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/**
 * POWERED BY DAXNUTS - Easter egg for OpenCode + Kimi K2.5
 *
 * A heartfelt tribute to dax (@thdxr) for providing free Kimi K2.5 access via OpenCode.
 */

import type { Component, TUI } from "@earendil-works/pi-tui";
import { theme } from "../theme/theme.ts";

// 32x32 RGB image of dax, hex encoded (3 bytes per pixel)
const DAX_HEX =
	"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";

const WIDTH = 32;
const HEIGHT = 32;

function parseImage(): number[][][] {
	const pixels: number[][][] = [];
	for (let y = 0; y < HEIGHT; y++) {
		const row: number[][] = [];
		for (let x = 0; x < WIDTH; x++) {
			const idx = (y * WIDTH + x) * 6;
			const r = parseInt(DAX_HEX.slice(idx, idx + 2), 16);
			const g = parseInt(DAX_HEX.slice(idx + 2, idx + 4), 16);
			const b = parseInt(DAX_HEX.slice(idx + 4, idx + 6), 16);
			row.push([r, g, b]);
		}
		pixels.push(row);
	}
	return pixels;
}

function rgb(r: number, g: number, b: number, bg = false): string {
	return `\x1b[${bg ? 48 : 38};2;${r};${g};${b}m`;
}

const RESET = "\x1b[0m";

function buildImage(): string[] {
	const pixels = parseImage();
	const lines: string[] = [];

	// Use half-block chars: ▄ with bg=top pixel, fg=bottom pixel
	for (let row = 0; row < HEIGHT; row += 2) {
		let line = "";
		for (let x = 0; x < WIDTH; x++) {
			const top = pixels[row][x];
			const bottom = pixels[row + 1]?.[x] ?? top;
			line += `${rgb(bottom[0], bottom[1], bottom[2])}${rgb(top[0], top[1], top[2], true)}▄`;
		}
		line += RESET;
		lines.push(line);
	}
	return lines;
}

export class DaxnutsComponent implements Component {
	private ui: TUI;
	private image: string[];
	private interval: ReturnType<typeof setInterval> | null = null;
	private tick = 0;
	private maxTicks = 25; // ~2 seconds at 80ms
	private cachedLines: string[] = [];
	private cachedWidth = 0;
	private cachedTick = -1;

	constructor(ui: TUI) {
		this.ui = ui;
		this.image = buildImage();
		this.startAnimation();
	}

	invalidate(): void {
		this.cachedWidth = 0;
	}

	private startAnimation(): void {
		this.interval = setInterval(() => {
			this.tick++;
			if (this.tick >= this.maxTicks) {
				this.stopAnimation();
			}
			this.cachedWidth = 0;
			this.ui.requestRender();
		}, 80);
	}

	private stopAnimation(): void {
		if (this.interval) {
			clearInterval(this.interval);
			this.interval = null;
		}
	}

	render(width: number): string[] {
		if (width === this.cachedWidth && this.cachedTick === this.tick) {
			return this.cachedLines;
		}

		const t = theme;
		const lines: string[] = [];

		const center = (s: string) => {
			const visible = s.replace(/\x1b\[[0-9;]*m/g, "").length;
			const left = Math.max(0, Math.floor((width - visible) / 2));
			return " ".repeat(left) + s;
		};

		lines.push("");

		// Scanline reveal effect: show rows progressively
		const revealedRows = Math.min(
			this.image.length,
			Math.floor((this.tick / this.maxTicks) * (this.image.length + 3)),
		);

		for (let i = 0; i < this.image.length; i++) {
			if (i < revealedRows) {
				lines.push(center(this.image[i]));
			} else {
				// Show scan line
				if (i === revealedRows) {
					const scanline = "▓".repeat(WIDTH);
					lines.push(center(rgb(100, 200, 255) + scanline + RESET));
				} else {
					lines.push(center(" ".repeat(WIDTH)));
				}
			}
		}

		lines.push("");

		// Fade in text after image is revealed
		const textPhase = Math.max(0, this.tick - this.maxTicks * 0.6);
		if (textPhase > 0 || this.tick >= this.maxTicks) {
			lines.push(center(t.fg("accent", "Free Kimi K2.5 via OpenCode Zen")));
			lines.push(center(t.fg("success", '"Powered by daxnuts"')));
			lines.push(center(t.fg("muted", "— @thdxr")));
		} else {
			lines.push("");
			lines.push("");
			lines.push("");
		}

		lines.push("");
		if (textPhase > 2 || this.tick >= this.maxTicks) {
			lines.push(center(t.fg("dim", "Try OpenCode")));
			lines.push(center(t.fg("mdLink", "https://mistral.ai/news/mistral-vibe-2-0")));
		} else {
			lines.push("");
			lines.push("");
		}
		lines.push("");

		this.cachedLines = lines;
		this.cachedWidth = width;
		this.cachedTick = this.tick;
		return lines;
	}

	dispose(): void {
		this.stopAnimation();
	}
}