package ru.omni_devel.cards

import android.app.Activity
import android.content.Intent
import android.os.Bundle
import android.widget.Toast
import androidx.activity.ComponentActivity
import androidx.activity.compose.LocalActivity
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.layout.PaddingValues
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.material3.OutlinedTextField
import androidx.compose.material3.Scaffold
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.setValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.ui.Modifier
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.res.stringResource
import ru.omni_devel.cards.ui.theme.OmniCardsTheme

class FillTemplateActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enableEdgeToEdge()

        val templateJson = intent.getStringExtra("templateJson") ?: ""
        val template = Template.parseTemplateFromJson(templateJson)

        setContent {
            OmniCardsTheme {
                Scaffold(modifier = Modifier.fillMaxSize()) { innerPadding ->
                    FillTemplatePage(template, innerPadding)
                }
            }
        }
    }
}

@Composable
fun FillTemplatePage(template: Template, innerPadding: PaddingValues) {
    val activityContext = LocalActivity.current
    val context = LocalContext.current

    val language = getLanguage(context)

    var filledFields by rememberSaveable { mutableStateOf(template.fields.associate { field ->
        field.id to (field.default ?: "")
    }) }

    Page(
        selectItemNameViaLanguage(template.names, language),
        innerPadding
    ) {
        for (field in template.fields) {
            OutlinedTextField(
                value = filledFields[field.id]!!,
                onValueChange = { newValue ->
                    filledFields = filledFields.toMutableMap().apply {
                        this[field.id] = newValue
                    }
                },
                modifier = Modifier.fillMaxWidth(),
                label = { Text((if (field.maybeEmpty) "" else "*") + selectItemNameViaLanguage(field.names, language)) }
            )
        }

        AdaptiveButton(
            modifier = Modifier.fillMaxWidth(),
            onClick = {
                var isSuccess = true

                for (field in template.fields) {
                    if (filledFields[field.id]!!.isEmpty() && !field.maybeEmpty) {
                        isSuccess = false
                    }
                }

                if (!isSuccess) {
                    Toast.makeText(context, context.getString(R.string.error_in_data), Toast.LENGTH_LONG).show()

                    return@AdaptiveButton
                }

                var result = template.template

                for ((id, value) in filledFields) {
                    result = result.replace("$$id$", value)
                }

                val resultIntent = Intent()

                resultIntent.putExtra("codeValue", result)

                activityContext!!.setResult(Activity.RESULT_OK, resultIntent)
                activityContext.finish()
            }
        ) {
            Text(stringResource(R.string.do_save))
        }
    }
}