package com.taskttl.data.viewmodel

import androidx.lifecycle.ViewModel
import androidx.lifecycle.viewModelScope
import com.taskttl.data.repository.CategoryRepository
import com.taskttl.data.repository.OnboardingRepository
import com.taskttl.data.state.OnboardingEvent
import kotlinx.coroutines.channels.Channel
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.receiveAsFlow
import kotlinx.coroutines.launch

/**
 * 入职视图模型
 * @author admin
 * @date 2025/10/05
 * @constructor 创建[OnboardingViewModel]
 * @param [onboardingRepository] 引导存储库
 * @param [categoryRepository] 类别存储库
 */
class OnboardingViewModel(
    private val onboardingRepository: OnboardingRepository,
    private val categoryRepository: CategoryRepository
) : ViewModel() {

    private val _events = Channel<OnboardingEvent>()
    val events: Flow<OnboardingEvent> = _events.receiveAsFlow()

    /**
     * 发送事件 - 提供统一的事件发送机制
     * @param event 事件
     */
    fun sendEvent(event: OnboardingEvent) {
        viewModelScope.launch {
            _events.trySend(event)
        }
    }

    /**
     * 标记引导完成
     */
    fun markOnboardingCompleted() {
        viewModelScope.launch {
            categoryRepository.initializeDefaultCategories()
            onboardingRepository.markLaunched()
            _events.trySend(OnboardingEvent.NavMain)
        }
    }
}