suman9259
3 weeks ago
parent
e360f529ed
commit
22b2f8ed57
@ -0,0 +1,99 @@
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/*
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* Copyright 2025 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.samples.apps.nowinandroid.feature.settings.impl
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import android.content.Context
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import androidx.lifecycle.ViewModel
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import androidx.lifecycle.viewModelScope
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import dagger.hilt.android.lifecycle.HiltViewModel
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import dagger.hilt.android.qualifiers.ApplicationContext
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.flow.SharingStarted.Companion.WhileSubscribed
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import kotlinx.coroutines.flow.StateFlow
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import kotlinx.coroutines.flow.flow
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import kotlinx.coroutines.flow.flowOn
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import kotlinx.coroutines.flow.stateIn
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import org.json.JSONArray
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import javax.inject.Inject
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import kotlin.time.Duration.Companion.seconds
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@HiltViewModel
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class LicensesViewModel @Inject constructor(
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@ApplicationContext private val context: Context,
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) : ViewModel() {
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val licensesUiState: StateFlow<LicensesUiState> = flow {
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emit(LicensesUiState.Success(parseLicensesJson(context)))
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}
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.flowOn(Dispatchers.IO)
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.stateIn(
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scope = viewModelScope,
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started = WhileSubscribed(5.seconds.inWholeMilliseconds),
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initialValue = LicensesUiState.Loading,
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)
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private fun parseLicensesJson(context: Context): List<LicenseArtifact> {
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return try {
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val json = context.assets.open("licenses.json").bufferedReader().use { it.readText() }
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val array = JSONArray(json)
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(0 until array.length()).map { i ->
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val obj = array.getJSONObject(i)
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val spdxLicenses = obj.optJSONArray("spdxLicenses")
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val unknownLicenses = obj.optJSONArray("unknownLicenses")
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val licenses = mutableListOf<LicenseInfo>()
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if (spdxLicenses != null) {
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for (j in 0 until spdxLicenses.length()) {
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val license = spdxLicenses.getJSONObject(j)
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licenses.add(
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LicenseInfo(
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name = license.optString("name", ""),
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url = license.optString("url", ""),
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),
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)
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}
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}
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if (unknownLicenses != null) {
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for (j in 0 until unknownLicenses.length()) {
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val license = unknownLicenses.getJSONObject(j)
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licenses.add(
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LicenseInfo(
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name = license.optString("name", "Unknown"),
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url = license.optString("url", ""),
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),
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)
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}
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}
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LicenseArtifact(
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groupId = obj.optString("groupId", ""),
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artifactId = obj.optString("artifactId", ""),
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version = obj.optString("version", ""),
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name = if (obj.has("name")) obj.getString("name") else null,
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licenses = licenses,
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)
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}.sortedBy { (it.name ?: "${it.groupId}:${it.artifactId}").lowercase() }
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} catch (e: Exception) {
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emptyList()
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}
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}
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}
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sealed interface LicensesUiState {
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data object Loading : LicensesUiState
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data class Success(val artifacts: List<LicenseArtifact>) : LicensesUiState
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}
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