user mention cache; update deps

go.mod

@@ -3,9 +3,9 @@ module github.com/diamondburned/cchat-discord
 go 1.14
 
 require (
-	github.com/diamondburned/arikawa/v2 v2.0.0-20201227001310-f3f075b27f44
+	github.com/diamondburned/arikawa/v2 v2.0.0-20210101083335-169b36126239
 	github.com/diamondburned/cchat v0.3.15
-	github.com/diamondburned/ningen/v2 v2.0.0-20201227034843-dc1d22fc28e4
+	github.com/diamondburned/ningen/v2 v2.0.0-20210101084041-d9a5058b63b5
 	github.com/dustin/go-humanize v1.0.0
 	github.com/go-test/deep v1.0.7
 	github.com/lithammer/fuzzysearch v1.1.1

go.sum

@@ -63,6 +63,9 @@ github.com/diamondburned/arikawa/v2 v2.0.0-20201220032235-088b30430377 h1:71BLnE
 github.com/diamondburned/arikawa/v2 v2.0.0-20201220032235-088b30430377/go.mod h1:e+lhS20ni2luFEU06Pc8paCxgZL99/RZb77dOC82CF0=
 github.com/diamondburned/arikawa/v2 v2.0.0-20201227001310-f3f075b27f44 h1:i6Jec7bvVY8NhwW3L0SlpfWM6r2p2i67XuhiOEzkfwI=
 github.com/diamondburned/arikawa/v2 v2.0.0-20201227001310-f3f075b27f44/go.mod h1:e+lhS20ni2luFEU06Pc8paCxgZL99/RZb77dOC82CF0=
+github.com/diamondburned/arikawa/v2 v2.0.0-20210101074829-c6d8c741e883/go.mod h1:e+lhS20ni2luFEU06Pc8paCxgZL99/RZb77dOC82CF0=
+github.com/diamondburned/arikawa/v2 v2.0.0-20210101083335-169b36126239 h1:ogL6/TJJecNYkvREJa+nHZ326b+QjHN/eLXMUtiyz/A=
+github.com/diamondburned/arikawa/v2 v2.0.0-20210101083335-169b36126239/go.mod h1:e+lhS20ni2luFEU06Pc8paCxgZL99/RZb77dOC82CF0=
 github.com/diamondburned/cchat v0.0.34 h1:BGiVxMRA9dmW3rLilIldBvjVan7eTTpaWCCfX9IKBYU=
 github.com/diamondburned/cchat v0.0.34/go.mod h1:+zXktogE45A0om4fT6B/z6Ii7FXNafjxsNspI0rlhbU=
 github.com/diamondburned/cchat v0.0.35 h1:WiMGl8BQJgbP9E4xRxgLGlqUsHpTcJgDKDt8/6a7lBk=
@@ -203,6 +206,8 @@ github.com/diamondburned/ningen/v2 v2.0.0-20201227020621-a4e33db11d3c h1:IWn/N54
 github.com/diamondburned/ningen/v2 v2.0.0-20201227020621-a4e33db11d3c/go.mod h1:zQkAo1RT4ru4HW6B5T4IRO2pee8ITzTUA2Y7XNpgjqo=
 github.com/diamondburned/ningen/v2 v2.0.0-20201227034843-dc1d22fc28e4 h1:ptIpcyB/FIBM5viKLVXuBiE1utqBcH4S3l5kUQrsL9Q=
 github.com/diamondburned/ningen/v2 v2.0.0-20201227034843-dc1d22fc28e4/go.mod h1:zQkAo1RT4ru4HW6B5T4IRO2pee8ITzTUA2Y7XNpgjqo=
+github.com/diamondburned/ningen/v2 v2.0.0-20210101084041-d9a5058b63b5 h1:GKqBXunV2AC/owpkiaFng1wPxgxE76sQ8HEPAHGj29o=
+github.com/diamondburned/ningen/v2 v2.0.0-20210101084041-d9a5058b63b5/go.mod h1:WRQCUX/dTH4OPEy3JANLA5D6fbumzp5zk03uSUAZppA=
 github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=

internal/segments/mention/user.go

@@ -64,7 +64,7 @@ func (m NameSegment) AsAvatarer() text.Avatarer   { return &m.um }
 // AsColorer only returns User if the user actually has a colored role.
 func (m NameSegment) AsColorer() text.Colorer {
 	if m.um.HasColor() {
-		return m.um
+		return &m.um
 	}
 	return nil
 }
@@ -75,6 +75,10 @@ type User struct {
 
 	Guild  discord.Guild
 	Member discord.Member
+
+	color        uint32
+	hasColor     bool
+	fetchedColor bool
 }
 
 var (
@@ -115,51 +119,53 @@ func (um *User) WithState(state *ningen.State) {
 }
 
 // HasColor returns true if the current user has a color.
-func (um User) HasColor() bool {
+func (um *User) HasColor() bool {
+	if um.fetchedColor {
+		return um.hasColor
+	}
+
 	// We don't have any member color if we have neither the member nor guild.
 	if !um.Guild.ID.IsValid() || !um.Member.User.ID.IsValid() {
+		um.fetchedColor = true
 		return false
 	}
 
 	g, err := um.store.Guild(um.Guild.ID)
 	if err != nil {
+		um.fetchedColor = true
 		return false
 	}
 
-	_, ok := MemberColor(*g, um.Member)
+	um.fetchedColor = true
-	return ok
+	um.color, um.hasColor = MemberColor(*g, um.Member)
+
+	return um.hasColor
 }
 
-func (um User) Color() uint32 {
+func (um *User) Color() uint32 {
-	g, err := um.store.Guild(um.Guild.ID)
+	if um.HasColor() {
-	if err != nil {
+		return text.SolidColor(um.color)
-		return colored.Blurple
 	}
 
-	color, ok := MemberColor(*g, um.Member)
+	return colored.Blurple
-	if !ok {
-		return colored.Blurple
-	}
-
-	return text.SolidColor(color)
 }
 
-func (um User) AvatarSize() int {
+func (um *User) AvatarSize() int {
 	return 96
 }
 
-func (um User) AvatarText() string {
+func (um *User) AvatarText() string {
 	if um.Member.Nick != "" {
 		return um.Member.Nick
 	}
 	return um.Member.User.Username
 }
 
-func (um User) Avatar() (url string) {
+func (um *User) Avatar() (url string) {
 	return urlutils.AvatarURL(um.Member.User.AvatarURL())
 }
 
-func (um User) MentionInfo() text.Rich {
+func (um *User) MentionInfo() text.Rich {
 	var content bytes.Buffer
 	var segment text.Rich