package com.gyf.csams.main.model

import androidx.lifecycle.LiveData
import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.ViewModel
import androidx.lifecycle.viewModelScope
import com.gyf.csams.NOT_IMPL_TIP
import com.gyf.csams.uikit.ScrollList
import com.gyf.csams.uikit.SendInterface
import com.gyf.csams.uikit.StringForm
import com.gyf.csams.util.randomChinese
import com.gyf.csams.util.randomNum
import com.orhanobut.logger.Logger
import kotlinx.coroutines.Job
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch

/**
 * 跑马灯
 *
 */
class MarqueeViewModel : ViewModel() {

    val marqueeTexts = listOf("床前明月光", "疑是地上霜", "举头望明月", "低头思故乡")

    private val _marqueeIndex = MutableLiveData(0)
    var marqueeIndex: LiveData<Int> = _marqueeIndex
    private var marqueeJob: Job? = null


    fun addAsync(delayMillis: Int) {
        if (marqueeJob == null || marqueeJob?.isCompleted == true) {
            marqueeJob = viewModelScope.launch {
                _marqueeIndex.postValue(
                    if (_marqueeIndex.value == marqueeTexts.size - 1) 0 else _marqueeIndex.value?.plus(
                        1
                    )
                )
                delay(timeMillis = delayMillis.toLong())
            }
        }
    }
}

/**
 * 社团
 *
 * @property name 社团名称
 */
data class AssociationDto(val name: String)

/**
 * 主页
 *
 */
class MainViewModel : ViewModel(), SendInterface {

    override val _openDialog: MutableLiveData<Boolean> = MutableLiveData()
    override val openDialog: LiveData<Boolean> = _openDialog

    override val newContent: StringForm = StringForm(formDesc = "留言", textLength = 30)

    override fun openDialog() {
        _openDialog.value = true
    }

    override fun closeDialog() {
        _openDialog.value = false
    }

    /**
     * TODO 发送留言
     *
     * @param callback
     */
    override fun send(callback: (message: String) -> Unit) {
        callback(NOT_IMPL_TIP)
    }
}

/**
 * 社团列表
 *
 */
class ListViewModel : ScrollList<AssociationDto>() {
    val name = StringForm(formDesc = "社团名称", textLength = 5)

    val desc = StringForm(formDesc = "社团简介", textLength = 10)

    //社团列表加载数量
    val associationListSize = 10

    //社团列表
    private val _associationList = MutableLiveData<MutableList<AssociationDto>>(mutableListOf())
    val associationDto: LiveData<MutableList<AssociationDto>> = _associationList

    val searchDesc = "搜索"


    /**
     * TODO 社团检索
     *
     * @param callback
     */
    fun search(callback: (value: String) -> Unit) {
        Logger.i("搜索条件[社团名称：${name.formValue.value},社团简介:${desc.formValue.value}]")
        callback(NOT_IMPL_TIP)
    }

    override val initSize: Int = 10

    init {
        load()

    }

    /**
     * 加载社团列表
     *
     */
    override fun load() {
        viewModelScope.launch {
            _associationList.value?.apply {
                repeat(
                    10
                ) {
                    add(AssociationDto(name = "社团${_associationList.value?.size}"))
                }

            }
            Logger.i("初始化社团列表size=${_associationList.value?.size}")
        }
    }

    /**
     * 加载更多社团列表
     *
     */
    override fun loadMore(callback: (message: String) -> Unit) {
        viewModelScope.launch {
            _associationList.value?.apply {
                val list = mutableListOf<AssociationDto>()
                list.addAll(this)
                list.apply {
                    repeat(10) {
                        add(AssociationDto(name = "社团${size}"))
                    }
                }
                Logger.i("t.size=${size}")
                _associationList.postValue(list)
                Logger.i("加载更多社团size=${_associationList.value?.size}")
                callback("成功加载更多社团")
            }
        }
    }
}

/**
 * 我的信息
 *
 * @property studentId 学号
 * @property name 姓名
 * @property duty 职务
 * @property headImg 头像
 * @property desc 个人简介
 */
data class InfoVo(
    val studentId: String,
    val name: String,
    val duty: String,
    val headImg: String,
    val desc: String
)

/**
 * 个人中心
 *
 */
class CenterViewModel : ViewModel() {
    val myAssociationDesc = "我的社团"
    val myJoinActivity = "我参加的社团活动"
    val myLikeActivity = "我点赞的社团活动"
    val myCollectActivity = "我收藏的社团活动"

    private val _info = MutableLiveData<InfoVo>()
    val info: LiveData<InfoVo> = _info

    init {
        load()
    }

    private fun load() {
        viewModelScope.launch {
            _info.value = InfoVo(
                studentId = randomNum(),
                name = randomChinese(3),
                duty = randomChinese(3),
                headImg = "",
                desc = randomChinese(10)
            )
        }

    }
}