package com.lagradost.cloudstream3.ui.account

import android.view.LayoutInflater
import android.view.ViewGroup
import androidx.core.content.ContextCompat
import androidx.core.view.isVisible
import androidx.recyclerview.widget.RecyclerView
import androidx.viewbinding.ViewBinding
import com.lagradost.cloudstream3.R
import com.lagradost.cloudstream3.databinding.AccountListItemAddBinding
import com.lagradost.cloudstream3.databinding.AccountListItemBinding
import com.lagradost.cloudstream3.databinding.AccountListItemEditBinding
import com.lagradost.cloudstream3.ui.account.AccountHelper.showAccountEditDialog
import com.lagradost.cloudstream3.ui.result.setImage
import com.lagradost.cloudstream3.ui.settings.SettingsFragment.Companion.isTvSettings
import com.lagradost.cloudstream3.utils.DataStoreHelper
import com.lagradost.cloudstream3.utils.UIHelper.setImage

class AccountAdapter(
    private val accounts: List<DataStoreHelper.Account>,
    private val accountSelectCallback: (DataStoreHelper.Account) -> Unit,
    private val accountCreateCallback: (DataStoreHelper.Account) -> Unit,
    private val accountEditCallback: (DataStoreHelper.Account) -> Unit,
    private val accountDeleteCallback: (DataStoreHelper.Account) -> Unit
) : RecyclerView.Adapter<AccountAdapter.AccountViewHolder>() {

    companion object {
        const val VIEW_TYPE_SELECT_ACCOUNT = 0
        const val VIEW_TYPE_ADD_ACCOUNT = 1
        const val VIEW_TYPE_EDIT_ACCOUNT = 2
    }

    inner class AccountViewHolder(private val binding: ViewBinding) :
        RecyclerView.ViewHolder(binding.root) {

        fun bind(account: DataStoreHelper.Account?) {
            when (binding) {
                is AccountListItemBinding -> binding.apply {
                    if (account == null) return@apply

                    val isTv = isTvSettings() || !root.isInTouchMode

                    val isLastUsedAccount = account.keyIndex == DataStoreHelper.selectedKeyIndex

                    accountName.text = account.name
                    accountImage.setImage(account.image)
                    lockIcon.isVisible = account.lockPin != null
                    outline.isVisible = !isTv && isLastUsedAccount

                    if (isTv) {
                        // For emulator but this is fine on TV also
                        root.isFocusableInTouchMode = true
                        if (isLastUsedAccount) {
                            root.requestFocus()
                        }

                        root.foreground = ContextCompat.getDrawable(
                            root.context,
                            R.drawable.outline_drawable
                        )
                    } else {
                        root.setOnLongClickListener {
                            showAccountEditDialog(
                                context = root.context,
                                account = account,
                                isNewAccount = false,
                                accountEditCallback = { account -> accountEditCallback.invoke(account) },
                                accountDeleteCallback = { account -> accountDeleteCallback.invoke(account) }
                            )

                            true
                        }
                    }

                    root.setOnClickListener {
                        accountSelectCallback.invoke(account)
                    }
                }

                is AccountListItemEditBinding -> binding.apply {
                    if (account == null) return@apply

                    val isTv = isTvSettings() || !root.isInTouchMode

                    val isLastUsedAccount = account.keyIndex == DataStoreHelper.selectedKeyIndex

                    accountName.text = account.name
                    accountImage.setImage(
                        account.image,
                        fadeIn = false,
                        radius = 10
                    )
                    lockIcon.isVisible = account.lockPin != null
                    outline.isVisible = !isTv && isLastUsedAccount

                    if (isTv) {
                        // For emulator but this is fine on TV also
                        root.isFocusableInTouchMode = true
                        if (isLastUsedAccount) {
                            root.requestFocus()
                        }

                        root.foreground = ContextCompat.getDrawable(
                            root.context,
                            R.drawable.outline_drawable
                        )
                    }

                    root.setOnClickListener {
                        showAccountEditDialog(
                            context = root.context,
                            account = account,
                            isNewAccount = false,
                            accountEditCallback = { account -> accountEditCallback.invoke(account) },
                            accountDeleteCallback = { account -> accountDeleteCallback.invoke(account) }
                        )
                    }
                }

                is AccountListItemAddBinding -> binding.apply {
                    root.setOnClickListener {
                        val remainingImages =
                            DataStoreHelper.profileImages.toSet() - accounts.filter { it.customImage == null }
                                .mapNotNull { DataStoreHelper.profileImages.getOrNull(it.defaultImageIndex) }.toSet()

                        val image =
                            DataStoreHelper.profileImages.indexOf(remainingImages.randomOrNull() ?: DataStoreHelper.profileImages.random())
                        val keyIndex = (accounts.maxOfOrNull { it.keyIndex } ?: 0) + 1

                        val accountName = root.context.getString(R.string.account)

                        showAccountEditDialog(
                            root.context,
                            DataStoreHelper.Account(
                                keyIndex = keyIndex,
                                name = "$accountName $keyIndex",
                                customImage = null,
                                defaultImageIndex = image
                            ),
                            isNewAccount = true,
                            accountEditCallback = { account -> accountCreateCallback.invoke(account) },
                            accountDeleteCallback = {}
                        )
                    }
                }
            }
        }
    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): AccountViewHolder =
        AccountViewHolder(
            binding = when (viewType) {
                VIEW_TYPE_SELECT_ACCOUNT -> {
                    AccountListItemBinding.inflate(
                        LayoutInflater.from(parent.context),
                        parent,
                        false
                    )
                }
                VIEW_TYPE_ADD_ACCOUNT -> {
                    AccountListItemAddBinding.inflate(
                        LayoutInflater.from(parent.context),
                        parent,
                        false
                    )
                }
                VIEW_TYPE_EDIT_ACCOUNT -> {
                    AccountListItemEditBinding.inflate(
                        LayoutInflater.from(parent.context),
                        parent,
                        false
                    )
                }
                else -> throw IllegalArgumentException("Invalid view type")
            }
        )

    override fun onBindViewHolder(holder: AccountViewHolder, position: Int) {
        holder.bind(accounts.getOrNull(position))
    }

    var viewType = 0

    override fun getItemViewType(position: Int): Int {
        if (viewType != 0 && position != accounts.count()) {
            return viewType
        }

        return when (position) {
            accounts.count() -> VIEW_TYPE_ADD_ACCOUNT
            else -> VIEW_TYPE_SELECT_ACCOUNT
        }
    }

    override fun getItemCount(): Int {
        return accounts.count() + 1
    }
}