From b168d647da8a4e70e31c2f1f9d61a502380f8b35 Mon Sep 17 00:00:00 2001
From: despiegk <kristof@incubaid.com>
Date: Thu, 21 Aug 2025 17:18:41 +0200
Subject: [PATCH] ...

---
 lib/threefold/grid4/datamodel/model_node.v    |  3 +++
 .../grid4/datamodel/model_reservation.v       | 22 +++++++++++++++++++
 .../grid4/datamodel/model_slice_compute.v     | 22 +++++++++++++++++++
 .../grid4/datamodel/model_slice_storage.v     | 16 ++++++++++++++
 4 files changed, 63 insertions(+)
 create mode 100644 lib/threefold/grid4/datamodel/model_reservation.v
 create mode 100644 lib/threefold/grid4/datamodel/model_slice_compute.v
 create mode 100644 lib/threefold/grid4/datamodel/model_slice_storage.v

diff --git a/lib/threefold/grid4/datamodel/model_node.v b/lib/threefold/grid4/datamodel/model_node.v
index c2e1eaf5..8d2a5e18 100644
--- a/lib/threefold/grid4/datamodel/model_node.v
+++ b/lib/threefold/grid4/datamodel/model_node.v
@@ -12,6 +12,9 @@ pub mut:
 	country       string       // 2 letter code as specified in lib/data/countries/data/countryInfo.txt, use that library for validation
 	capacity      NodeCapacity // Hardware capacity details
 	provisiontime u32          // lets keep it simple and compatible
+	pubkey string 
+	signature_node string //signature done on node to validate pubkey with privkey
+	signature_farmer string //signature as done by farmers to validate their identity
 }
 
 pub struct DeviceInfo {
diff --git a/lib/threefold/grid4/datamodel/model_reservation.v b/lib/threefold/grid4/datamodel/model_reservation.v
new file mode 100644
index 00000000..85639d9c
--- /dev/null
+++ b/lib/threefold/grid4/datamodel/model_reservation.v
@@ -0,0 +1,22 @@
+module datamodel
+
+@[heap]
+pub struct Reservation {
+pub mut:
+	id            u32
+	customer_id u32 //links back to customer for this capacity
+	compute_slices []u32
+	storage_slices []u32
+	status        ReservationStatus
+	obligation    bool //if obligation then will be charged and money needs to be in escrow, otherwise its an intent
+	start_date u32 //epoch
+	end_date u32
+}
+
+pub enum ReservationStatus {
+	pending
+	confirmed
+	assigned
+	cancelled
+	done
+}
\ No newline at end of file
diff --git a/lib/threefold/grid4/datamodel/model_slice_compute.v b/lib/threefold/grid4/datamodel/model_slice_compute.v
new file mode 100644
index 00000000..b407ecec
--- /dev/null
+++ b/lib/threefold/grid4/datamodel/model_slice_compute.v
@@ -0,0 +1,22 @@
+module datamodel
+
+
+
+// typically 1GB of memory, but can be adjusted based based on size of machine
+@[heap]
+pub struct ComputeSlice {
+pub mut:
+	nodeid                   u32 // the node in the grid, there is an object describing the node
+	id                       int // the id of the slice in the node
+	mem_gb                   f64
+	storage_gb               f64
+	passmark                 int
+	vcores                   int
+	cpu_oversubscription     int
+	storage_oversubscription int
+	price_range              []f64 = [0.0, 0.0]
+	gpus                     u8  // nr of GPU's see node to know what GPU's are
+	price_cc                 f64 // price per slice (even if the grouped one)
+	pricing_policy           PricingPolicy
+	sla_policy               SLAPolicy
+}
diff --git a/lib/threefold/grid4/datamodel/model_slice_storage.v b/lib/threefold/grid4/datamodel/model_slice_storage.v
new file mode 100644
index 00000000..24a1d00e
--- /dev/null
+++ b/lib/threefold/grid4/datamodel/model_slice_storage.v
@@ -0,0 +1,16 @@
+module datamodel
+
+
+// 1GB of storage
+@[heap]
+pub struct StorageSlice {
+pub mut:
+	nodeid         u32 // the node in the grid
+	id             int // the id of the slice in the node, are tracked in the node itself
+	price_cc       f64 // price per slice (even if the grouped one)
+	pricing_policy PricingPolicy //copied from node which is part of nodegroup
+	sla_policy     SLAPolicy
+}
+
+
+