package com.xw.common.utils

import android.annotation.SuppressLint
import android.content.Context
import com.blankj.utilcode.util.GsonUtils
import com.xw.common.utils.LogUtils
import com.tencent.mmkv.MMKV

class MMKVManager {

    companion object {
        val TAG = "MMKVManager"

        @SuppressLint("StaticFieldLeak")
        @Volatile
        private var instance: MMKVManager? = null

        fun getInstance(): MMKVManager {
            return instance ?: synchronized(this) {
                instance ?: MMKVManager().also {
                    instance = it
                }
            }
        }
    }

    val isInit: Boolean get() = MMKV.getRootDir() != null

    val defaultMMKV: MMKV? by lazy { MMKV.defaultMMKV() }

    /**
     * 初始化方法
     *
     * 必须先调用一次该方法，才能正常使用其他方法、属性
     */
    fun init(context: Context) {
        if (isInit.not()) MMKV.initialize(context)
    }

    fun saveString(key: KeyPreferences, value: String) {
        if (isInit.not()) MMKV.initialize(AppGlobals.getApplication())
        defaultMMKV?.encode(key.value, value)
    }

    fun getString(key: KeyPreferences, default: String = ""): String {
        if (isInit.not()) MMKV.initialize(AppGlobals.getApplication())
        return defaultMMKV?.decodeString(key.value) ?: default
    }

    fun saveBoolean(key: KeyPreferences, value: Boolean) {
        if (isInit.not()) MMKV.initialize(AppGlobals.getApplication())
        defaultMMKV?.encode(key.value, value)
    }

    fun getBoolean(key: KeyPreferences, default: Boolean = false): Boolean {
        if (isInit.not()) MMKV.initialize(AppGlobals.getApplication())
        return defaultMMKV?.decodeBool(key.value, default) ?: default
    }

    fun <T> saveModel(key: KeyPreferences, value: T?) {
        value?.let {
            if (isInit.not()) MMKV.initialize(AppGlobals.getApplication())
            defaultMMKV?.encode(key.value, GsonUtils.toJson(it))
        }
    }

    fun deleteModel(key: KeyPreferences) {
        if (isInit.not()) MMKV.initialize(AppGlobals.getApplication())
        defaultMMKV?.encode(key.value, "")
    }

    inline fun <reified T> getModel(key: KeyPreferences): T? {
        if (isInit.not()) MMKV.initialize(AppGlobals.getApplication())
        val value = defaultMMKV?.decodeString(key.value)
        return try {
            GsonUtils.fromJson(value, T::class.java)
        } catch (e: Exception) {
            LogUtils.e(TAG, "model e = ${e.message}")
            null
        }
    }

    fun clear() {
        defaultMMKV?.clearAll()
    }
}

enum class KeyPreferences(val value: String) {
    TOKEN("token"),
    USER("user"),
    THIRD("third"),
    ACCIDENT("accident"),
    NEED_READ("needRead"), // 是否需要阅读协议
    NEED_UPDATE("needUpdate") // 是否升级
}