[pos] refactor configuration fetching and validation

1 files changed, 84 insertions, 0 deletions

diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/config/PosConfig.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/config/PosConfig.kt
new file mode 100644
index 0000000..2d8c040
--- /dev/null
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/config/PosConfig.kt
@@ -0,0 +1,84 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.config
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+import net.taler.common.Amount
+import net.taler.common.ContractProduct
+import net.taler.common.Product
+import net.taler.common.TalerUtils
+import java.util.UUID
+
+data class Config(
+    val configUrl: String,
+    val username: String,
+    val password: String
+) {
+    fun isValid() = !configUrl.isBlank()
+    fun hasPassword() = !password.isBlank()
+}
+
+@Serializable
+data class PosConfig(
+    @SerialName("config")
+    val merchantConfig: net.taler.merchantlib.MerchantConfig,
+    val categories: List<Category>,
+    val products: List<ConfigProduct>
+)
+
+@Serializable
+data class Category(
+    val id: Int,
+    val name: String,
+    @SerialName("name_i18n")
+    val nameI18n: Map<String, String>? = null
+) {
+    var selected: Boolean = false
+    val localizedName: String get() = TalerUtils.getLocalizedString(nameI18n, name)
+}
+
+@Serializable
+data class ConfigProduct(
+    val id: String = UUID.randomUUID().toString(),
+    @SerialName("product_id")
+    override val productId: String? = null,
+    override val description: String,
+    @SerialName("description_i18n")
+    override val descriptionI18n: Map<String, String>? = null,
+    override val price: Amount,
+    @SerialName("delivery_location")
+    override val location: String? = null,
+    override val image: String? = null,
+    val categories: List<Int>,
+    val quantity: Int = 0
+) : Product() {
+    val totalPrice by lazy { price * quantity }
+
+    fun toContractProduct() = ContractProduct(
+        productId = productId,
+        description = description,
+        descriptionI18n = descriptionI18n,
+        price = price,
+        location = location,
+        image = image,
+        quantity = quantity
+    )
+
+    override fun equals(other: Any?) = other is ConfigProduct && id == other.id
+    override fun hashCode() = id.hashCode()
+}