diff --git a/app/src/main/java/com/ericampire/android/androidstudycase/Product.kt b/app/src/main/java/com/ericampire/android/androidstudycase/Product.kt
new file mode 100644
index 0000000..2a25ddb
--- /dev/null
+++ b/app/src/main/java/com/ericampire/android/androidstudycase/Product.kt
@@ -0,0 +1,166 @@
+package com.ericampire.android.androidstudycase
+
+import androidx.compose.ui.text.font.FontWeight
+import java.util.*
+
+/**
+ * - Pending : Commande faite mais en attente de validation
+ * - Cancelled : Order cancelled by the user
+ * - Declined : Order cancelled by the store
+ * - Validated : Order validated by the store
+ * - Delivered : Order delivered
+ * - In Shipping : Order in shipping
+ */
+
+data class Order(
+    val uid: String = "",
+    val products: List<ProductCart>,
+    val fees: Double,
+    val refund: Any? = null
+)
+
+/**
+ * Une copy de [Product] plus quantity et shipping in express or not
+ */
+data class ProductCart(
+    val product: Product, // Le product modifier avec un one meta data value
+    val quantity: Long,
+    val expressShipping: Boolean = false,
+    val refund: Any? = null
+)
+
+
+data class ProductTag(
+    val uid: String, // Unique
+    val title: String,
+    val createdAt: Date,
+    val updatedAt: Date,
+    val description: String,
+)
+
+
+data class Product(
+    val uid: String = "",
+    val createdAt: Date? = null,
+    val price: Double = 0.0,
+    val name: String = "",
+
+    // A ajouter
+    val tags: List<String>, // list of uid tag
+    val uidStore: String,
+    val uidGroup: String,
+    val shippingDetail: ProductShippingPrice,
+    val metaDatas: List<MetaData> = emptyList(),
+    val productSpecs: Map<String, String> = mapOf(),
+    val productDimension: ProductDimension
+)
+
+class ProductShippingPrice(
+    val freeShipping: Boolean = false,
+    val defaultShippingPrice: Double = 0.0,
+    val expressShippingPrice: Double = 0.0,
+    val expressShippingDetail: String = "",
+)
+
+data class ProductDimension(
+    val weight: Double = 0.0,
+    val length: Double = 0.0,
+    val width: Double = 0.0,
+    val height: Double = 0.0,
+    val fragileBox: Boolean = false,
+)
+
+data class MetaData(
+    val uid: String = "",
+    val name: String = "",
+    val description: String = "",
+    val type: MetaDataValueType = MetaDataValueType.TEXT,
+    val metaDataValues: List<MetaDataValue> = emptyList(),
+)
+
+enum class MetaDataValueType {
+    TEXT, COLOR, IMAGE_URL
+}
+
+data class MetaDataValue(
+    val uid: String = "",
+    val value: String = "",
+    val extraPrice: Double = 0.0,
+    val available: Boolean = false,
+)
+
+fun main() {
+    val capacityMetaData = MetaData(
+        uid = "sdfdf",
+        name = "Capacity",
+        description = "The storage of the phone",
+        type = MetaDataValueType.TEXT,
+        metaDataValues = listOf(
+            MetaDataValue(
+                uid = "12142",
+                value = "16GB",
+                extraPrice = 0.0,
+                available = false,
+            ),
+            MetaDataValue(
+                uid = "1214sdf2",
+                value = "32GB",
+                extraPrice = 23.5,
+                available = true,
+            ),
+        )
+    )
+    val colorMetaData = MetaData(
+        uid = "sdfdf",
+        name = "Color",
+        description = "The color of the phone",
+        type = MetaDataValueType.COLOR,
+        metaDataValues = listOf(
+            MetaDataValue(
+                uid = "12142",
+                value = "#FF2335",
+                extraPrice = 0.0,
+                available = false
+            ),
+            MetaDataValue(
+                uid = "1214sdf2",
+                value = "#FF2335",
+                extraPrice = 0.0,
+                available = true
+            ),
+            MetaDataValue(
+                uid = "1214sdf2",
+                value = "#FF2335",
+                extraPrice = 0.0,
+                available = true
+            ),
+        )
+    )
+
+    val product = Product(
+        uid = "dsfdf",
+        name = "Iphone 13",
+        price = 120.0,
+        productSpecs = mapOf(
+            "Model" to "12K23",
+            "Mark" to "Apple",
+            "Year" to "2021",
+            "Material" to "Plastic",
+            "Recycler" to "Oui"
+        ),
+        metaDatas = listOf(capacityMetaData, colorMetaData),
+        productDimension = ProductDimension(
+            height = 12.0,
+            length = 12.9,
+            fragileBox = true,
+            weight = 12.0,
+            width = 12.0
+        ),
+        shippingDetail = ProductShippingDetail(
+            freeShipping = false,
+            defaultShippingPrice = 12.0,
+            expressShippingPrice = 10.0,
+            expressShippingDetail = "Ajouter 10$ pour etre livre en 2 jours",
+        )
+    )
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/ericampire/android/androidstudycase/presentation/screen/explore/ui/ExploreScreen.kt b/app/src/main/java/com/ericampire/android/androidstudycase/presentation/screen/explore/ui/ExploreScreen.kt
index 9da3219..d428d8d 100644
--- a/app/src/main/java/com/ericampire/android/androidstudycase/presentation/screen/explore/ui/ExploreScreen.kt
+++ b/app/src/main/java/com/ericampire/android/androidstudycase/presentation/screen/explore/ui/ExploreScreen.kt
@@ -16,6 +16,7 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringArrayResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.navigation.NavController
 import com.airbnb.mvrx.Fail
@@ -252,4 +253,12 @@ private fun ExploreContent(
       }
     }
   )
+}
+
+@Preview
+@Composable
+fun TestPreview() {
+  Column {
+    Text("Hello");Text("Hello");Text("Hello");
+  }
 }
\ No newline at end of file
diff --git a/data.json b/data.json
new file mode 100644
index 0000000..3f2fd24
--- /dev/null
+++ b/data.json
@@ -0,0 +1,7 @@
+{
+  "uid" : "sdfsdf",
+  "meta-data" : [],
+  "specifications" : [
+
+  ]
+}
\ No newline at end of file