/*
 * ImageToolbox is an image editor for android
 * Copyright (c) 2026 T8RIN (Malik Mukhametzyanov)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * You should have received a copy of the Apache License
 * along with this program.  If not, see <http://www.apache.org/licenses/LICENSE-2.0>.
 */

package com.t8rin.imagetoolbox.feature.draw.presentation.components.element

import androidx.compose.animation.AnimatedContent
import androidx.compose.animation.AnimatedVisibility
import androidx.compose.animation.expandVertically
import androidx.compose.animation.fadeIn
import androidx.compose.animation.fadeOut
import androidx.compose.animation.shrinkVertically
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.width
import androidx.compose.material3.Icon
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.derivedStateOf
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.unit.dp
import com.t8rin.imagetoolbox.core.filters.presentation.model.toUiFilter
import com.t8rin.imagetoolbox.core.filters.presentation.widget.AddFilterButton
import com.t8rin.imagetoolbox.core.filters.presentation.widget.FilterItem
import com.t8rin.imagetoolbox.core.filters.presentation.widget.FilterTemplateCreationSheetComponent
import com.t8rin.imagetoolbox.core.filters.presentation.widget.addFilters.AddFiltersSheet
import com.t8rin.imagetoolbox.core.filters.presentation.widget.addFilters.AddFiltersSheetComponent
import com.t8rin.imagetoolbox.core.resources.Icons
import com.t8rin.imagetoolbox.core.resources.R
import com.t8rin.imagetoolbox.core.resources.icons.AutoFixHigh
import com.t8rin.imagetoolbox.core.ui.theme.mixedContainer
import com.t8rin.imagetoolbox.core.ui.widget.enhanced.EnhancedButton
import com.t8rin.imagetoolbox.core.ui.widget.modifier.ShapeDefaults
import com.t8rin.imagetoolbox.core.ui.widget.other.InfoContainer
import com.t8rin.imagetoolbox.feature.draw.domain.DrawMode

@Composable
internal fun CustomPathEffectParamsSelector(
    value: DrawMode,
    onValueChange: (DrawMode) -> Unit,
    addFiltersSheetComponent: AddFiltersSheetComponent,
    filterTemplateCreationSheetComponent: FilterTemplateCreationSheetComponent
) {
    AnimatedVisibility(
        visible = value is DrawMode.PathEffect.Custom,
        enter = fadeIn() + expandVertically(),
        exit = fadeOut() + shrinkVertically()
    ) {
        val filter by remember(value) {
            derivedStateOf {
                (value as? DrawMode.PathEffect.Custom)?.filter?.toUiFilter()
            }
        }
        var showFilterSelection by rememberSaveable {
            mutableStateOf(false)
        }
        AnimatedContent(
            targetState = filter,
            contentKey = { it != null }
        ) { filter ->
            Column(
                horizontalAlignment = Alignment.CenterHorizontally,
                modifier = Modifier.padding(horizontal = 8.dp)
            ) {
                if (filter != null) {
                    FilterItem(
                        filter = filter,
                        showDragHandle = false,
                        onRemove = {
                            onValueChange(
                                DrawMode.PathEffect.Custom()
                            )
                        },
                        onFilterChange = { value ->
                            onValueChange(
                                DrawMode.PathEffect.Custom(filter.copy(value))
                            )
                        },
                        backgroundColor = MaterialTheme.colorScheme.surface,
                        shape = ShapeDefaults.default,
                        canHide = false,
                        onCreateTemplate = null
                    )
                    Spacer(modifier = Modifier.height(8.dp))
                    EnhancedButton(
                        containerColor = MaterialTheme.colorScheme.mixedContainer,
                        onClick = {
                            showFilterSelection = true
                        }
                    ) {
                        Icon(
                            imageVector = Icons.Rounded.AutoFixHigh,
                            contentDescription = stringResource(R.string.replace_filter)
                        )
                        Spacer(Modifier.width(8.dp))
                        Text(stringResource(id = R.string.replace_filter))
                    }
                    Spacer(modifier = Modifier.height(8.dp))
                } else {
                    InfoContainer(
                        containerColor = MaterialTheme.colorScheme.surfaceContainerLow,
                        text = stringResource(R.string.pick_filter_info)
                    )
                    Spacer(modifier = Modifier.height(8.dp))
                    AddFilterButton(
                        onClick = {
                            showFilterSelection = true
                        }
                    )
                    Spacer(modifier = Modifier.height(8.dp))
                }
            }
            AddFiltersSheet(
                component = addFiltersSheetComponent,
                filterTemplateCreationSheetComponent = filterTemplateCreationSheetComponent,
                visible = showFilterSelection,
                onVisibleChange = {
                    showFilterSelection = it
                },
                canAddTemplates = false,
                previewBitmap = null,
                onFilterPicked = {
                    onValueChange(
                        DrawMode.PathEffect.Custom(it.newInstance())
                    )
                },
                onFilterPickedWithParams = {
                    onValueChange(
                        DrawMode.PathEffect.Custom(it)
                    )
                }
            )
        }
    }
}