Merge pull request 'Implement Jeopardy cashout' (#18) from jeopardy into master

Reviewed-on: https://git.com.de/LibertaCasa/watbot/pulls/18

1 files changed, 94 insertions, 0 deletions

diff --git a/wat/integration.go b/wat/integration.go
new file mode 100644
index 0000000..b4ff8e9
--- /dev/null
+++ b/wat/integration.go
@@ -0,0 +1,94 @@
+package wat
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/go-irc/irc"
+)
+
+type BotGameConfig map[string][]string
+
+type WatIntegrationConfig struct {
+	BotHosts []string
+	BotGames BotGameConfig
+}
+
+type WatIntegration struct {
+	bot *WatBot
+	db  *WatDb
+	c   *WatIntegrationConfig
+}
+
+func NewWatIntegration(bot *WatBot, db *WatDb, c *WatIntegrationConfig) *WatIntegration {
+	return &WatIntegration{bot, db, c}
+}
+
+func (w *WatIntegration) Bot(m *irc.Message) (bool, []string) {
+	isBot := w.bot.Allowed(m.Prefix.Host, w.c.BotHosts)
+	var games []string
+	if isBot {
+		for b, g := range w.c.BotGames {
+			if b == m.Prefix.Name {
+				games = g
+				break
+			}
+		}
+	}
+	return isBot, games
+}
+
+func (w *WatIntegration) HandleIntegration(m *irc.Message, msgargs []string) bool {
+	isBot, games := w.Bot(m)
+	if isBot {
+		// handles a message "Top finishers: (nick1: 1300) (nick2: 1200)" from an authorized Jeopardy game bot
+		if msgargs[0] == "Top" && msgargs[1] == "finishers:" && w.bot.Allowed("jeopardy", games) {
+			w.Jeopardy(m, msgargs)
+			return true
+		}
+	}
+	// not an authorized bot or no integration matched the given message
+	return false
+}
+
+func (w *WatIntegration) Jeopardy(m *irc.Message, msgargs []string) {
+	// hey, I avoided regex!
+	//   1. Starts parsing an array of message arguments containing "Top finishers: (nick1: 1000) (nick2: 2000)", where
+	//      the "($nick: $value)" pairs can contain arbitrary nicknames + integer values and can repeat one to any amount of times
+	//   2. Join the array on spaces to a string, but skip the first two elements to remove "Top" and "finishers:"
+	//   3. Replace ") (" in the string with ";" - the semicolon is chosen as a temporary delimiter because it does not conflict with any other characters in the message
+	//   4. Replace ": " in the string with ":"
+	//   5. Replace "(" in the string with "" (relevant for the first nick/value pair)
+	//   6. Replace ")" in the string with "" (relevant for the last nick/value pair)
+	//   7. Now, we have a string like "nick1:1000;nick2:2000" - split it back into an array on ";"
+	//   8. The result is an array like "[nick1:1000, nick2:2000]"
+	finisherPrizes := strings.Split(strings.Replace(strings.Replace(strings.Replace(strings.Replace(strings.Join(msgargs[2:], " "), ") (", ";", -1), ": ", ":", -1), "(", "", 1), ")", "", 1), ";")
+	fmt.Printf("Processing Jeopardy: %s\n", finisherPrizes)
+	// iterate over the "$nick:$value" string elements
+	for _, pair := range finisherPrizes {
+		// turn the string element into an array, where the first entry is the nickname, and the second the value
+		nameCoinPair := strings.Split(pair, ":")
+		coins, err := strconv.ParseUint(nameCoinPair[1], 10, 64)
+		if err != nil {
+			fmt.Printf("Invalid coins, cannot process pair for cashout: %s.\n", nameCoinPair)
+			continue
+		}
+		name := nameCoinPair[0]
+		// Jeopardy prizes are quite a lot of $$$, make it a bit more sane
+		coins = coins / 40
+		// name   = we assume the Jeopardy player name to match a Watbot player name
+		// host   = we could use some WHO logic to find the host, but assuming nickname lookup to be sufficient here
+		// create = based on the above, maybe rather not create Watbot players based on only a nick?
+		//          but it expects someone to have played with Watbot before to be eligible for Jeopardy cashout ..
+		player := w.db.User(name, "", false)
+		if player.Nick == "" {
+			fmt.Printf("Player %s does not exist in Watbot, skipping cashout.\n", name)
+			continue
+		} else {
+			w.bot.reply(m, fmt.Sprintf("smartass %s, gave u %d :)", player.Nick, coins))
+			player.Coins += coins
+			w.db.Update(player)
+		}
+	}
+}