import { Command } from "commander";
import chalk from "chalk";
import ora from "ora";
import { readManifest, addToManifest } from "../lib/manifest.js";
import { installSkill } from "./install.js";

export const restoreCommand = new Command("restore")
  .description("Install all skills from .skills.json manifest")
  .option("--dry-run", "Show what would be installed without installing")
  .action(async (options) => {
    const manifest = readManifest();
    const slugs = Object.keys(manifest.skills);

    if (slugs.length === 0) {
      console.log(chalk.yellow("No .skills.json found or no skills listed."));
      return;
    }

    if (options.dryRun) {
      console.log(chalk.bold(`Skills in .skills.json (${slugs.length}):\n`));
      for (const slug of slugs) {
        const entry = manifest.skills[slug];
        console.log(
          `  ${chalk.cyan(slug)} v${entry.version} (${entry.platform || "claude-code"})`,
        );
      }
      return;
    }

    const spinner = ora(
      `Restoring ${slugs.length} skill(s) from .skills.json...`,
    ).start();
    let installed = 0;
    let failed = 0;

    for (const slug of slugs) {
      const entry = manifest.skills[slug];
      spinner.text = `[${installed + failed + 1}/${slugs.length}] Installing ${slug} v${entry.version}...`;

      try {
        const result = await installSkill(slug, {
          version: entry.version,
          target: entry.platform || "claude-code",
        });
        addToManifest(slug, result.version, entry.platform || "claude-code");
        installed++;
      } catch (err) {
        spinner.warn(
          chalk.yellow(
            `  ${slug}: ${err instanceof Error ? err.message : "failed"}`,
          ),
        );
        spinner.start();
        failed++;
      }
    }

    if (failed > 0) {
      spinner.warn(
        `Restored ${installed}/${slugs.length} skills (${failed} failed)`,
      );
      process.exitCode = 1;
    } else {
      spinner.succeed(`All ${installed} skill(s) restored from .skills.json`);
    }
  });