Add initial .shop function for dnd items

lorebot/lorebot.go

@@ -18,6 +18,7 @@ import (
 	"time"
 
 	"github.com/bwmarrin/discordgo"
+	"github.com/ryanuber/columnize"
 	"github.com/unixvoid/glogger"
 	"gopkg.in/gcfg.v1"
 	"gopkg.in/redis.v5"
@@ -181,6 +182,8 @@ func staticCommandHandler(s *discordgo.Session, m *discordgo.MessageCreate) {
 		advancedHelpMsg(s, m)
 	case "rng":
 		rngHandler(s, m, redisClient)
+	case "shop":
+		shopHandler(s, m, redisClient)
 	case "dubs":
 		dubsHandler(s, m, redisClient)
 	case "lunch":
@@ -297,6 +300,148 @@ func rngHandler(s *discordgo.Session, m *discordgo.MessageCreate, redisClient *r
 	s.ChannelMessageSend(m.ChannelID, rngMsg)
 }
 
+func shopHandler(s *discordgo.Session, m *discordgo.MessageCreate, redisClient *redis.Client) {
+	// item settings
+	minCommon := 4
+	maxCommon := 6
+	minUncommon := 2
+	maxUncommon := 4
+	minRare := 1
+	maxRare := 3
+	minVeryRare := 0
+	maxVeryRare := 2
+
+	// initialize item table
+	var itemTable []string
+	itemTable = append(itemTable, "Name | Rarity | Price | Type")
+
+	//
+	// commons:
+	//
+	// get common amount (rand.Intn(max - min) + min
+	rand.Seed(time.Now().UnixNano())
+	commons := rand.Intn(maxCommon-minCommon) + minCommon
+	for n := 0; n < commons; n++ {
+		// grab random item
+		command, err := loreQuery("index:dnd:common", redisClient)
+		if err != nil {
+			glogger.Error.Println(err)
+		}
+		// if the array is empty, exit early
+		if len(command) <= 0 {
+			return
+		}
+		// pull random item
+		rand.Seed(time.Now().UnixNano())
+		rngItem := fmt.Sprint(command[rand.Intn(len(command))])
+
+		// get item details for shop message
+		rngItemName, _ := redisClient.HGet(rngItem, "name").Result()
+		rngItemRarity, _ := redisClient.HGet(rngItem, "rarity").Result()
+		rngItemPrice, _ := redisClient.HGet(rngItem, "price").Result()
+		rngItemType, _ := redisClient.HGet(rngItem, "type").Result()
+
+		// put together message
+		itemTable = append(itemTable, fmt.Sprintf("%s | %s | %s | %s", rngItemName, rngItemRarity, rngItemPrice, rngItemType))
+	}
+
+	//
+	// uncommons:
+	//
+	// get uncommon amount (rand.Intn(max - min) + min
+	rand.Seed(time.Now().UnixNano())
+	uncommons := rand.Intn(maxUncommon-minUncommon) + minUncommon
+	for n := 0; n < uncommons; n++ {
+		// grab random item
+		command, err := loreQuery("index:dnd:uncommon", redisClient)
+		if err != nil {
+			glogger.Error.Println(err)
+		}
+		// if the array is empty, exit early
+		if len(command) <= 0 {
+			return
+		}
+		// pull random item
+		rand.Seed(time.Now().UnixNano())
+		rngItem := fmt.Sprint(command[rand.Intn(len(command))])
+
+		// get item details for shop message
+		rngItemName, _ := redisClient.HGet(rngItem, "name").Result()
+		rngItemRarity, _ := redisClient.HGet(rngItem, "rarity").Result()
+		rngItemPrice, _ := redisClient.HGet(rngItem, "price").Result()
+		rngItemType, _ := redisClient.HGet(rngItem, "type").Result()
+
+		// put together message
+		itemTable = append(itemTable, fmt.Sprintf("%s | %s | %s | %s", rngItemName, rngItemRarity, rngItemPrice, rngItemType))
+	}
+
+	//
+	// rare:
+	//
+	// get rare amount (rand.Intn(max - min) + min
+	rand.Seed(time.Now().UnixNano())
+	rare := rand.Intn(maxRare-minRare) + minRare
+	for n := 0; n < rare; n++ {
+		// grab random item
+		command, err := loreQuery("index:dnd:rare", redisClient)
+		if err != nil {
+			glogger.Error.Println(err)
+		}
+		// if the array is empty, exit early
+		if len(command) <= 0 {
+			return
+		}
+		// pull random item
+		rand.Seed(time.Now().UnixNano())
+		rngItem := fmt.Sprint(command[rand.Intn(len(command))])
+
+		// get item details for shop message
+		rngItemName, _ := redisClient.HGet(rngItem, "name").Result()
+		rngItemRarity, _ := redisClient.HGet(rngItem, "rarity").Result()
+		rngItemPrice, _ := redisClient.HGet(rngItem, "price").Result()
+		rngItemType, _ := redisClient.HGet(rngItem, "type").Result()
+
+		// put together message
+		itemTable = append(itemTable, fmt.Sprintf("%s | %s | %s | %s", rngItemName, rngItemRarity, rngItemPrice, rngItemType))
+	}
+
+	//
+	// very rare:
+	//
+	// get very rare amount (rand.Intn(max - min) + min
+	rand.Seed(time.Now().UnixNano())
+	veryRare := rand.Intn(maxVeryRare-minVeryRare) + minVeryRare
+	for n := 0; n < veryRare; n++ {
+		// grab random item
+		command, err := loreQuery("index:dnd:very_rare", redisClient)
+		if err != nil {
+			glogger.Error.Println(err)
+		}
+		// if the array is empty, exit early
+		if len(command) <= 0 {
+			return
+		}
+		// pull random item
+		rand.Seed(time.Now().UnixNano())
+		rngItem := fmt.Sprint(command[rand.Intn(len(command))])
+
+		// get item details for shop message
+		rngItemName, _ := redisClient.HGet(rngItem, "name").Result()
+		rngItemRarity, _ := redisClient.HGet(rngItem, "rarity").Result()
+		rngItemPrice, _ := redisClient.HGet(rngItem, "price").Result()
+		rngItemType, _ := redisClient.HGet(rngItem, "type").Result()
+
+		// put together message
+		itemTable = append(itemTable, fmt.Sprintf("%s | %s | %s | %s", rngItemName, rngItemRarity, rngItemPrice, rngItemType))
+	}
+
+	// put together formatted discord message
+	bigMsg := "```\n"
+	bigMsg = bigMsg + columnize.SimpleFormat(itemTable)
+	bigMsg = bigMsg + "\n```"
+	s.ChannelMessageSend(m.ChannelID, bigMsg)
+}
+
 func dubsHandler(s *discordgo.Session, m *discordgo.MessageCreate, redisClient *redis.Client) {
 	// aka index:command:added
 	newType := fmt.Sprintf("index:dubs")