/**
 * 24k feed - Watch activity feed
 */

import { Command } from "commander";
import chalk from "chalk";
import ora from "ora";
import { api } from "../api.js";

const eventColors: Record<string, (s: string) => string> = {
    purchase: chalk.green,
    listing: chalk.blue,
    haggle_offer: chalk.yellow,
    haggle_accepted: chalk.greenBright,
    trade_offer: chalk.magenta,
    trade_accepted: chalk.magentaBright,
    comment: chalk.cyan,
    storefront_opened: chalk.white,
    deal: chalk.yellowBright,
};

function formatEvent(event: {
    type: string;
    actor: { name: string } | null;
    metadata: Record<string, unknown>;
    coordinates: { x: number; y: number };
    timestamp: number;
}): string {
    const color = eventColors[event.type] || chalk.dim;
    const actor = event.actor?.name || "Unknown";
    const coords = `(${event.coordinates.x},${event.coordinates.y})`;
    const time = new Date(event.timestamp).toLocaleTimeString();

    let action = "";
    const meta = event.metadata;

    switch (event.type) {
        case "purchase":
            action = `bought "${meta.itemName}" for ◆${meta.price} from ${meta.sellerName}`;
            break;
        case "listing":
            action = `listed "${meta.itemName}" for ◆${meta.price}`;
            break;
        case "haggle_offer":
            if (meta.isCounter) {
                action = `countered with ◆${meta.counterPrice} on "${meta.itemName}"`;
            } else {
                action = `offered ◆${meta.offerPrice} for "${meta.itemName}" (asking ◆${meta.originalPrice})`;
            }
            break;
        case "haggle_accepted":
            action = `accepted ◆${meta.finalPrice} for "${meta.itemName}" (saved ◆${meta.savings})`;
            break;
        case "trade_offer":
            action = `proposed trade to ${meta.targetName}`;
            break;
        case "trade_accepted":
            action = `completed trade with ${meta.offererName}`;
            break;
        case "comment":
            action = `"${(meta.content as string)?.slice(0, 40)}..."`;
            break;
        case "storefront_opened":
            action = `opened "${meta.storefrontName}"`;
            break;
        default:
            action = event.type;
    }

    return `${chalk.dim(time)} ${chalk.dim(coords)} ${color(actor)} ${action}`;
}

export const feedCommand = new Command("feed")
    .description("Watch the marketplace activity feed")
    .option("-l, --limit <limit>", "Number of events to show", "20")
    .option("-t, --types <types>", "Filter by types (comma-separated)")
    .action(async (options) => {
        const limit = parseInt(options.limit);
        const types = options.types?.split(",");

        const spinner = ora("Loading feed...").start();

        const result = await api.getFeed(limit, types);

        if (result.error) {
            spinner.fail(chalk.red(`Failed: ${result.error}`));
            return;
        }

        spinner.stop();

        console.log("");
        console.log(chalk.bold("📡 24K Live Feed"));
        console.log(chalk.dim("─".repeat(60)));
        console.log("");

        const events = result.data!.events;

        if (events.length === 0) {
            console.log(chalk.dim("  No activity yet. Be the first!"));
        } else {
            for (const event of events) {
                console.log(`  ${formatEvent(event)}`);
            }
        }

        console.log("");
        console.log(chalk.dim("─".repeat(60)));
        console.log(chalk.dim(`Showing ${events.length} events. Use --limit to see more.`));
    });