import type { ButtonInteraction, Interaction } from "discord.js";
import { MessageFlags } from "discord.js";
import type { InteractionStep, InteractionStepContext } from "../../types/Step";
import type { ButtonResource } from "../../types/Resource";
import { runMiddleware } from "../../types/Middleware";
import { createContext } from "../../core/context";

export const buttonInteractionStep: InteractionStep = {
  name: "button",

  match(interaction: Interaction): boolean {
    return interaction.isButton();
  },

  async handle(interaction: Interaction, { client, cache }: InteractionStepContext): Promise<void> {
    const i = interaction as ButtonInteraction;

    // Exact match first
    let button = cache.get<ButtonResource>("button", i.customId);

    // Prefix match for dynamic button IDs (e.g. "guild.MemberLogging-Kick-123")
    if (!button) {
      const allButtons = cache.getAll<ButtonResource>("button");
      for (const [id, btn] of allButtons) {
        if (i.customId.startsWith(id)) {
          button = btn;
          break;
        }
      }
    }

    if (!button) {
      await i.reply({
        content: `Sorry, but the button \`${i.customId}\` could not be found.`,
        flags: [MessageFlags.Ephemeral],
      });
      return;
    }

    const lines = [
      `# ButtonInteraction`,
      `### Metadata`,
      `- **Button:** \`${button.id}\``,
      `- **Custom ID:** \`${i.customId}\``,
      `- **User:** \`${i.user.tag}\` (${i.user.id})`,
      `- **Guild:** \`${i.guild?.name ?? "DM"}\` (${i.guildId ?? "N/A"})`,
      `- **Channel:** <#${i.channelId}>`,
    ];

    client.logger.send(lines.join("\n"));

    const ctx = createContext(client, button, i);

    await runMiddleware(button.use, i, client, () => button.execute(ctx));
  },
};