# KnowledgeArticlesViewModel.kt

    /*
     * The MIT License
     *
     * Original work sponsored and donated by The Danish Health Data Authority (http://www.sundhedsdatastyrelsen.dk)
     *
     * Copyright (C) 2021 The Danish Health Data Authority (http://www.sundhedsdatastyrelsen.dk)
     *
     *
     * Permission is hereby granted, free of charge, to any person obtaining a copy of
     * this software and associated documentation files (the "Software"), to deal in
     * the Software without restriction, including without limitation the rights to
     * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
     * of the Software, and to permit persons to whom the Software is furnished to do
     * so, subject to the following conditions:
     *
     *
     * The above copyright notice and this permission notice shall be included in all
     * copies or substantial portions of the Software.
     *
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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    package dk.nsp.mingraviditet.ui.main.knowledge.articles

    import androidx.hilt.Assisted
    import androidx.lifecycle.LiveData
    import androidx.lifecycle.MutableLiveData
    import androidx.lifecycle.SavedStateHandle
    import androidx.lifecycle.ViewModel
    import dagger.hilt.android.lifecycle.HiltViewModel
    import dk.nsp.domain.knowledge.Article
    import dk.nsp.domain.knowledge.ArticleCategory
    import dk.nsp.mingraviditet.ui.adapterviews.DetailsHeaderRow
    import dk.nsp.mingraviditet.ui.main.knowledge.viewbinding.ArticleCardBindingModel
    import dk.nsp.mingraviditet.ui.widgets.HeaderViewWithIconBindingModel
    import dk.nsp.mingraviditet.util.android.recycler.RecyclerAdapterView
    import dk.nsp.mingraviditet.util.extensions.toSingleEvent
    import dk.nsp.mingraviditet.util.livedata.SingleEvent
    import dk.nsp.util.TextModel
    import javax.inject.Inject

    @HiltViewModel
    class KnowledgeArticlesViewModel @Inject constructor(
        @Assisted private val savedStateHandle: SavedStateHandle
    ) : ViewModel() {

        private val articles = savedStateHandle.get<ArticleCategory>("category")

        private val _onData: MutableLiveData<List<RecyclerAdapterView<*>>> = MutableLiveData()
        val onData: LiveData<List<RecyclerAdapterView<*>>> = _onData

        private val _onArticleClicked: MutableLiveData<SingleEvent<Article>> = MutableLiveData()
        val onArticleClicked: LiveData<SingleEvent<Article>> = _onArticleClicked

        init {
            articles?.let { getArticlesForCategory(it) }
        }

        private fun getArticlesForCategory(articleCategory: ArticleCategory) {
            val articles = articleCategory.articles
            val rowsToShow = mutableListOf<RecyclerAdapterView<*>>()
            rowsToShow.add(
                DetailsHeaderRow(
                    HeaderViewWithIconBindingModel(
                        TextModel.Companion.from(
                            articleCategory.name
                        ),
                        TextModel.Companion.from(articleCategory.description),
                        null,
                        articleCategory.icon
                    )
                )
            )

            val articlesRows = articles.map { article ->
                ArticleCard(ArticleCardBindingModel(article) {
                    _onArticleClicked.postValue(article.toSingleEvent())
                })
            }
            rowsToShow.addAll(articlesRows)

            _onData.postValue(rowsToShow)
        }

    }