Delete Model Command (#150)

* Add: Delete Model Command

* Update: version increment

* Update: new command to tests

src/commands/deleteModel.ts

@@ -0,0 +1,60 @@
+import { ApplicationCommandOptionType, Client, CommandInteraction } from 'discord.js'
+import { UserCommand, SlashCommand } from '../utils/index.js'
+import { ollama } from '../client.js'
+import { ModelResponse } from 'ollama'
+
+export const DeleteModel: SlashCommand = {
+    name: 'delete-model',
+    description: 'deletes a model from the local list of models. Administrator Only.',
+    
+    // set available user options to pass to the command
+    options: [
+        {
+            name: 'model-name',
+            description: 'the name of the model to delete',
+            type: ApplicationCommandOptionType.String,
+            required: true
+        }
+    ],
+
+    // Delete Model locally stored
+    run: async (client: Client, interaction: CommandInteraction) => {
+        // defer reply to avoid timeout
+        await interaction.deferReply()
+        const modelInput: string = interaction.options.get('model-name')!!.value as string
+
+        // fetch channel and message
+        const channel = await client.channels.fetch(interaction.channelId)
+        if (!channel || !UserCommand.includes(channel.type)) return
+
+        // Admin Command
+        if (!interaction.memberPermissions?.has('Administrator')) {
+            interaction.reply({
+                content: `${interaction.commandName} is an admin command.\n\nPlease contact a server admin to pull the model you want.`,
+                ephemeral: true
+            })
+            return
+        }
+
+        // check if model exists
+        const modelExists: boolean = await ollama.list()
+            .then(response => response.models.some((model: ModelResponse) => model.name.startsWith(modelInput)))
+
+        try {
+            // call ollama to delete model
+            if (modelExists) {
+                await ollama.delete({ model: modelInput })
+                interaction.editReply({
+                    content: `**${modelInput}** was removed from the the library.`
+                })
+            } else
+                throw new Error()
+        } catch (error) {
+            // could not delete the model
+            interaction.reply({
+                content: `Could not delete the **${modelInput}** model. It probably doesn't exist or you spelled it incorrectly.\n\nPlease try again if this is a mistake.`,
+                ephemeral: true
+            })
+        }
+    }
+}