# ArticleParagraphCardRow.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
     * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     * SOFTWARE.
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    package dk.nsp.mingraviditet.ui.main.knowledge.article

    import android.annotation.SuppressLint
    import android.graphics.drawable.TransitionDrawable
    import com.commonsense.android.kotlin.views.extensions.gone
    import com.commonsense.android.kotlin.views.extensions.visibleOrGone
    import dk.nsp.domain.knowledge.ArticleContentSection
    import dk.nsp.mingraviditet.R
    import dk.nsp.mingraviditet.databinding.ArticleParagraphCardRowBinding
    import dk.nsp.mingraviditet.extensions.disable
    import dk.nsp.mingraviditet.extensions.visibleOnTrue
    import dk.nsp.mingraviditet.util.android.OpenExternalLinksInBrowserWebViewClient
    import dk.nsp.mingraviditet.util.android.WebViewHelper
    import dk.nsp.mingraviditet.util.android.WebViewHelper.setUpDarkModeSupport
    import dk.nsp.mingraviditet.util.android.recycler.BindingViewHolder
    import dk.nsp.mingraviditet.util.android.recycler.DelegationListAdapterInflater
    import dk.nsp.mingraviditet.util.android.recycler.RecyclerAdapterView
    import dk.nsp.mingraviditet.util.extensions.bindingadapters.isTextEllipsized
    import dk.nsp.shared.util.launchDefault
    import kotlinx.coroutines.CoroutineScope
    import kotlinx.coroutines.Dispatchers
    import kotlinx.coroutines.delay

    class ArticleParagraphCardRow(
        val model: ArticleContentSection,
        val relevantId: Int
    ) :
        RecyclerAdapterView<ArticleParagraphCardRowBinding> {

        @SuppressLint("SetJavaScriptEnabled", "ClickableViewAccessibility")
        override fun bindData(viewHolder: BindingViewHolder<ArticleParagraphCardRowBinding>) {
            viewHolder.binding.articleContent = model

            viewHolder.binding.webview.webViewClient =
                OpenExternalLinksInBrowserWebViewClient(viewHolder.binding.root.context)

            viewHolder.binding.webview.apply {
                setUpDarkModeSupport()

                // Enable js to be able to show videoes
                settings.javaScriptEnabled = true
                settings.useWideViewPort = false
                settings.loadWithOverviewMode = false

                // Disable scroll on touch
                disable()

                val htmlToLoad = WebViewHelper.createHtmlWithStyleSheet(
                    model.content,
                    viewHolder.binding.root.context
                )
                loadDataWithBaseURL("file:///android_asset/", htmlToLoad, "text/html", "UTF-8", "")
            }

            // Show small animation when coming from search
            if (relevantId == model.id) {
                val transition = viewHolder.binding.rowBackground.background as TransitionDrawable

                CoroutineScope(Dispatchers.Main).launchDefault {
                    transition.startTransition(250)
                    delay(500)
                    transition.reverseTransition(500)
                }

                toggleExpandCollapseState(viewHolder.binding)
            } else {
                // Otherwise ensure that the card isExpanded state matches current models value
                updateForNewExpandedState(viewHolder.binding)
            }

            // Always default button to gone, otherwise it can flicker on fast scrolling
            viewHolder.binding.expandCollapseButton.gone()
            viewHolder.binding.expandCollapseButton.setOnClickListener {
                toggleExpandCollapseState(viewHolder.binding)
            }

            viewHolder.binding.executePendingBindings()
            viewHolder.binding.contentBody.post {
                viewHolder.binding.expandCollapseButton.visibleOnTrue(
                    viewHolder.binding.contentBody.isTextEllipsized()
                        ||  model.isExpanded
                            || viewHolder.binding.contentBody.text.isBlank()
                )
            }
        }

        private fun toggleExpandCollapseState(binding: ArticleParagraphCardRowBinding) {
            model.isExpanded = !model.isExpanded
            updateForNewExpandedState(binding)
        }

        private fun updateForNewExpandedState(binding: ArticleParagraphCardRowBinding) {
            binding.webview.visibleOrGone(model.isExpanded)
            binding.contentBody.visibleOrGone(!model.isExpanded)

            if (model.isExpanded) {
                binding.expandCollapseButton.setText(R.string.common_cta_collapse)
            } else {
                binding.expandCollapseButton.setText(R.string.common_cta_expand)
            }
        }

        override val createHolderFunction: DelegationListAdapterInflater<ArticleParagraphCardRowBinding> =
            ArticleParagraphCardRowBinding::inflate

        override fun isContentTheSameAsInternal(other: RecyclerAdapterView<*>): Boolean = when(other) {
            is ArticleParagraphCardRow -> other.model == model && other.relevantId == relevantId
            else -> false
        }
    }