package nodomain.freeyourgadget.gadgetbridge.womp;

import android.app.Activity;
import android.webkit.JavascriptInterface;
import android.widget.Toast;

import org.json.JSONObject;

/**
 * WebView 与原生桥：网络请求、扫码、登录态。
 */
public class WompJsBridge {
    public interface Host {
        void scan(String callbackId);
        void closePage();
        void onLoggedIn();
        void onLogout();
        void evalJs(String script);
    }

    private final Activity activity;
    private final Host host;

    public WompJsBridge(Activity activity, Host host) {
        this.activity = activity;
        this.host = host;
    }

    @JavascriptInterface
    public String getSorter() {
        return WompSession.getSorterJson(activity);
    }

    @JavascriptInterface
    public String getSavedPhone() {
        return WompSession.getPhone(activity);
    }

    @JavascriptInterface
    public String getSavedPassword() {
        return WompSession.getPassword(activity);
    }

    @JavascriptInterface
    public void saveCredentials(String phone, String password) {
        WompSession.saveCredentials(activity, phone, password);
    }

    @JavascriptInterface
    public void toast(final String msg) {
        activity.runOnUiThread(() -> Toast.makeText(activity, msg, Toast.LENGTH_SHORT).show());
    }

    @JavascriptInterface
    public void scan(String callbackId) {
        activity.runOnUiThread(() -> host.scan(callbackId));
    }

    @JavascriptInterface
    public void close() {
        activity.runOnUiThread(host::closePage);
    }

    @JavascriptInterface
    public void loginSuccess(String json) {
        try {
            JSONObject obj = new JSONObject(json);
            String phone = obj.optString("phone");
            String password = obj.optString("password");
            WompSession.saveLogin(activity, phone, password, obj);
            activity.runOnUiThread(host::onLoggedIn);
        } catch (Exception e) {
            activity.runOnUiThread(() ->
                    Toast.makeText(activity, "登录数据异常", Toast.LENGTH_SHORT).show());
        }
    }

    @JavascriptInterface
    public void logout() {
        WompSession.clear(activity);
        activity.runOnUiThread(host::onLogout);
    }

    @JavascriptInterface
    public boolean isCheckedIn() {
        return WompSession.isCheckedIn(activity);
    }

    @JavascriptInterface
    public void setCheckedIn(boolean checkedIn) {
        WompSession.setCheckedIn(activity, checkedIn);
    }

    @JavascriptInterface
    public void getLocation(String callbackId) {
        activity.runOnUiThread(() -> WompLocation.fetch(activity, (ok, json) -> deliver(callbackId, ok, json)));
    }

    @JavascriptInterface
    public void request(String path, String jsonBody, final String callbackId) {
        JSONObject body;
        try {
            body = jsonBody == null || jsonBody.length() == 0 ? new JSONObject() : new JSONObject(jsonBody);
        } catch (Exception e) {
            deliver(callbackId, false, "{\"message\":\"参数错误\"}");
            return;
        }
        WompApi.post(path, body, (ok, resp) -> deliver(callbackId, ok, resp));
    }

    private void deliver(String callbackId, boolean ok, String body) {
        final String script = "window.__wompCb && window.__wompCb("
                + JSONObject.quote(callbackId) + "," + ok + "," + JSONObject.quote(body) + ")";
        activity.runOnUiThread(() -> host.evalJs(script));
    }
}