refactor(router): move api models into separate crate (#103)

crates/api_models/src/customers.rs

@@ -0,0 +1,51 @@
+use common_utils::{consts, custom_serde, pii};
+use masking::Secret;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Default, Clone, Deserialize, Serialize)]
+pub struct CustomerRequest {
+    #[serde(default = "generate_customer_id")]
+    pub customer_id: String,
+    #[serde(default = "unknown_merchant", skip)]
+    pub merchant_id: String,
+    pub name: Option<String>,
+    pub email: Option<Secret<String, pii::Email>>,
+    pub phone: Option<Secret<String>>,
+    pub description: Option<String>,
+    pub phone_country_code: Option<String>,
+    pub address: Option<Secret<serde_json::Value>>,
+    pub metadata: Option<serde_json::Value>,
+}
+
+#[derive(Debug, Clone, Serialize)]
+pub struct CustomerResponse {
+    pub customer_id: String,
+    pub name: Option<String>,
+    pub email: Option<Secret<String, pii::Email>>,
+    pub phone: Option<Secret<String>>,
+    pub phone_country_code: Option<String>,
+    pub description: Option<String>,
+    pub address: Option<Secret<serde_json::Value>>,
+    #[serde(with = "custom_serde::iso8601")]
+    pub created_at: time::PrimitiveDateTime,
+    pub metadata: Option<serde_json::Value>,
+}
+
+#[derive(Default, Debug, Deserialize, Serialize)]
+pub struct CustomerId {
+    pub customer_id: String,
+}
+
+#[derive(Default, Debug, Deserialize, Serialize)]
+pub struct CustomerDeleteResponse {
+    pub customer_id: String,
+    pub deleted: bool,
+}
+
+pub fn generate_customer_id() -> String {
+    common_utils::generate_id(consts::ID_LENGTH, "cus")
+}
+
+fn unknown_merchant() -> String {
+    String::from("merchant_unknown")
+}