asfoury/projmag

package com.sdp13epfl2021.projmag.adapter

import android.app.Activity
import android.content.Context
import android.content.Intent
import android.content.res.Resources
import android.graphics.Color
import android.os.Parcelable
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.Button
import android.widget.TextView
import android.widget.Toast
import androidx.cardview.widget.CardView
import androidx.recyclerview.widget.RecyclerView
import com.sdp13epfl2021.projmag.MainActivity
import com.sdp13epfl2021.projmag.R
import com.sdp13epfl2021.projmag.activities.CVDisplayActivity
import com.sdp13epfl2021.projmag.activities.ProfileDisplayActivity
import com.sdp13epfl2021.projmag.curriculumvitae.CurriculumVitae
import com.sdp13epfl2021.projmag.database.interfaces.CandidatureDatabase
import com.sdp13epfl2021.projmag.database.interfaces.ProjectId
import com.sdp13epfl2021.projmag.model.Candidature
import com.sdp13epfl2021.projmag.model.ImmutableProfile

/**
 * Adapter for the list of candidatures. Adapts candidatures to recyclerview.
 */
class CandidatureAdapter(
    activity: Activity,
    private val candidatureDatabase: CandidatureDatabase,
    private val projectId: ProjectId
) :
    RecyclerView.Adapter<CandidatureAdapter.CandidatureHolder>() {

    private val candidatures: MutableList<Candidature> = ArrayList()
    private val resources: Resources = activity.resources

    init {
        candidatureDatabase.getListOfCandidatures(
            projectId,
            {
                activity.runOnUiThread {
                    candidatures.addAll(it)
                    notifyDataSetChanged()
                }
            },
            { showToast(resources.getString(R.string.db_error_msg, it)) }
        )
    }


    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CandidatureHolder {
        val adapterLayout = LayoutInflater.from(parent.context)
            .inflate(R.layout.waiting_candidature, parent, false)
        return CandidatureHolder(adapterLayout)
    }

    override fun onBindViewHolder(holder: CandidatureHolder, position: Int) {
        val candidature = candidatures[position]
        holder.firstnameView.text =
            resources.getString(R.string.waiting_firstname, candidature.profile.firstName)
        holder.lastnameView.text =
            resources.getString(R.string.waiting_lastname, candidature.profile.lastName)
        holder.sectionView.text = resources.getString(
            R.string.waiting_section,
            "IC"
        ) // TODO change when added : candidature.profile.section
        setColor(holder, candidature.state)

        val context = holder.view.context
        holder.profileButton.setOnClickListener { openProfile(context, candidature.profile) }
        holder.cvButton.setOnClickListener { openCV(context, candidature.cv) }
        holder.acceptButton.setOnClickListener(
            createListener(
                holder,
                candidature,
                Candidature.State.Accepted,
                resources.getString(R.string.waiting_accepted_msg)
            )
        )
        holder.rejectButton.setOnClickListener(
            createListener(
                holder,
                candidature,
                Candidature.State.Rejected,
                resources.getString(R.string.waiting_rejected_msg)
            )
        )
    }

    private fun createListener(
        holder: CandidatureHolder,
        candidature: Candidature,
        state: Candidature.State,
        successMsg: String
    ): (View) -> Unit {
        return {
            candidatureDatabase.pushCandidature(
                projectId,
                candidature.userId,
                state,
                {
                    showToast(successMsg)
                    setColor(holder, state)
                },
                { showToast(resources.getString(R.string.waiting_error_msg, it)) }
            )
        }
    }

    private fun setColor(holder: CandidatureHolder, state: Candidature.State) {
        if (holder.itemView is CardView) {
            holder.itemView.setCardBackgroundColor(
                when (state) {
                    Candidature.State.Waiting -> Color.WHITE
                    Candidature.State.Accepted -> Color.GREEN
                    Candidature.State.Rejected -> Color.RED
                }
            )
        }
    }

    override fun getItemCount(): Int {
        return candidatures.size
    }

    private fun openProfile(context: Context, profile: ImmutableProfile) {
        val intent = Intent(context, ProfileDisplayActivity::class.java)
        intent.putExtra(MainActivity.profile, profile as Parcelable)
        context.startActivity(intent)
    }

    private fun openCV(context: Context, cv: CurriculumVitae) {
        val intent = Intent(context, CVDisplayActivity::class.java)
        intent.putExtra(MainActivity.cv, cv as Parcelable)
        context.startActivity(intent)
    }

    private val showToast: (String) -> Unit = { msg: String ->
        activity.runOnUiThread {
            Toast.makeText(
                activity,
                msg,
                Toast.LENGTH_SHORT
            ).show()
        }
    }

    /**
     * Class containing fields to show in recycler view display of candidatures
     */
    class CandidatureHolder(val view: View) : RecyclerView.ViewHolder(view) {
        val firstnameView: TextView = view.findViewById(R.id.waiting_firstname)
        val lastnameView: TextView = view.findViewById(R.id.waiting_lastname)
        val sectionView: TextView = view.findViewById(R.id.waiting_section)
        val profileButton: Button = view.findViewById(R.id.waiting_profile)
        val cvButton: Button = view.findViewById(R.id.waiting_cv)
        val acceptButton: Button = view.findViewById(R.id.waiting_accept)
        val rejectButton: Button = view.findViewById(R.id.waiting_reject)
    }
}