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package com.summer.caidao.toast

import android.annotation.SuppressLint
import android.content.Context
import android.os.Handler
import android.os.Looper
import android.support.annotation.ColorInt
import android.support.annotation.DrawableRes
import android.support.annotation.LayoutRes
import android.support.annotation.StringRes
import android.text.SpannableString
import android.text.Spanned
import android.text.style.ForegroundColorSpan
import android.view.LayoutInflater
import android.view.View
import android.widget.Toast
import java.lang.ref.WeakReference


/**
 * Created by
 * User -> Summer
 * Date -> 2018/5/16
 *
 * Description: Toast工具类
 *
 */
const val DEFAULT_COLOR = 0x12000000

class CaidaoToast private constructor(context: Context) {

    private var mContext: Context = context

    private var backgroundColor = DEFAULT_COLOR
    private var messageColor = DEFAULT_COLOR
    private var mToast: Toast? = null
    private var bgResource = -1
    private var sViewWeakReference: WeakReference<View>? = null
    private var sHandler = Handler(Looper.getMainLooper())

    private var gravity = -1
    private var xOffset = -1
    private var yOffset = -1

    /**
     * 建造者模式,设置Toast的各种属性
     */
    class Builder(context: Context) {

        private var caidaoToast = CaidaoToast(context)

        /**
         * 设置位置
         */
        fun setGravity(gravity: Int, xOffset: Int, yOffset: Int): Builder {
            caidaoToast.gravity = gravity
            caidaoToast.xOffset = xOffset
            caidaoToast.yOffset = yOffset
            return this
        }

        /**
         * 设置View
         */
        fun setView(@LayoutRes layoutId: Int): Builder {
            val inflate = caidaoToast.mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
            caidaoToast.sViewWeakReference = WeakReference(inflate.inflate(layoutId, null))
            return this
        }

        /**
         * 设置View
         */
        fun setView(view: View): Builder {
            caidaoToast.sViewWeakReference = WeakReference(view)
            return this
        }

        /**
         * 设置背景颜色
         */
        fun setBackgroundColor(@ColorInt backgroundColor: Int): Builder {
            caidaoToast.backgroundColor = backgroundColor
            return this
        }

        /**
         * 设置背景资源
         */
        fun setBgResource(@DrawableRes bgResource: Int): Builder {
            caidaoToast.bgResource = bgResource
            return this
        }

        /**
         * 设置消息字体颜色
         */
        fun setMessageColor(@ColorInt messageColor: Int): Builder {
            caidaoToast.messageColor = messageColor
            return this
        }

        /**
         * 建造者
         */
        fun build(): CaidaoToast {
            return caidaoToast
        }
    }

    /**
     * 安全地显示短时吐司
     *
     * @param text 文本
     */
    fun showShortSafe(text: CharSequence) {
        sHandler.post { show(text, Toast.LENGTH_SHORT) }
    }

    /**
     * 安全地显示短时吐司
     *
     * @param resId 资源Id
     */
    fun showShortSafe(@StringRes resId: Int) {
        sHandler.post { show(resId, Toast.LENGTH_SHORT) }
    }

    /**
     * 安全地显示短时吐司
     *
     * @param resId 资源Id
     * @param args  参数
     */
    fun showShortSafe(@StringRes resId: Int, vararg args: Any) {
        sHandler.post { show(resId, Toast.LENGTH_SHORT, args) }
    }

    /**
     * 安全地显示短时吐司
     *
     * @param format 格式
     * @param args   参数
     */
    fun showShortSafe(format: String, vararg args: Any) {
        sHandler.post { show(format, Toast.LENGTH_SHORT, args) }
    }

    /**
     * 安全地显示长时吐司
     *
     * @param text 文本
     */
    fun showLongSafe(text: CharSequence) {
        sHandler.post { show(text, Toast.LENGTH_LONG) }
    }

    /**
     * 安全地显示长时吐司
     *
     * @param resId 资源Id
     */
    fun showLongSafe(@StringRes resId: Int) {
        sHandler.post { show(resId, Toast.LENGTH_LONG) }
    }

    /**
     * 安全地显示长时吐司
     *
     * @param resId 资源Id
     * @param args  参数
     */
    fun showLongSafe(@StringRes resId: Int, vararg args: Any) {
        sHandler.post { show(resId, Toast.LENGTH_LONG, args) }
    }

    /**
     * 安全地显示长时吐司
     *
     * @param format 格式
     * @param args   参数
     */
    fun showLongSafe(format: String, vararg args: Any) {
        sHandler.post { show(format, Toast.LENGTH_LONG, args) }
    }

    /**
     * 显示短时吐司
     *
     * @param text 文本
     */
    fun showShort(text: CharSequence) {
        show(text, Toast.LENGTH_SHORT)
    }

    /**
     * 显示短时吐司
     *
     * @param resId 资源Id
     */
    fun showShort(@StringRes resId: Int) {
        show(resId, Toast.LENGTH_SHORT)
    }

    /**
     * 显示短时吐司
     *
     * @param resId 资源Id
     * @param args  参数
     */
    fun showShort(@StringRes resId: Int, vararg args: Any) {
        show(resId, Toast.LENGTH_SHORT, args)
    }

    /**
     * 显示短时吐司
     *
     * @param format 格式
     * @param args   参数
     */
    fun showShort(format: String, vararg args: Any) {
        show(format, Toast.LENGTH_SHORT, args)
    }

    /**
     * 显示长时吐司
     *
     * @param text 文本
     */
    fun showLong(text: CharSequence) {
        show(text, Toast.LENGTH_LONG)
    }

    /**
     * 显示长时吐司
     *
     * @param resId 资源Id
     */
    fun showLong(@StringRes resId: Int) {
        show(resId, Toast.LENGTH_LONG)
    }

    /**
     * 显示长时吐司
     *
     * @param resId 资源Id
     * @param args  参数
     */
    fun showLong(@StringRes resId: Int, vararg args: Any) {
        show(resId, Toast.LENGTH_LONG, args)
    }

    /**
     * 显示长时吐司
     *
     * @param format 格式
     * @param args   参数
     */
    fun showLong(format: String, vararg args: Any) {
        show(format, Toast.LENGTH_LONG, args)
    }

    /**
     * 显示吐司
     *
     * @param resId    资源Id
     * @param duration 显示时长
     */
    private fun show(@StringRes resId: Int, duration: Int) {
        show(mContext.getString(resId), duration)
    }

    /**
     * 显示吐司
     *
     * @param resId    资源Id
     * @param duration 显示时长
     * @param args     参数
     */
    private fun show(@StringRes resId: Int, duration: Int, vararg args: Any) {
        show(String.format(mContext.getString(resId), args), duration)
    }

    /**
     * 显示吐司
     *
     * @param format   格式
     * @param duration 显示时长
     * @param args     参数
     */
    private fun show(format: String, duration: Int, vararg args: Any) {
        show(String.format(format, *args), duration)
    }

    /**
     * 显示吐司
     *
     * @param text     文本
     * @param duration 显示时长
     */
    @SuppressLint("ShowToast")
    private fun show(text: CharSequence, duration: Int) {
        cancel()
        if (text.isBlank()) return

        var isCustom = false
        val customView = sViewWeakReference?.get()
        if (null != customView) {
            mToast = Toast(mContext)
            mToast?.view = customView
            mToast?.duration = duration
            isCustom = true
        }

        if (!isCustom) {
            mToast = if (messageColor != DEFAULT_COLOR) {
                val spannableString = SpannableString(text)
                val colorSpan = ForegroundColorSpan(messageColor)
                spannableString.setSpan(colorSpan, 0, spannableString.length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
                Toast.makeText(mContext, spannableString, duration)
            } else {
                Toast.makeText(mContext, text, duration)
            }
        }

        val toastView = mToast?.view
        if (bgResource != -1) {
            toastView?.setBackgroundResource(bgResource)
        } else if (backgroundColor != DEFAULT_COLOR) {
            toastView?.setBackgroundColor(backgroundColor)
        }
        if (-1 != gravity && -1 != xOffset && -1 != yOffset) {
            mToast?.setGravity(gravity, xOffset, yOffset)
        }
        mToast?.show()
    }

    /**
     * 取消吐司显示
     */
    private fun cancel() {
        mToast?.cancel()
        mToast = null
    }


}