/*
 * Copyright 2020 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.compose.material.icons

import androidx.compose.material.icons.Icons.Filled
import androidx.compose.material.icons.Icons.Outlined
import androidx.compose.material.icons.Icons.Rounded
import androidx.compose.material.icons.Icons.Sharp
import androidx.compose.material.icons.Icons.TwoTone
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.PathFillType
import androidx.compose.ui.graphics.SolidColor
import androidx.compose.ui.graphics.StrokeCap
import androidx.compose.ui.graphics.StrokeJoin
import androidx.compose.ui.graphics.vector.DefaultFillType
import androidx.compose.ui.graphics.vector.ImageVector
import androidx.compose.ui.graphics.vector.PathBuilder
import androidx.compose.ui.graphics.vector.path
import androidx.compose.ui.unit.dp

/**
 * <a href="https://material.io/design/iconography/system-icons.html" class="external" target="_blank">Material Design system icons</a>
 * as seen on
 * <a href="https://fonts.google.com/icons" class="external" target="_blank">Google Fonts</a>.
 *
 * ![Iconography image](https://developer.android.com/images/reference/androidx/compose/material/icons/iconography.png)
 *
 * There are five distinct icon themes: [Filled], [Outlined], [Rounded], [TwoTone], and [Sharp].
 * Each theme contains the same icons, but with a distinct visual style. You should typically
 * choose one theme and use it across your application for consistency. For example, you may want
 * to use a property or a typealias to refer to a specific theme, so it can be accessed in a
 * semantically meaningful way from inside other composables.
 *
 * @sample androidx.compose.material.icons.samples.AppIcons
 *
 * Icons maintain the same names defined by Material, but with their snake_case name converted to
 * PascalCase. For example: add_alarm becomes AddAlarm.
 *
 * Note: Icons that start with a number, such as `360`, are prefixed with a '_', becoming '_360'.
 *
 * To draw an icon, you can use an [androidx.compose.material.Icon]. This component applies tint
 * and provides layout size matching the icon.
 *
 * @sample androidx.compose.material.icons.samples.DrawIcon
 *
 * Note that only the most commonly used icons are provided by default. You can add a dependency on
 * androidx.compose.material:material-icons-extended to access every icon, but note that due to
 * the very large size of this dependency you should make sure to use R8 / ProGuard to remove
 * unused icons from your application.
 */
object Icons {
    /**
     * [Filled icons](https://material.io/resources/icons/?style=baseline) (previously the only
     * available theme, also known as the baseline theme) are the default icon theme. You can
     * also use [Default] as an alias for these icons.
     */
    object Filled

    /**
     * [Outlined icons](https://material.io/resources/icons/?style=outline) make use of a thin
     * stroke and empty space inside for a lighter appearance.
     */
    object Outlined

    /**
     * [Rounded icons](https://material.io/resources/icons/?style=round) use a corner radius that
     * pairs well with brands that use heavier typography, curved logos, or circular elements to
     * express their style.
     */
    object Rounded

    /**
     * [Two-Tone icons](https://material.io/resources/icons/?style=twotone) display corners with
     * straight edges, for a crisp style that remains legible even at smaller scales. These
     * rectangular shapes can support brand styles that are not well-reflected by rounded shapes.
     */
    object TwoTone

    /**
     * [Sharp icons](https://material.io/resources/icons/?style=sharp) display corners with
     * straight edges, for a crisp style that remains legible even at smaller scales. These
     * rectangular shapes can support brand styles that are not well-reflected by rounded shapes.
     */
    object Sharp

    /**
     * <a href="https://material.io/design/iconography/system-icons.html" class="external" target="_blank">Material Design system icons</a>
     * as seen on
     * <a href="https://fonts.google.com/icons" class="external" target="_blank">Google Fonts</a>.
     *
     * ![Iconography image](https://developer.android.com/images/reference/androidx/compose/material/icons/iconography.png)
     *
     * Languages such as Arabic and Hebrew are read from right-to-left (RTL). For RTL languages,
     * some of the icons should be mirrored when their direction matches other UI elements in RTL
     * mode.
     * The [AutoMirrored] icons are a subset of [Icons] that will automatically mirror themselves
     * when displayed in an RTL layout.
     *
     * See also
     * <a href="https://developers.google.com/fonts/docs/material_icons#which_icons_should_be_mirrored_for_rtl" class="external" target="_blank">Icons in RTL</a>.
     *
     * There are five distinct icon themes: [AutoMirrored.Filled], [AutoMirrored.Outlined],
     * [AutoMirrored.Rounded], [AutoMirrored.TwoTone], and [AutoMirrored.Sharp].
     * Each theme contains the same icons, but with a distinct visual style. You should typically
     * choose one theme and use it across your application for consistency. For example, you may
     * want to use a property or a typealias to refer to a specific theme, so it can be accessed in
     * a semantically meaningful way from inside other composables.
     *
     * Icons maintain the same names defined by Material, but with their snake_case name converted
     * to PascalCase. For example: add_alarm becomes AddAlarm.
     *
     * Note: Icons that start with a number, such as `360`, are prefixed with a '_', becoming
     * '_360'.
     *
     * To draw an icon, you can use an [androidx.compose.material.Icon]. This component applies tint
     * and provides layout size matching the icon.
     *
     * @sample androidx.compose.material.icons.samples.AutoMirroredIcon
     *
     * Note that only the most commonly used icons are provided by default. You can add a dependency
     * on androidx.compose.material:material-icons-extended to access every icon, but note that due
     * to the very large size of this dependency you should make sure to use R8 / ProGuard to remove
     * unused icons from your application.
     */
    object AutoMirrored {
        /**
         * [Filled icons](https://material.io/resources/icons/?style=baseline)are the default icon
         * theme. You can also use [Default] as an alias for these icons.
         */
        object Filled

        /**
         * [Outlined icons](https://material.io/resources/icons/?style=outline) make use of a thin
         * stroke and empty space inside for a lighter appearance.
         */
        object Outlined

        /**
         * [Rounded icons](https://material.io/resources/icons/?style=round) use a corner radius
         * that pairs well with brands that use heavier typography, curved logos, or circular
         * elements to express their style.
         */
        object Rounded

        /**
         * [Two-Tone icons](https://material.io/resources/icons/?style=twotone) display corners with
         * straight edges, for a crisp style that remains legible even at smaller scales. These
         * rectangular shapes can support brand styles that are not well-reflected by rounded
         * shapes.
         */
        object TwoTone

        /**
         * [Sharp icons](https://material.io/resources/icons/?style=sharp) display corners with
         * straight edges, for a crisp style that remains legible even at smaller scales. These
         * rectangular shapes can support brand styles that are not well-reflected by rounded
         * shapes.
         */
        object Sharp

        /**
         * Alias for [AutoMirrored.Filled], the baseline icon theme.
         */
        val Default = Filled
    }

    /**
     * Alias for [Filled], the baseline icon theme.
     */
    val Default = Filled
}

/**
 * Utility delegate to construct a Material icon with default size information.
 * This is used by generated icons, and should not be used manually.
 *
 * @param name the full name of the generated icon
 * @param block builder lambda to add paths to this vector asset
 */
inline fun materialIcon(
    name: String,
    block: ImageVector.Builder.() -> ImageVector.Builder
): ImageVector = materialIcon(name = name, autoMirror = false, block = block)

/**
 * Utility delegate to construct a Material icon with default size information.
 * This is used by generated icons, and should not be used manually.
 *
 * @param name the full name of the generated icon
 * @param autoMirror determines if the vector asset should automatically be mirrored for right to
 * left locales
 * @param block builder lambda to add paths to this vector asset
 */
inline fun materialIcon(
    name: String,
    autoMirror: Boolean,
    block: ImageVector.Builder.() -> ImageVector.Builder
): ImageVector = ImageVector.Builder(
    name = name,
    defaultWidth = MaterialIconDimension.dp,
    defaultHeight = MaterialIconDimension.dp,
    viewportWidth = MaterialIconDimension,
    viewportHeight = MaterialIconDimension,
    autoMirror = autoMirror
).block().build()

/**
 * Adds a vector path to this icon with Material defaults.
 *
 * @param fillAlpha fill alpha for this path
 * @param strokeAlpha stroke alpha for this path
 * @param pathFillType [PathFillType] for this path
 * @param pathBuilder builder lambda to add commands to this path
 */
inline fun ImageVector.Builder.materialPath(
    fillAlpha: Float = 1f,
    strokeAlpha: Float = 1f,
    pathFillType: PathFillType = DefaultFillType,
    pathBuilder: PathBuilder.() -> Unit
) =
// TODO: b/146213225
// Some of these defaults are already set when parsing from XML, but do not currently exist
    // when added programmatically. We should unify these and simplify them where possible.
    path(
        fill = SolidColor(Color.Black),
        fillAlpha = fillAlpha,
        stroke = null,
        strokeAlpha = strokeAlpha,
        strokeLineWidth = 1f,
        strokeLineCap = StrokeCap.Butt,
        strokeLineJoin = StrokeJoin.Bevel,
        strokeLineMiter = 1f,
        pathFillType = pathFillType,
        pathBuilder = pathBuilder
    )

// All Material icons (currently) are 24dp by 24dp, with a viewport size of 24 by 24.
@PublishedApi
internal const val MaterialIconDimension = 24f