modules/config+gacha: Make gacha rewards configurable

modules/config/config.go

@@ -12,6 +12,7 @@ type config struct {
 	PrestigeRequirement int        `json:"prestigeFactor"`
 	StarChannel         string     `json:"starChannel"`
 	BotToken            string     `json:"token"`
+	Rewards             []Reward   `json:"rewards"`
 	LevelRoles          []string   `json:"roles"`
 }
 
@@ -20,6 +21,13 @@ type activeNerf struct {
 	NotInGeneralNerf int    `json:"nerfFactor"`
 }
 
+type Reward struct {
+	FriendlyName string                 `json:"friendlyName"`
+	Type         string                 `json:"type"`
+	Weight       int                    `json:"weight"`
+	Context      map[string]interface{} `json:"context"`
+}
+
 func init() {
 	configFile, err := ioutil.ReadFile("config.json")
 	if err != nil {
@@ -40,6 +48,13 @@ func init() {
 	StarChannel = output.StarChannel
 	BotToken = output.BotToken
 	LevelRoles = output.LevelRoles
+	Rewards = output.Rewards
+	if len(Rewards) == 0 {
+		panic("modules/config: Gacha rewards not provided")
+	}
+	for _, v := range output.Rewards {
+		TotalRewardWeight += v.Weight
+	}
 }
 
 //Exposed Variables
@@ -53,3 +68,7 @@ var PrestigeRequirement int
 var StarChannel string
 var BotToken string
 var LevelRoles []string
+var (
+	Rewards           []Reward
+	TotalRewardWeight int
+)

modules/gacha/reward.go

@@ -0,0 +1,34 @@
+package gacha
+
+import (
+	"fmt"
+
+	"github.com/bwmarrin/discordgo"
+
+	"PermissionGacha/modules/config"
+)
+
+func rewardToUser(s *discordgo.Session, reward config.Reward, rewardee *discordgo.Member) (bool, error) {
+	switch reward.Type {
+	case "role":
+		return rewardRole(s, reward, rewardee)
+	}
+	return false, fmt.Errorf("gacha: rewardToUser: unknown reward type: %s", reward.Type)
+}
+
+func rewardRole(s *discordgo.Session, reward config.Reward, rewardee *discordgo.Member) (bool, error) {
+	roleID, found := reward.Context["id"].(string)
+	if !found {
+		return false, fmt.Errorf("gacha: rewardRole: `id` not passed to reward with type `role`")
+	}
+	for _, v := range rewardee.Roles {
+		if v == roleID {
+			return false, nil
+		}
+	}
+	err := s.GuildMemberRoleAdd(config.GuildID, rewardee.User.ID, roleID)
+	if err != nil {
+		return false, err
+	}
+	return true, nil
+}

modules/gacha/rewards.go

@@ -1,50 +0,0 @@
-package gacha
-
-import (
-	"github.com/bwmarrin/discordgo"
-
-	"PermissionGacha/modules/config"
-)
-
-type reward struct {
-	FriendlyName string
-	Reward       func(s *discordgo.Session, member *discordgo.Member) (bool, error)
-}
-
-var gachaRewards = []reward{
-	reward{
-		FriendlyName: "View Audit Log",
-		Reward:       generateRoleReward("645856347258093568"),
-	},
-	reward{
-		FriendlyName: "Manage Webhook",
-		Reward:       generateRoleReward("645856081750523914"),
-	},
-	reward{
-		FriendlyName: "Change Nickname",
-		Reward:       generateRoleReward("645977231281356800"),
-	},
-	reward{
-		FriendlyName: "Use Voice Activity",
-		Reward:       generateRoleReward("645880647474479115"),
-	},
-	reward{
-		FriendlyName: "Embed Link",
-		Reward:       generateRoleReward("645977361254318080"),
-	},
-}
-
-func generateRoleReward(roleID string) func(s *discordgo.Session, member *discordgo.Member) (bool, error) {
-	return func(s *discordgo.Session, member *discordgo.Member) (bool, error) {
-		for _, v := range member.Roles {
-			if v == roleID {
-				return false, nil
-			}
-		}
-		err := s.GuildMemberRoleAdd(config.GuildID, member.User.ID, roleID)
-		if err != nil {
-			return false, err
-		}
-		return true, nil
-	}
-}

modules/gacha/roll.go

@@ -20,8 +20,13 @@ func RollReward(s *discordgo.Session, rewardeeID string, timesToReward int) erro
 	rewardCount := make(map[int]map[bool]int)
 	shardCount := 0
 	for i := 0; i < timesToReward; i++ {
-		rewardID := rand.Intn(len(gachaRewards))
-		success, err := gachaRewards[rewardID].Reward(s, rewardee)
+		rewardWeightCount := rand.Intn(config.TotalRewardWeight)
+		var rewardID int
+		for rewardWeightCount > config.Rewards[rewardID].Weight {
+			rewardWeightCount -= config.Rewards[rewardID].Weight
+			rewardID++
+		}
+		success, err := rewardToUser(s, config.Rewards[rewardID], rewardee)
 		if err != nil {
 			return err
 		}
@@ -56,7 +61,7 @@ func RollReward(s *discordgo.Session, rewardeeID string, timesToReward int) erro
 					channel.ID,
 					fmt.Sprintf(
 						"**GACHA >** <@%s>, you just levelled up! You got __%s__.",
-						rewardeeID, gachaRewards[k].FriendlyName,
+						rewardeeID, config.Rewards[k].FriendlyName,
 					),
 				)
 			} else {
@@ -65,7 +70,7 @@ func RollReward(s *discordgo.Session, rewardeeID string, timesToReward int) erro
 					channel.ID,
 					fmt.Sprintf(
 						"**GACHA >** <@%s>, you just levelled up! You originally got __%s__ but you got a shard instead.",
-						rewardeeID, gachaRewards[k].FriendlyName,
+						rewardeeID, config.Rewards[k].FriendlyName,
 					),
 				)
 			}
@@ -76,7 +81,7 @@ func RollReward(s *discordgo.Session, rewardeeID string, timesToReward int) erro
 			rewardeeID, timesToReward,
 		)
 		for k, v := range rewardCount {
-			msg += fmt.Sprintf("\n- __%s__", gachaRewards[k].FriendlyName)
+			msg += fmt.Sprintf("\n- __%s__ x%d", config.Rewards[k].FriendlyName, v[true]+v[false])
 			if v[false] > 0 {
 				msg += fmt.Sprintf(" (%d converted to shards)", v[false])
 			}