/*
 * Copyright 2019 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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.
 */

package androidx.ui.material.samples

import androidx.annotation.Sampled
import androidx.compose.Composable
import androidx.ui.core.Modifier
import androidx.compose.foundation.Box
import androidx.compose.foundation.Text
import androidx.compose.foundation.background
import androidx.compose.foundation.isSystemInDarkTheme
import androidx.compose.ui.graphics.Color
import androidx.compose.foundation.layout.aspectRatio
import androidx.compose.foundation.layout.fillMaxSize
import androidx.ui.material.ExtendedFloatingActionButton
import androidx.ui.material.MaterialTheme
import androidx.ui.material.Typography
import androidx.ui.material.darkColorPalette
import androidx.ui.material.lightColorPalette
import androidx.compose.ui.text.TextStyle
import androidx.compose.ui.text.font.FontWeight
import androidx.ui.unit.sp

@Sampled
@Composable
fun MaterialThemeSample() {
    val lightColors = lightColorPalette(
        primary = Color(0xFF1EB980)
    )

    val darkColors = darkColorPalette(
        primary = Color(0xFF66ffc7)
    )

    val colors = if (isSystemInDarkTheme()) darkColors else lightColors

    val typography = Typography(
        h1 = TextStyle(
            fontWeight = FontWeight.W100,
            fontSize = 96.sp
        ),
        button = TextStyle(
            fontWeight = FontWeight.W600,
            fontSize = 14.sp
        )
    )

    MaterialTheme(colors = colors, typography = typography) {
        val currentTheme = if (MaterialTheme.colors.isLight) "light" else "dark"
        ExtendedFloatingActionButton(
            text = { Text("FAB with text style and color from $currentTheme theme") },
            onClick = {}
        )
    }
}

@Sampled
@Composable
fun ThemeColorSample() {
    val colors = MaterialTheme.colors
    Box(Modifier.aspectRatio(1f).fillMaxSize().background(color = colors.primary))
}

@Sampled
@Composable
fun ThemeTextStyleSample() {
    val typography = MaterialTheme.typography
    Text(text = "H4 styled text", style = typography.h4)
}