package com.mcivicm.editablespinner;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.text.Editable;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListPopupWindow;
import android.widget.PopupWindow;

import com.rengwuxian.materialedittext.MaterialEditText;

import java.util.Arrays;

/**
 * 材料视角可编辑的下拉框
 */

public class MaterialEditableSpinner extends LinearLayout {
    private ImageView mPullDown;
    private MaterialEditText mTextView;
    private AdapterView.OnItemClickListener onItemClickListener;
    private ListPopupWindow mPopup;
    private EditableSpinnerAdapter adapter;
    private boolean isIconUp = false;

    public MaterialEditableSpinner(Context context) {
        this(context, null, 0);
    }

    public MaterialEditableSpinner(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public MaterialEditableSpinner(Context context, AttributeSet attrs, int style) {
        super(context, attrs, style);
        init(attrs, style);
    }

    private void init(AttributeSet attrs, int style) {
        View v = LayoutInflater.from(getContext()).inflate(R.layout.view_material_editable_spinner, this, false);
        addView(v, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        mPullDown = (ImageView) v.findViewById(R.id.pull_down);
        mTextView = (MaterialEditText) v.findViewById(R.id.content_view);
        mPopup = new ListPopupWindow(getContext());
        mPopup.setModal(true);
        mPopup.setDropDownGravity(Gravity.BOTTOM);
        mPopup.setAnchorView(mTextView);
        mPopup.setOnDismissListener(new DismissListener());
        mPopup.setOnItemClickListener(new ItemClickListener());
        mPullDown.setOnClickListener(new PullDownClickListener());
    }

    public void setOnItemClickListener(AdapterView.OnItemClickListener onItemClickListener) {
        this.onItemClickListener = onItemClickListener;
    }

    public Editable getText() {
        return mTextView.getText();
    }

    public void setText(String text) {
        mTextView.setText(text);
    }

    public void setStrings(String... strings) {
        adapter = new DefaultEditableSpinnerAdapter(getContext(), Arrays.asList(strings));
        mPopup.setAdapter(adapter);
    }

    public EditableSpinnerAdapter getAdapter() {
        return adapter;
    }

    public void setAdapter(EditableSpinnerAdapter adapter) {
        this.adapter = adapter;
    }

    private class PullDownClickListener implements OnClickListener {

        @Override
        public void onClick(View v) {
            mTextView.requestFocus();
            if (isIconUp) {
                mPopup.dismiss();
            } else {
                hideSoftInput();//关闭输入法
                animateArrow(true);
                showPopup();
                isIconUp = true;
            }
        }
    }

    private void showPopup() {
        mPopup.setWidth(mTextView.getWidth());
        if (mPopup.getListView() != null) {
            mPopup.getListView().setVerticalScrollBarEnabled(false);
            mPopup.getListView().setHorizontalScrollBarEnabled(false);
        }
        mPopup.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
        mPopup.show();
    }

    private void animateArrow(boolean up) {
        float angle = up ? 180f : 0f;
        mPullDown.animate().rotation(angle).setDuration(100).start();
    }

    private class ItemClickListener implements AdapterView.OnItemClickListener {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            mTextView.setText(MaterialEditableSpinner.this.adapter.getDisplayString(position));
            mPopup.dismiss();
            if (MaterialEditableSpinner.this.onItemClickListener != null) {
                MaterialEditableSpinner.this.onItemClickListener.onItemClick(parent, view, position, id);
            }
        }
    }

    private class DismissListener implements PopupWindow.OnDismissListener {
        @Override
        public void onDismiss() {
            animateArrow(false);
            isIconUp = false;
        }
    }


    private void hideSoftInput() {
        InputMethodManager imm = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.hideSoftInputFromWindow(getWindowToken(), 0);
    }

    public void setFloatingLabel(int mode) {
        mTextView.setFloatingLabel(mode);
    }

    public void setFloatingLabelText(String text) {
        mTextView.setFloatingLabelText(text);
    }

    /**
     * 设置提示文本
     *
     * @param string
     */
    public void setHint(String string) {
        mTextView.setHint(string);
    }

    /**
     * 设置提示颜色
     *
     * @param color
     */
    public void setHintTextColor(int color) {
        mTextView.setHintTextColor(color);
    }

    /**
     * 设置文本颜色
     *
     * @param color
     */
    public void setTextColor(int color) {
        mTextView.setTextColor(color);
    }

    /**
     * 设置文本大小
     *
     * @param size
     */
    public void setTextSize(int size) {
        mTextView.setTextSize(size);
    }

    /**
     * 输入类型
     *
     * @param type
     */
    public void setInputType(int type) {
        mTextView.setInputType(type);
    }

    /**
     * 输入下拉框背景
     *
     * @param drawable
     */
    public void setPopupBackgroundDrawable(Drawable drawable) {
        mPopup.setBackgroundDrawable(drawable);
    }

    /**
     * 设置输入框的内边距
     *
     * @param left
     * @param top
     * @param right
     * @param bottom
     */
    public void setEditTextPadding(int left, int top, int right, int bottom) {
        mTextView.setPaddings(left, top, right, bottom);
    }

    /**
     * 设置最大字符数
     *
     * @param maxLength
     */
    public void setEditTextMaxLength(int maxLength) {
        mTextView.setMaxCharacters(maxLength);
    }

}