Add quotes (#1)

Quotes!

Co-authored-by: Kalle Struik <kalle@kallestruik.nl>
Reviewed-on: https://gitea.kallestruik.nl/kalle/discord-bot/pulls/1

.gitignore

@@ -1,6 +1,9 @@
 # Don't leak secrets
 config.json
 
+# And no test data either
+quotes.json
+
 .gradle
 build/
 !gradle/wrapper/gradle-wrapper.jar

src/main/kotlin/nl/kallestruik/discordbot/Bot.kt

@@ -7,22 +7,38 @@ import dev.kord.core.behavior.channel.createMessage
 import dev.kord.core.behavior.interaction.response.respond
 import dev.kord.core.builder.components.emoji
 import dev.kord.core.entity.channel.TextChannel
+import dev.kord.core.entity.interaction.GuildChatInputCommandInteraction
+import dev.kord.core.entity.interaction.InteractionCommand
 import dev.kord.core.event.interaction.GuildButtonInteractionCreateEvent
+import dev.kord.core.event.interaction.GuildChatInputCommandInteractionCreateEvent
 import dev.kord.core.on
+import dev.kord.rest.builder.interaction.string
 import dev.kord.rest.builder.message.create.actionRow
 import kotlinx.coroutines.flow.*
 import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.Json
 import nl.kallestruik.discordbot.config.Config
+import nl.kallestruik.discordbot.data.quotes.QuoteData
 import java.io.File
 
+val prettyJson = Json {
+    prettyPrint = true
+}
+
 suspend fun main() {
+    val quoteFile = File("quotes.json")
+    if (!quoteFile.exists())
+        quoteFile.writeText("[]") // Write an empty array if the file does not exist.
+
     val config: Config = Json.decodeFromString(File("config.json").readText())
+    val quotes: MutableList<QuoteData> = Json.decodeFromString(quoteFile.readText())
 
     val kord = Kord(config.token)
 
     val channel = kord.getChannel(Snowflake(config.roleChannelID)) as? TextChannel ?: return
 
+    // Delete old role selection messages
     val oldMessages = mutableSetOf<Snowflake>()
     channel.messages
         .filter { it.author == kord.getSelf() }
@@ -30,6 +46,7 @@ suspend fun main() {
         .toSet(oldMessages)
     channel.bulkDelete(oldMessages)
 
+    // Send the role selection message
     channel.createMessage {
         actionRow {
             for (role in config.roles) {
@@ -43,6 +60,32 @@ suspend fun main() {
         }
     }
 
+    // Create the quotes command. Does discord get mad if this gets done on every startup?
+    kord.createGuildChatInputCommand(Snowflake(config.guildID), "quotes", "Get a quote") {
+        string("query", "What to search for.")
+    }
+
+    kord.createGuildChatInputCommand(Snowflake(config.guildID), "quote", "Add a new quote") {
+        string("author", "The author of the quote.") {
+            required = true
+        }
+
+        string("quote", "The quote.") {
+            required = true
+        }
+    }
+
+    // Handle guild chat commands
+    kord.on<GuildChatInputCommandInteractionCreateEvent> {
+        val command = interaction.command
+        if (command.rootName == "quotes")
+            quotesCommandHandler(interaction, command, quotes)
+
+        if (command.rootName == "quote")
+            quoteCommandHandler(interaction, command, quotes, quoteFile)
+    }
+
+    // Handle guild chat buttons
     kord.on<GuildButtonInteractionCreateEvent> {
         val response = interaction.deferEphemeralResponse()
         val roleConfig = config.roles[interaction.data.data.customId.value]
@@ -68,5 +111,69 @@ suspend fun main() {
         }
     }
 
+    // Start the bot
     kord.login()
-}
+}
+
+suspend fun quoteCommandHandler(
+    interaction: GuildChatInputCommandInteraction,
+    command: InteractionCommand,
+    quotes: MutableList<QuoteData>,
+    quoteFile: File
+) {
+    val response = interaction.deferEphemeralResponse()
+
+    val author = command.strings["author"]!! // These are required so they can't be null
+    val quote = command.strings["quote"]!!.replace("\\n", "\n")
+    quotes.add(QuoteData(author, quote))
+
+    quoteFile.writeText(prettyJson.encodeToString(quotes))
+
+    response.respond {
+        content = "Added quote successfully!"
+    }
+}
+
+suspend fun quotesCommandHandler(
+    interaction: GuildChatInputCommandInteraction,
+    command: InteractionCommand,
+    quotes: MutableList<QuoteData>
+) {
+    val response = interaction.deferPublicResponse()
+
+    val query = Regex(command.strings["query"] ?: "", RegexOption.IGNORE_CASE)
+
+    val quotes = quotes.filter {
+        it.quote.contains(query) || it.author.contains(query)
+    }
+
+    if (quotes.isEmpty()) {
+        response.respond {
+            content = "No quotes found!"
+        }
+        return
+    }
+
+    response.respond {
+        content = "Search results for: $query"
+    }
+
+    var content = ""
+    for (quote in quotes) {
+        val quoteString = "**${quote.author}:** ${quote.quote}\n"
+        if (content.length + quoteString.length >= 2000) {
+            interaction.channel.createMessage {
+                this.content = content
+            }
+            content = quoteString
+            continue
+        }
+
+        content += quoteString
+    }
+
+    interaction.channel.createMessage {
+        this.content = content
+    }
+}
+

src/main/kotlin/nl/kallestruik/discordbot/data/quotes/QuoteData.kt

@@ -0,0 +1,9 @@
+package nl.kallestruik.discordbot.data.quotes
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class QuoteData(
+    val author: String,
+    val quote: String,
+)