csamsclient/background/src/main/java/com/gyf/csams/main/ui/RenameActivity.kt

package com.gyf.csams.main.ui

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.annotation.StringRes
import androidx.compose.foundation.border
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.lazy.LazyColumn
import androidx.compose.foundation.lazy.rememberLazyListState
import androidx.compose.material.MaterialTheme
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.graphics.Color
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.unit.dp
import androidx.lifecycle.viewmodel.compose.viewModel
import com.gyf.csams.R
import com.gyf.csams.main.model.RenameViewModel
import com.gyf.csams.main.model.RenameVo
import com.gyf.lib.uikit.BaseTextField
import com.gyf.lib.uikit.BodyS
import com.gyf.lib.uikit.MainColumnFrame
import com.gyf.lib.uikit.ScaffoldModel
import com.gyf.lib.util.BottomButton

class RenameActivity : ComponentActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        setContent {
            BodyS {
                MainColumnFrame(background = { /*TODO*/ }) {
                    val listState = rememberLazyListState()
                    val model: RenameViewModel = viewModel()
                    val data by model.data.observeAsState()
                    Row(
                        horizontalArrangement = Arrangement.Center,
                        modifier = Modifier
                            .fillMaxWidth()
                            .padding(10.dp)
                    ) {
                        Text(
                            text = stringResource(id = R.string.rename_form),
                            style = MaterialTheme.typography.h4
                        )
                    }
                    LazyColumn(state = listState) {
                        data?.forEach {
                            item {
                                RenameForm(renameVo = it)
                                Spacer(modifier = Modifier.height(10.dp))
                            }
                        }

                    }
                }
            }
        }
    }

    @Composable
    private fun RenameForm(modifier: Modifier = Modifier, renameVo: RenameVo) {
        val model: RenameViewModel = viewModel()
        val scaffoldModel: ScaffoldModel = viewModel()
        Column(modifier = modifier) {
            val baseHeight = 50.dp
            RowItem(
                modifier = Modifier.height(baseHeight),
                key = R.string.petitioner,
                value = renameVo.studentId
            )
            RowItem(
                modifier = Modifier.height(baseHeight),
                key = R.string.oldname,
                value = renameVo.oldName
            )
            RowItem(
                modifier = Modifier.height(baseHeight),
                key = R.string.newname,
                value = renameVo.newName
            )
            RowItem(
                modifier = Modifier.height(baseHeight),
                key = R.string.reason_for_application,
                value = renameVo.reason
            )
            RowItem(
                modifier = Modifier.height(baseHeight), key = R.string.approver, value = ""
                /**TODO 获取审批人**/
            )
            RowItem(modifier = Modifier.height(baseHeight * 3), key = R.string.approver_origin) {
                BaseTextField(modifier = Modifier.fillMaxSize(), form = model.approverOrigin)
            }
            val message = stringResource(id = R.string.not_impl_error)
            BottomButton(modifier = Modifier.fillMaxWidth()) {
                scaffoldModel.update(message = message)
            }
        }
    }

    @Composable
    private fun RowItem(
        modifier: Modifier = Modifier,
        @StringRes key: Int,
        value: String? = null,
        content: (@Composable () -> Unit)? = null
    ) {
        Row(
            modifier = modifier
                .fillMaxWidth()
                .border(width = 1.dp, color = Color.Black)
        ) {
            Cell(
                modifier = Modifier.weight(0.5F),
                value = stringResource(id = key)
            )
            Cell(modifier = Modifier.weight(0.5F), value = value, content = content)
        }
    }

    @Composable
    private fun Cell(
        modifier: Modifier = Modifier,
        value: String? = null,
        content: (@Composable () -> Unit)? = null
    ) {
        Box(
            modifier = modifier
                .fillMaxSize()
                .border(width = 1.dp, color = MaterialTheme.colors.onBackground),
            contentAlignment = Alignment.Center
        ) {
            if (content != null) content() else Text(
                text = value ?: throw IllegalArgumentException(
                    "参数错误"
                )
            )
        }
    }
}