package com.suno.android.common_ui.components.bottom_sheet

import android.content.Context
import android.content.Intent
import android.net.Uri
import android.widget.Toast
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.PaddingValues
import androidx.compose.foundation.layout.WindowInsets
import androidx.compose.foundation.layout.defaultMinSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.heightIn
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.statusBars
import androidx.compose.foundation.lazy.grid.GridCells
import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
import androidx.compose.foundation.lazy.grid.items
import androidx.compose.material3.ModalBottomSheet
import androidx.compose.material3.SheetState
import androidx.compose.material3.SheetValue
import androidx.compose.material3.Text
import androidx.compose.material3.rememberModalBottomSheetState
import androidx.compose.runtime.Composable
import androidx.compose.runtime.remember
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.platform.ClipboardManager
import androidx.compose.ui.platform.LocalConfiguration
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.platform.LocalDensity
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.text.AnnotatedString
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.tooling.preview.PreviewLightDark
import androidx.compose.ui.unit.dp
import com.suno.android.common_core_utils.extensions.xCheckIsAppInstalled
import com.suno.android.common_ui.components.buttons.ShareButton
import com.suno.android.common_ui.components.omni.CircleIconButton
import com.suno.android.common_ui.theme.ExtendedTheme
import com.suno.android.common_ui.theme.SunoTheme
import kotlinx.collections.immutable.persistentListOf
import java.net.URLEncoder
import com.suno.android.common_res.R as CommonResR

sealed interface SharePlatformConstants {
    sealed class Link(
        val backendValue: String,
    ) : SharePlatformConstants {
        data object Copy : Link("copy-link")
        data object X : Link("x")
        data object Instagram : Link("instagram")
        data object Email : Link("email")
        data object Facebook : Link("facebook")
        data object WhatsApp : Link("whatsapp")
        data object Messages : Link("messages")
        data object More : Link("more")
    }

    data object Video : SharePlatformConstants
}

// todo: figure out how this can be put into some vm/manager/mediator class to have a SSOT for the logic
fun handleShareClicked(
    platform: SharePlatformConstants.Link,
    shareLink: String,
    context: Context,
    clipboardManager: ClipboardManager,
) {
    when (platform) {
        SharePlatformConstants.Link.Copy -> {
            clipboardManager.setText(AnnotatedString(shareLink))
        }

        SharePlatformConstants.Link.X -> {
            val encodedUrl = URLEncoder.encode(shareLink, "UTF-8")
            val text = context.getString(CommonResR.string.share_song_subject) + " $encodedUrl"
            val twitterIntent = Intent(Intent.ACTION_VIEW).apply {
                data = Uri.parse("twitter://post?message=$text")
                setPackage("com.twitter.android")
            }

            fun webIntentFallback() {
                val webIntent = Intent(
                    Intent.ACTION_VIEW,
                    Uri.parse("https://x.com/intent/tweet?text=$text"),
                )
                context.startActivity(webIntent)
            }

            try {
                if (twitterIntent.resolveActivity(context.packageManager) != null) {
                    context.startActivity(twitterIntent)
                } else {
                    webIntentFallback()
                }
            } catch (e: Exception) {
                webIntentFallback()
            }
        }

        SharePlatformConstants.Link.Instagram -> {
            // figure this out. instagram doesnt support direct text sharing, they require media like image or video
        }

        SharePlatformConstants.Link.Email -> {
            val text = context.getString(CommonResR.string.share_song_message) + "\n\n$shareLink"
            val intent = Intent(Intent.ACTION_SENDTO).apply {
                data = Uri.parse("mailto:")
                putExtra(
                    Intent.EXTRA_SUBJECT,
                    context.getString(CommonResR.string.share_song_subject),
                )
                putExtra(Intent.EXTRA_TEXT, text)
            }
            context.startActivity(intent)
        }

        SharePlatformConstants.Link.Facebook -> {
            val facebookIntent = Intent(Intent.ACTION_SEND).apply {
                type = "text/plain"
                setPackage("com.facebook.katana")
                putExtra(Intent.EXTRA_TEXT, shareLink)
            }

            val webIntent = Intent(
                Intent.ACTION_VIEW,
                Uri.parse(
                    "https://www.facebook.com/sharer/sharer.php?u=" + URLEncoder.encode(
                        shareLink,
                        "UTF-8",
                    ),
                ),
            )

            try {
                if (facebookIntent.resolveActivity(context.packageManager) != null) {
                    context.startActivity(facebookIntent)
                } else {
                    context.startActivity(webIntent)
                }
            } catch (e: Exception) {
                context.startActivity(webIntent)
            }
        }

        SharePlatformConstants.Link.WhatsApp -> {
            try {
                val text = context.getString(CommonResR.string.share_song_subject) + "\n\n$shareLink"
                val intent = Intent(Intent.ACTION_VIEW).apply {
                    data = Uri.parse("whatsapp://send?text=$text")
                }
                context.startActivity(intent)
            } catch (e: Exception) {
                Toast.makeText(
                    context,
                    context.getString(CommonResR.string.app_not_installed),
                    Toast.LENGTH_SHORT,
                ).show()
                e.printStackTrace()
            }
        }

        SharePlatformConstants.Link.Messages -> {
            val text = context.getString(CommonResR.string.share_song_subject) + " $shareLink"
            val intent = Intent(Intent.ACTION_VIEW).apply {
                data = Uri.parse("sms:")
                putExtra("sms_body", text)
            }
            context.startActivity(intent)
        }

        SharePlatformConstants.Link.More -> {
            val sendIntent: Intent = Intent().apply {
                action = Intent.ACTION_SEND
                type = "text/plain"
                putExtra(Intent.EXTRA_TEXT, shareLink)
            }

            val shareIntent = Intent.createChooser(sendIntent, null)
            context.startActivity(shareIntent)
        }
    }
}

data class SharePlatform(
    val packageName: String? = null,
    val platformCode: SharePlatformConstants,
    val label: String,
    val contentDescription: String,
    val vectorDrawableResId: Int,
    val iconColor: Color? = null,
)

@Composable
fun ShareLinkBottomSheet(
    sheetState: SheetState = rememberModalBottomSheetState(true),
    isShowShareVideoGateEnabled: Boolean = false,
    onDismiss: () -> Unit = {},
    onShareClicked: (platform: SharePlatformConstants) -> Unit = {},
) {
    val context = LocalContext.current

    val sharePlatformList = persistentListOf(
        SharePlatform(
            label = stringResource(CommonResR.string.share_video),
            platformCode = SharePlatformConstants.Video,
            contentDescription = stringResource(CommonResR.string.share_video),
            vectorDrawableResId = com.suno.android.common_ui.R.drawable.video,
        ),
        SharePlatform(
            label = stringResource(CommonResR.string.copy_link),
            platformCode = SharePlatformConstants.Link.Copy,
            contentDescription = stringResource(CommonResR.string.copy_link),
            vectorDrawableResId = com.suno.android.common_ui.R.drawable.link,
        ),
        SharePlatform(
            label = stringResource(CommonResR.string.whatsapp),
            packageName = "com.whatsapp",
            platformCode = SharePlatformConstants.Link.WhatsApp,
            contentDescription = stringResource(CommonResR.string.whatsapp),
            vectorDrawableResId = com.suno.android.common_ui.R.drawable.whatsapp,
            iconColor = Color(0xFF25D366),
        ),
        SharePlatform(
            label = stringResource(CommonResR.string.messages),
            platformCode = SharePlatformConstants.Link.Messages,
            contentDescription = stringResource(CommonResR.string.messages),
            vectorDrawableResId = com.suno.android.common_ui.R.drawable.message,
        ),
        SharePlatform(
            label = stringResource(CommonResR.string.email),
            packageName = null,
            platformCode = SharePlatformConstants.Link.Email,
            contentDescription = stringResource(CommonResR.string.email),
            vectorDrawableResId = com.suno.android.common_ui.R.drawable.email,
        ),
        SharePlatform(
            label = stringResource(CommonResR.string.facebook),
            packageName = "com.facebook.katana",
            platformCode = SharePlatformConstants.Link.Facebook,
            contentDescription = stringResource(CommonResR.string.facebook),
            vectorDrawableResId = com.suno.android.common_ui.R.drawable.facebook,
            iconColor = Color(0xFF1877F2),
        ),
        SharePlatform(
            label = stringResource(CommonResR.string.twitter),
            packageName = "com.twitter.android",
            platformCode = SharePlatformConstants.Link.X,
            contentDescription = stringResource(CommonResR.string.twitter),
            vectorDrawableResId = com.suno.android.common_ui.R.drawable.x,
            iconColor = Color.Black,
        ),
        SharePlatform(
            label = stringResource(CommonResR.string.show_more),
            packageName = null,
            platformCode = SharePlatformConstants.Link.More,
            contentDescription = stringResource(CommonResR.string.show_more),
            vectorDrawableResId = com.suno.android.common_ui.R.drawable.ellipsis_vertical,
        ),
    )

    val filteredSharePlatforms = sharePlatformList.filter {
        if (it.platformCode is SharePlatformConstants.Video && !isShowShareVideoGateEnabled) return@filter false
        if (it.packageName == null) return@filter true
        return@filter context.xCheckIsAppInstalled(it.packageName)
    }

    ModalBottomSheet(
        onDismissRequest = onDismiss,
        sheetState = sheetState,
        dragHandle = null,
    ) {
        val statusBarHeightDp = with(LocalDensity.current) {
            WindowInsets.statusBars.getTop(LocalDensity.current).toDp()
        }
        Column(
            modifier = Modifier
                .fillMaxWidth()
                .defaultMinSize(minHeight = 128.dp)
                .heightIn(
                    max = (LocalConfiguration.current.screenHeightDp - statusBarHeightDp.value).dp,
                ),
        ) {
            Box(
                modifier = Modifier
                    .fillMaxWidth()
                    .height(64.dp),
            ) {
                Text(
                    text = stringResource(CommonResR.string.share),
                    textAlign = TextAlign.Center,
                    style = ExtendedTheme.typography.largeBody,
                    modifier = Modifier.align(Alignment.Center),
                )

                CircleIconButton(
                    modifier = Modifier
                        .align(Alignment.CenterEnd)
                        .padding(16.dp),
                    vectorDrawableResId = com.suno.android.common_ui.R.drawable.close,
                    contentDescription = "Close",
                    onClick = onDismiss,
                )
            }

            LazyVerticalGrid(
                modifier = Modifier
                    .fillMaxWidth()
                    .padding(bottom = 16.dp),
                columns = GridCells.Adaptive(minSize = 100.dp),
                contentPadding = PaddingValues(8.dp),
                horizontalArrangement = Arrangement.spacedBy(8.dp),
            ) {
                items(filteredSharePlatforms) { shareItem ->
                    ShareButton(
                        text = shareItem.label,
                        onClick = { onShareClicked(shareItem.platformCode) },
                        contentDescription = shareItem.contentDescription,
                        vectorDrawableResId = shareItem.vectorDrawableResId,
                        iconColor = shareItem.iconColor ?: Color(0xFF333333),
                    )
                }
            }
        }
    }
}

@PreviewLightDark
@Composable
private fun ShareLinkBottomSheet_Preview() {
    val density = LocalDensity.current
    SunoTheme {
        ShareLinkBottomSheet(
            sheetState = remember {
                SheetState(
                    skipPartiallyExpanded = true,
                    density = density,
                    initialValue = SheetValue.Expanded,
                )
            },
        )
    }
}