csamsclient/foreground/src/main/java/com/gyf/csams/association/model/AssociationViewModel.kt

package com.gyf.csams.association.model

import android.app.Application
import androidx.lifecycle.LiveData
import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.ViewModel
import androidx.lifecycle.viewModelScope
import com.google.gson.reflect.TypeToken
import com.gyf.csams.uikit.AssociationMenu
import com.gyf.csams.uikit.TopMenuInterface
import com.gyf.lib.model.ScrollViewModel
import com.gyf.lib.uikit.StringForm
import com.gyf.lib.util.*
import com.orhanobut.logger.Logger
import kotlinx.coroutines.launch


class AssociationViewModel : ViewModel(), TopMenuInterface<AssociationMenu> {

    override val _currentMenu: MutableLiveData<AssociationMenu> = MutableLiveData()
    override val currentMenu: LiveData<AssociationMenu> = _currentMenu

    /**
     * 下拉菜单状态
     */
    private val _expanded = MutableLiveData(false)
    val expanded: LiveData<Boolean> = _expanded

    private val _associationVo = MutableLiveData<AssociationMainVo>()
    val associationVo: LiveData<AssociationMainVo> = _associationVo

    fun load(id: Int) {
        viewModelScope.launch {
            HttpClient.post(
                Api.buildUrl(AssociationApi.Load),
                HttpCallback<AssociationMainVo>(action = "获取社团信息", onSuccess = {
                    it.body?.let { _associationVo.postValue(it) }
                }, typeToken = object : TypeToken<ApiResponse<AssociationMainVo>>() {}.type),
                jsonParam = ShowAssociationVo(id = id)
            )
        }
    }

    /**
     * 切换下拉菜单状态
     *
     */
    fun switchType() {
        _expanded.value?.let {
            _expanded.value = !it
        }
    }

    fun close() {
        _expanded.value = false
    }

}

/**
 * 社团会员
 *
 */
class MemberViewModel(application: Application) : ScrollViewModel<MemberVo>(application) {
    val name = StringForm(formDesc = "姓名关键字", 5)

    val search = "搜索"

    private val _memberList = MutableLiveData<MutableList<MemberVo>>(mutableListOf())

    val memberList = _memberList

    override val initSize: Int = 10

    init {
        load()
    }

    /**
     * 初始化成员
     *
     */
    override fun load() {
        viewModelScope.launch {
            _memberList.value?.apply {
                repeat(initSize) {
                    add(MemberVo(name = "成员${size + 1}"))
                }
                Logger.i("初始化社团成员size=$size")
            }

        }
    }


    /**
     * 加载更多成员
     *
     */
    override fun loadMore(callback: (message: String) -> Unit) {
        viewModelScope.launch {
            _memberList.value?.let {
                val t = mutableListOf<MemberVo>()
                t.addAll(it)
                t.apply {
                    repeat(10) {
                        add(MemberVo(name = "成员${t.size + 1}"))
                    }
                }
                _memberList.postValue(t)
                Logger.i("加载更多社团成员，size=${t.size}")
            }
        }
    }

    /**
     * TODO 社团成员搜索
     *
     * @param callback
     */
    fun search(callback: (value: String) -> Unit) {
        Logger.i("搜索条件[成员姓名：${name.formValue.value}]")
        callback(NOT_IMPL_TIP)
    }
}

class OngoingActViewModel : ViewModel() {
    private val _act = MutableLiveData<OngoingActVo>()
    val act: LiveData<OngoingActVo> = _act
}


/**
 * 历史活动
 *
 */
class HistoryActViewModel(application: Application) : ScrollViewModel<HistoryActVo>(application) {
    override val initSize = 10

    init {
        load()
    }

    override fun load() {
        viewModelScope.launch {
            _data.value?.apply {
                repeat(initSize) {
                    add(HistoryActVo(name = "活动${size + 1}"))
                }
                Logger.i("初始化活动数量：${size}")
            }
        }
    }

    override fun loadMore(callback: (message: String) -> Unit) {
        _data.value?.apply {
            val t = mutableListOf<HistoryActVo>()
            t.addAll(this)
            t.apply {
                repeat(10) {
                    add(HistoryActVo(name = "活动${t.size + 1}"))
                }
            }
            _data.postValue(t)
            callback("成功加载更多活动")
        }
    }
}