stock
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"regexp"
+	"strings"
+
+	"github.com/rs/zerolog/log"
+
+	"github.com/velour/catbase/bot"
+	"github.com/velour/catbase/bot/msg"
+)
+
+type StockPlugin struct {
+	bot    bot.Bot
+	apiKey string
+}
+
+func New(b bot.Bot) *StockPlugin {
+	s := &StockPlugin{
+		bot:    b,
+		apiKey: b.Config().GetString("Stock.API_KEY", "0E1DP61SJ7GF81IE"),
+	}
+	b.Register(s, bot.Message, s.message)
+	b.Register(s, bot.Help, s.help)
+	return s
+}
+
+type GlobalQuote struct {
+	Info StockInfo `json:"GlobalQuote"`
+}
+
+type StockInfo struct {
+	Symbol           string `json:"symbol"`
+	Open             string `json:"open"`
+	High             string `json:"high"`
+	Low              string `json:"low"`
+	Price            string `json:"price"`
+	Volume           string `json:"volume"`
+	LatestTradingDay string `json:"latesttradingday"`
+	PreviousClose    string `json:"previousclose"`
+	Change           string `json:"change"`
+	ChangePercent    string `json:"changepercent"`
+}
+
+func (p *StockPlugin) message(c bot.Connector, kind bot.Kind, message msg.Message, args ...interface{}) bool {
+	if !message.Command {
+		return false
+	}
+
+	tokens := strings.Fields(message.Body)
+	numTokens := len(tokens)
+
+	if numTokens == 2 && strings.ToLower(tokens[0]) == "stock-price" {
+		query := fmt.Sprintf("https://www.alphavantage.co/query?function=GLOBAL_QUOTE&symbol=%s&apikey=%s", tokens[1], p.apiKey)
+
+		resp, err := http.Get(query)
+		if err != nil {
+			log.Fatal().Err(err).Msg("Failed to get stock info")
+		}
+		body, err := ioutil.ReadAll(resp.Body)
+		resp.Body.Close()
+		if err != nil {
+			log.Fatal().Err(err).Msg("Error stock info body")
+		}
+
+		response := "Failed to retrieve data for stock symbol: " + tokens[1]
+
+		cleaned := strings.ReplaceAll(string(body), " ", "")
+		regex := regexp.MustCompile("[0-9][0-9]\\.")
+
+		cleaned = regex.ReplaceAllString(cleaned, "")
+
+		var info GlobalQuote
+		err = json.Unmarshal([]byte(cleaned), &info)
+
+		if err == nil && strings.EqualFold(tokens[1], info.Info.Symbol) {
+			response = fmt.Sprintf("%s : $%s (%s)", tokens[1], info.Info.Price, info.Info.ChangePercent)
+		}
+
+		p.bot.Send(c, bot.Message, message.Channel, response)
+		return true
+	}
+
+	return false
+}
+
+func (p *StockPlugin) help(c bot.Connector, kind bot.Kind, message msg.Message, args ...interface{}) bool {
+	p.bot.Send(c, bot.Message, message.Channel, "try '!stock-price SYMBOL'")
+	return true
+}
diff --git a/plugins/stock/stock_test.go b/plugins/stock/stock_test.go
new file mode 100644
index 0000000..914f6d2
--- /dev/null
+++ b/plugins/stock/stock_test.go
@@ -0,0 +1,45 @@
+package stock
+
+import (
+	"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"
+)
+
+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 TestValid(t *testing.T) {
+	mb := bot.NewMockBot()
+	c := New(mb)
+	assert.NotNil(t, c)
+	res := c.message(makeMessage("!stock-price TWTR"))
+	assert.Len(t, mb.Messages, 1)
+	assert.True(t, res)
+	assert.Contains(t, mb.Messages[0], "TWTR : $")
+}
+
+func TestInvalid(t *testing.T) {
+	mb := bot.NewMockBot()
+	c := New(mb)
+	assert.NotNil(t, c)
+	res := c.message(makeMessage("!stock-price NOTREAL"))
+	assert.Len(t, mb.Messages, 1)
+	assert.True(t, res)
+	assert.Contains(t, mb.Messages[0], "Failed to retrieve data for stock symbol: NOTREAL")
+}