#!/usr/bin/env bun
// Ops CLI on the kit's dispatcher — the same layer graph as the plugin entry, so every
// command sees the exact services the runner runs. scan/detect/preview work offline;
// sync/uninstall talk to the host.
import {
	type CliCommand,
	ProviderClient,
	runPluginCli,
} from "@punktfunk/plugin-kit";
import { Effect } from "effect";
import pkg from "../package.json" with { type: "json" };
import { PLUGIN_NAME } from "./index.js";
import { type RomServices, romLayer } from "./layer.js";
import { PROVIDER_ID, RomSync } from "./services/engine.js";

const print = (line: string) => Effect.sync(() => console.log(line));

const commands: Record<string, CliCommand<RomServices>> = {
	scan: {
		summary: "Scan configured ROM roots and list candidates",
		offline: true,
		run: () =>
			Effect.gen(function* () {
				const sync = yield* RomSync;
				const { report } = yield* sync.preview;
				yield* print(
					`${report.considered} candidate(s), ${report.included} would be included`,
				);
				for (const [platform, n] of Object.entries(report.perPlatform)) {
					yield* print(`  ${platform}: ${n}`);
				}
			}),
	},
	detect: {
		summary: "Probe for installed emulators",
		offline: true,
		run: () =>
			Effect.gen(function* () {
				const sync = yield* RomSync;
				const detected = yield* sync.detect(true);
				for (const d of detected) {
					yield* print(
						`${d.id.padEnd(14)} ${d.via.padEnd(8)} ${d.exePath ?? d.exeToken}${d.cores ? ` (${d.cores.length} cores)` : ""}`,
					);
				}
				if (detected.length === 0) yield* print("no emulators found");
			}),
	},
	preview: {
		summary: "Dry-run: show the entries a sync would reconcile",
		offline: true,
		run: () =>
			Effect.gen(function* () {
				const sync = yield* RomSync;
				const { entries, report } = yield* sync.preview;
				for (const e of entries) yield* print(`${e.external_id}  ${e.title}`);
				for (const s of report.skipped) {
					yield* print(`SKIP ${s.external_id}: ${s.reason}`);
				}
				yield* print(
					`${report.included} included, ${report.skipped.length} skipped`,
				);
			}),
	},
	sync: {
		summary: "Reconcile the library provider now",
		run: () =>
			Effect.gen(function* () {
				const sync = yield* RomSync;
				const outcome = yield* sync.engine.sync("manual");
				yield* print(
					outcome._tag === "AlreadyRunning"
						? "a sync is already running"
						: `${outcome._tag}: ${outcome.report.included} entries`,
				);
			}),
	},
	uninstall: {
		summary: "Remove every rom-manager entry from the host library",
		run: () =>
			Effect.gen(function* () {
				const provider = yield* ProviderClient;
				yield* provider.remove(PROVIDER_ID);
				yield* print("provider entries removed");
			}),
	},
};

await runPluginCli({
	def: {
		name: PLUGIN_NAME,
		version: pkg.version,
		layer: romLayer,
		main: Effect.void,
	},
	commands,
});