import type { InstallContext } from "../types/context";
import { readText, renderTemplate, writeText } from "../lib/fs";
import { runVisible } from "../lib/process";

export async function deploySystemd(context: InstallContext): Promise<void> {
  const values = {
    UI_BIND_HOST: context.config.uiBindHost,
    UI_PORT: context.config.uiPort,
    INSTALL_DIR: context.config.installDir,
    DATA_DIR: context.config.dataDir,
    LOG_DIR: context.config.logDir
  };

  const hysteriaUnit = await readText(`${context.options.packageDir}/systemd/hysteria-server.service`);
  const adminUnit = renderTemplate(await readText(`${context.options.packageDir}/systemd/hy2xs-admin.service`), values);

  await writeText("/etc/systemd/system/hysteria-server.service", hysteriaUnit, 0o644);
  await writeText("/etc/systemd/system/hy2xs-admin.service", adminUnit, 0o644);
  await runVisible`systemctl daemon-reload`;
  await runVisible`systemctl enable hysteria-server hy2xs-admin`;
}