package com.gyf.csams.association.ui

import android.Manifest
import android.app.Activity
import android.content.Intent
import android.content.pm.PackageManager
import android.net.Uri
import android.os.Bundle
import android.provider.MediaStore
import androidx.activity.ComponentActivity
import androidx.activity.compose.rememberLauncherForActivityResult
import androidx.activity.compose.setContent
import androidx.activity.result.contract.ActivityResultContracts
import androidx.compose.foundation.Image
import androidx.compose.foundation.border
import androidx.compose.foundation.layout.*
import androidx.compose.material.IconButton
import androidx.compose.material.MaterialTheme
import androidx.compose.material.OutlinedButton
import androidx.compose.material.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.livedata.observeAsState
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.res.painterResource
import androidx.compose.ui.text.buildAnnotatedString
import androidx.compose.ui.text.withStyle
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.core.content.ContextCompat
import androidx.lifecycle.viewmodel.compose.viewModel
import com.google.accompanist.coil.rememberCoilPainter
import com.gyf.csams.R
import com.gyf.csams.association.model.RegAssociationViewModel
import com.gyf.csams.uikit.Background
import com.gyf.csams.uikit.BackgroundImage
import com.gyf.lib.uikit.*
import com.gyf.lib.util.BottomButton
import com.gyf.lib.util.CheckStatus
import com.gyf.lib.util.format
import com.orhanobut.logger.Logger
import java.util.*


/**
 * 注册社团
 *
 */
class RegAssociationActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            Body {
                MainColumnFrame(background = {
                    Background(
                        BackgroundImage.RegAssociation,
                        alpha = 0.5F
                    )
                }) {
                    Spacer(
                        modifier = Modifier
                            .weight(0.1F)
                    )
                    Title()
                    Tip()
                    Name()
                    Desc(
                        modifier = Modifier
                            .weight(0.1F)
                            .fillMaxWidth()
                    )
                    Spacer(modifier = Modifier.weight(0.05F))
                    Logo(
                        modifier = Modifier
                            .weight(0.2F)
                            .fillMaxWidth()
                    )
                    Spacer(modifier = Modifier.weight(0.05F))

                    val model: RegAssociationViewModel = viewModel()
                    val scaffoldModel: ScaffoldModel = viewModel()
                    val name by model.name.statusForm.observeAsState()
                    val desc by model.name.statusForm.observeAsState()
                    val fileId by model.fileId.observeAsState()
                    val checkInfo by model.checkInfo.observeAsState()
                    BottomButton(
                        modifier = Modifier.fillMaxWidth(),
                        enabled = name == FormStatus.Valid && desc == FormStatus.Valid && fileId != null,
                        confirmDesc = if (checkInfo != null) R.string.reg_again_btn else R.string.reg_btn,

                        ) {
                        model.register {
                            scaffoldModel.update(message = it, actionLabel = "返回") {
                                finish()
                            }
                        }
                    }
                    Spacer(modifier = Modifier.weight(0.05F))
                }
            }

        }
    }

    @Composable
    private fun Tip(model: RegAssociationViewModel = viewModel()) {
        val checkInfo by model.checkInfo.observeAsState()
        checkInfo?.let {
            Row(modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.Center) {
                when (val status = it.checkStatus) {
                    CheckStatus.Finish -> Text(buildAnnotatedString {
                        withStyle(style = MaterialTheme.typography.h5.toParagraphStyle()) {
                            append("您于${Date(it.applyTime).format()}提交的${model.frameDesc}审核不通过原因如下：\n")
                        }
                        withStyle(
                            style = MaterialTheme.typography.h6.copy(color = MaterialTheme.colors.error)
                                .toParagraphStyle()
                        ) {
                            append("初审意见：${it.firstCause}\n")
                            it.lastCause?.let {
                                append("复审意见：${it}")
                            }
                        }
                    })
                    else -> {
                        Text(
                            text = status.desc, style =
                            MaterialTheme.typography.h5.copy(color = MaterialTheme.colors.primary)
                        )
                    }
                }
            }


        }

    }

    @Preview
    @Composable
    private fun TestPreview9() {
        Text(text = "123", color = MaterialTheme.colors.error)
    }


    /**
     * 社团Logo
     *
     * @param modifier
     */
    @Composable
    private fun Logo(
        model: RegAssociationViewModel = viewModel(),
        scaffoldModel: ScaffoldModel = viewModel(),
        modifier: Modifier
    ) {
        val photoIntent = Intent(
            Intent.ACTION_PICK,
            MediaStore.Images.Media.EXTERNAL_CONTENT_URI
        )
        val uri: Uri? by model.picture.observeAsState()

        val resultLauncher =
            rememberLauncherForActivityResult(contract = ActivityResultContracts.StartActivityForResult()) {
                when (it.resultCode) {
                    Activity.RESULT_OK -> {

                        it.data?.data?.apply {
                            Logger.i("uri=$this")
                            model.setPicture(this)
                        }
                    }
                }
            }

        val loadPicture = {
            //model.loadPicture(context)
            resultLauncher.launch(photoIntent)
        }
        val launcher = rememberLauncherForActivityResult(
            ActivityResultContracts.RequestPermission()
        ) { isGranted: Boolean ->
            if (isGranted) {
                // Permission Accepted: Do something
                loadPicture()
            } else {
                // Permission Denied: Do something
                scaffoldModel.update(message = getString(R.string.denined_photo_permission))
            }
        }




        Box(contentAlignment = Alignment.Center, modifier = modifier) {
            Row(
                verticalAlignment = Alignment.CenterVertically,
                horizontalArrangement = Arrangement.Center, modifier = Modifier
                    .fillMaxSize()
                    .border(width = 1.dp, color = MaterialTheme.colors.onBackground)
            ) {

                if (uri == null) {
                    OutlinedButton(onClick = {
                        when (PackageManager.PERMISSION_GRANTED) {
                            ContextCompat.checkSelfPermission(
                                applicationContext,
                                Manifest.permission.READ_EXTERNAL_STORAGE
                            ) -> {
                                // Some works that require permission
                                loadPicture()
                            }
                            else -> {
                                // Asking for permission
                                launcher.launch(Manifest.permission.READ_EXTERNAL_STORAGE)
                            }
                        }
                    }) {
                        Text(text = model.picturePlaceHolder)
                    }
                } else {
                    uri.let { it ->
                        if (it != null) {
                            Row {
                                val logo = rememberCoilPainter(request = uri)
                                Image(
                                    painter = logo, contentDescription = null
                                )
                                val checkInfo by model.checkInfo.observeAsState()
                                if (checkInfo == null || checkInfo?.checkStatus == CheckStatus.Finish) {
                                    Column(
                                        modifier = Modifier.fillMaxHeight(),
                                        verticalArrangement = Arrangement.SpaceEvenly
                                    ) {
                                        IconButton(onClick = {
                                            loadPicture()
                                        }) {
                                            Image(
                                                painter = painterResource(id = R.drawable.ic_exchange_rate),
                                                contentDescription = null
                                            )
                                        }
                                        IconButton(onClick = {
                                            scaffoldModel.update("确认上传此图片？", actionLabel = "确定") {
                                                Logger.i("开始上传")
                                                model.uploadPhoto {
                                                    scaffoldModel.update(
                                                        message = it,
                                                        actionLabel = "关闭提示"
                                                    )
                                                }
                                            }
                                        }) {
                                            Image(
                                                painter = painterResource(id = R.drawable.ic_upload),
                                                contentDescription = null
                                            )
                                        }
                                    }
                                }
                            }
                        } else {
                            Text(text = model.errorPicture)
                        }
                    }
                }


            }

        }


    }

    /**
     * 菜单标题
     *
     */
    @Composable
    private fun Title(model: RegAssociationViewModel = viewModel()) {
        Row(modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.Center) {
            Text(text = model.frameDesc, style = MaterialTheme.typography.h4)
        }
    }

    /**
     * 社团名称
     * @param model
     */
    @Composable
    private fun Name(model: RegAssociationViewModel = viewModel()) {
        val checkInfo by model.checkInfo.observeAsState()
        BaseTextField(
            form = model.name, singeLine = true, modifier = Modifier.fillMaxWidth(),
            readOnly = checkInfo?.checkStatus != CheckStatus.Finish
        )
    }

    /**
     * 社团简介
     * @param model
     */
    @Composable
    private fun Desc(model: RegAssociationViewModel = viewModel(), modifier: Modifier) {
        val checkInfo by model.checkInfo.observeAsState()
        BaseTextField(
            form = model.desc, modifier = modifier,
            readOnly = checkInfo?.checkStatus != CheckStatus.Finish
        )
    }

}