package su.xserver.iikocon.handler;

import io.vertx.core.json.JsonObject;
import io.vertx.ext.web.RoutingContext;
import su.xserver.iikocon.service.UserService;

public class SetupHandler {
  private final UserService userService;

  public SetupHandler(UserService userService) {
    this.userService = userService;
  }

  public void checkStatus(RoutingContext ctx) {
    userService.countUsers().onComplete(ar -> {
      if (ar.succeeded()) {
        ctx.response()
          .putHeader("Content-Type", "application/json")
          .end(new JsonObject()
            .put("needsSetup", ar.result() == 0)
            .put("userCount", ar.result())
            .encode());
      } else {
        ctx.response().setStatusCode(500).end(ar.cause().getMessage());
      }
    });
  }

  public void handleSetup(RoutingContext ctx) {
    userService.countUsers().onComplete(ar -> {
      if (ar.succeeded() && ar.result() == 0) {
        JsonObject body = ctx.body().asJsonObject();

        if (body == null) {
          ctx.response().setStatusCode(400).end("Invalid JSON body");
          return;
        }

        String login = body.getString("login");
        String password = body.getString("password");
        String email = body.getString("email");

        if (email == null || email.isBlank()) {
          email = login + "@admin.local"; // значение по умолчанию
        }

        if (login == null || password == null || login.length() < 3 || password.length() < 6) {
          ctx.response().setStatusCode(400)
            .end(new JsonObject()
              .put("error", "Invalid login or password (min 3/6 chars)")
              .encode());
          return;
        }

        String clientIp = ctx.get("realClientIp");
        if (clientIp == null) {
          clientIp = ctx.request().remoteAddress().host();
        }
        userService.createUser(login, email, password, clientIp, true, "admin").onComplete(cr -> {
          if (cr.succeeded()) {
            ctx.response().setStatusCode(201)
              .end(new JsonObject().put("success", true).encode());
          } else {
            ctx.response().setStatusCode(500)
              .end(new JsonObject()
                .put("error", "Failed to create admin: " + cr.cause().getMessage())
                .encode());
          }
        });
      } else {
        ctx.response().setStatusCode(403)
          .end(new JsonObject()
            .put("error", "Setup already completed")
            .encode());
      }
    });
  }
}