chore: absorbe nakui (ERP matemático) en modules/nakui

- crates/modules/nakui/core/: el crate nakui-core (4 bins, tests). Deps directas (serde, rhai, surrealdb, petgraph, sha2, uuid, tokio, thiserror v1) — no convertidas a workspace = true en esta pasada. - crates/modules/nakui/modules/{inventory,sales,treasury}/: datos declarativos del dominio (nsmc.json, schema.k, morphisms/) que el crate consume — no son crates. cargo check -p nakui-core: 0 errores. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-08 05:49:58 +00:00
parent 53dbdf0f1d
commit 4d50bfc587
49 changed files with 11953 additions and 40 deletions
@@ -0,0 +1,52 @@
+// vender
+// Cross-module morphism: decreases Stock (inventory) and increases Caja
+// (treasury). NOT conservation-bound — a sale is asymmetric: units leave
+// the system, money enters. The kernel validates each entity against its
+// own schema (Stock from inventory, Caja from treasury, Venta from sales).
+//
+// states.stock: the Stock record (inventory module).
+// states.caja:  the Caja record (treasury module).
+// params: { cantidad:i64, precio_unitario:i64 (en centavos),
+//           timestamp:str, venta_id:str }
+
+let cantidad = input.params.cantidad;
+let precio   = input.params.precio_unitario;
+let venta_id = input.params.venta_id;
+
+if cantidad <= 0 { throw "cantidad debe ser positiva" }
+if precio   <= 0 { throw "precio_unitario debe ser positivo" }
+if type_of(venta_id) == "()" { throw "params.venta_id es obligatorio (idempotencia)" }
+
+let stock = input.states.stock;
+let caja  = input.states.caja;
+
+let total = cantidad * precio;
+
+[
+    #{
+        op: "set",
+        path: #{ entity: "Stock", id: input.ids.stock, field: "cantidad" },
+        value: stock.cantidad - cantidad,
+    },
+    #{
+        op: "set",
+        path: #{ entity: "Caja", id: input.ids.caja, field: "saldo" },
+        value: caja.saldo + total,
+    },
+    #{
+        op: "create",
+        entity: "Venta",
+        id: venta_id,
+        data: #{
+            id:              venta_id,
+            stock_id:        input.ids.stock,
+            caja_id:         input.ids.caja,
+            sku_id:          stock.sku_id,
+            cantidad:        cantidad,
+            precio_unitario: precio,
+            currency:        caja.currency,
+            total:           total,
+            timestamp:       input.params.timestamp,
+        },
+    },
+]
@@ -0,0 +1,21 @@
+{
+  "module": "sales",
+  "schemas": [
+    "schema.k",
+    "../treasury/schema.k",
+    "../inventory/schema.k"
+  ],
+  "morphisms": [
+    {
+      "name": "vender",
+      "inputs": [
+        { "role": "stock", "entity": "Stock" },
+        { "role": "caja",  "entity": "Caja"  }
+      ],
+      "reads":  ["stock.cantidad", "stock.sku_id", "caja.saldo", "caja.currency"],
+      "writes": ["stock.cantidad", "caja.saldo", "Venta"],
+      "depends_on": [],
+      "script": "morphisms/vender.rhai"
+    }
+  ]
+}
@@ -0,0 +1,16 @@
+schema Venta:
+    id: str
+    stock_id: str
+    caja_id: str
+    sku_id: str
+    cantidad: int
+    precio_unitario: int
+    currency: str
+    total: int
+    timestamp: str
+
+    check:
+        cantidad > 0, "cantidad positiva"
+        precio_unitario > 0, "precio_unitario positivo"
+        len(currency) == 3, "currency ISO 4217"
+        total == cantidad * precio_unitario, "total debe ser cantidad * precio_unitario"