package com.duqing.missions.ui.login.view;

import android.app.Activity;
import android.graphics.Typeface;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.TypedValue;
import android.view.KeyEvent;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import androidx.annotation.Nullable;
import androidx.annotation.StringRes;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProvider;

import com.duqing.missions.R;
import com.duqing.missions.base.activities.BaseTitleBarActivity;
import com.duqing.missions.databinding.ActivityLoginBinding;


public class LoginActivity extends BaseTitleBarActivity<ActivityLoginBinding,LoginViewModel> {


    @Override
    public void initViews() {

        final EditText phoneEdit = binding.editPhone;
        final EditText passwordEditText = binding.editPassword;
        final Button loginButton = binding.login;

        viewModel.getLoginFormState().observe(this, new Observer<LoginFormState>() {
            @Override
            public void onChanged(@Nullable LoginFormState loginFormState) {
                if (loginFormState == null) {
                    return;
                }
                loginButton.setEnabled(loginFormState.isDataValid());
                if (loginFormState.getUsernameError() != null) {
                    phoneEdit.setError(getString(loginFormState.getUsernameError()));
                }
                if (loginFormState.getPasswordError() != null) {
                    passwordEditText.setError(getString(loginFormState.getPasswordError()));
                }
            }
        });
        viewModel.getLoginResult().observe(this, new Observer<LoginResult>() {
            @Override
            public void onChanged(@Nullable LoginResult loginResult) {
                if (loginResult == null) {
                    return;
                }
                if (loginResult.getError() != null) {
                    showLoginFailed(loginResult.getError());
                }
                if (loginResult.getSuccess() != null) {
                    updateUiWithUser(loginResult.getSuccess());
                }
                setResult(Activity.RESULT_OK);

                //Complete and destroy login activity once successful
                finish();
            }
        });
        binding.txtPasswordTitle.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                binding.containerVerify.setVisibility(View.GONE);
                binding.containerPassword.setVisibility(View.VISIBLE);
                checkedStyle(binding.txtPasswordTitle);
                unCheckStyle(binding.txtVerifyTitle);
            }
        });
        binding.txtVerifyTitle.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                binding.containerPassword.setVisibility(View.GONE);
                binding.containerVerify.setVisibility(View.VISIBLE);
                checkedStyle(binding.txtVerifyTitle);
                unCheckStyle(binding.txtPasswordTitle);
            }
        });
        TextWatcher afterTextChangedListener = new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
                // ignore
            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                // ignore
            }

            @Override
            public void afterTextChanged(Editable s) {
                viewModel.loginDataChanged(phoneEdit.getText().toString(),
                        passwordEditText.getText().toString());
            }
        };
        phoneEdit.addTextChangedListener(afterTextChangedListener);
        passwordEditText.addTextChangedListener(afterTextChangedListener);
        passwordEditText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
            @Override
            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
                if (actionId == EditorInfo.IME_ACTION_DONE) {
                    viewModel.login(phoneEdit.getText().toString(),
                            passwordEditText.getText().toString());
                }
                return false;
            }
        });
        loginButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                viewModel.login(phoneEdit.getText().toString(),passwordEditText.getText().toString());
            }
        });

        viewModel.getCountDown().observe(this, new Observer<Long>() {
            @Override
            public void onChanged(Long l) {
                if(l>0){
                    binding.textVerify.setTextColor(getResources().getColor(R.color.gray));
                    binding.textVerify.setEnabled(false);
                    binding.textVerify.setText("重新发送（"+l+"s）");
                }else{
                    binding.textVerify.setEnabled(true);
                    binding.textVerify.setTextColor(getResources().getColor(R.color.sky));
                    binding.textVerify.setText("获取验证码");
                }
            }
        });

        binding.textVerify.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                viewModel.startCountDown(0);
            }
        });

    }

    @Override
    public ViewModelProvider.Factory getViewModelFactory() {
        return new LoginViewModelFactory();
    }

    public void checkedStyle(TextView textView){
        textView.setTextSize(TypedValue.COMPLEX_UNIT_SP,17);
        textView.setTypeface(Typeface.defaultFromStyle(Typeface.BOLD));
    }

    public void unCheckStyle(TextView textView){
        textView.setTextSize(TypedValue.COMPLEX_UNIT_SP,14);
        textView.setTypeface(Typeface.defaultFromStyle(Typeface.NORMAL));
    }

    private void updateUiWithUser(LoggedInUserView model) {
        String welcome = getString(R.string.welcome) + model.getDisplayName();
        // TODO : initiate successful logged in experience
        Toast.makeText(getApplicationContext(), welcome, Toast.LENGTH_LONG).show();
    }

    private void showLoginFailed(@StringRes Integer errorString) {
        Toast.makeText(getApplicationContext(), errorString, Toast.LENGTH_SHORT).show();
    }
}