package com.suno.android.ui.screens.create.text

import androidx.compose.animation.AnimatedVisibility
import androidx.compose.animation.expandHorizontally
import androidx.compose.animation.fadeIn
import androidx.compose.animation.fadeOut
import androidx.compose.animation.shrinkHorizontally
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.WindowInsets
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.ime
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.layout.width
import androidx.compose.foundation.layout.windowInsetsBottomHeight
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Brush
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.unit.dp
import com.suno.android.common_ui.components.buttons.AuraButton
import com.suno.android.common_ui.components.omni.CircleIconButton
import com.suno.android.common_ui.theme.ExtendedTheme
import com.suno.android.common_res.R as CommonResR
import com.suno.android.common_ui.R as CommonUIR

@Composable
internal fun BottomBar(
    viewState: CreateTextState?,
    vm: CreateTextScreenVM?,
    modifier: Modifier = Modifier,
    onCreateClicked: (() -> Unit)? = null,
) {
    val backgroundColor = ExtendedTheme.colors.backgroundPrimary
    Column(
        modifier = modifier.padding(top = 16.dp),
    ) {
        Row(
            verticalAlignment = Alignment.CenterVertically,
            modifier = Modifier
                .fillMaxWidth()
                .background(
                    Brush.verticalGradient(
                        colors = listOf(Color(0x000E0808), backgroundColor),
                    ),
                ),
        ) {
            AnimatedVisibility(
                visible = viewState?.isFormPristine == false,
                enter = fadeIn() + expandHorizontally(),
                exit = fadeOut() + shrinkHorizontally(),
            ) {
                Row {
                    Spacer(Modifier.width(16.dp))
                    CircleIconButton(
                        modifier = Modifier.size(64.dp),
                        vectorDrawableResId = CommonUIR.drawable.trash,
                        contentDescription = stringResource(com.suno.android.common_res.R.string.clear),
                        onClick = { vm?.sendEvent(CreateTextEvent.OnAttemptToResetCreate) },
                    )
                    Spacer(Modifier.width(8.dp))
                }
            }

            AnimatedVisibility(
                visible = viewState?.isFormPristine != false,
                enter = expandHorizontally(),
                exit = shrinkHorizontally(),
            ) {
                Spacer(Modifier.width(16.dp))
            }

            AuraButton(
                text = if (viewState?.isRemix == true) {
                    stringResource(CommonResR.string.remix)
                } else {
                    stringResource(CommonResR.string.create)
                },
                onClick = {
                    vm?.sendEvent(CreateTextEvent.OnGenerateClicked)
                    onCreateClicked?.invoke()
                },
                disabled = viewState?.isCreateButtonEnabled != true,
                loading = viewState?.isCreateSubmitLoading ?: false,
                modifier = Modifier.weight(1f),
            )

            Spacer(Modifier.width(16.dp))
        }

        Column(
            modifier = Modifier
                .fillMaxWidth()
                .background(backgroundColor),
        ) {
            // for some reason adding this height as padding after background doesn't draw the background over it
            Spacer(Modifier.height(8.dp))
            Spacer(Modifier.windowInsetsBottomHeight(WindowInsets.ime))
        }
    }
}