feat: publish events for products

crud.py

@@ -197,7 +197,7 @@ async def create_product(user_id: str, data: PartialProduct) -> Product:
 
     await db.execute(
         f"""
-        INSERT INTO nostrmarket.products (user_id, id, stall_id, name, category_list, description, images, price, quantity)
+        INSERT INTO nostrmarket.products (user_id, id, stall_id, name, images, price, quantity, category_list, meta)
         VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
         """,
         (
@@ -205,11 +205,11 @@ async def create_product(user_id: str, data: PartialProduct) -> Product:
             product_id,
             data.stall_id,
             data.name,
-            json.dumps(data.categories),
-            data.description,
             data.image,
             data.price,
             data.quantity,
+            json.dumps(data.categories),
+            json.dumps(data.config.dict()),
         ),
     )
     product = await get_product(user_id, product_id)
@@ -222,18 +222,18 @@ async def update_product(user_id: str, product: Product) -> Product:
 
     await db.execute(
         f"""
-        UPDATE nostrmarket.products set name = ?, category_list = ?, description = ?, images = ?, price = ?, quantity = ?
+        UPDATE nostrmarket.products set name = ?, description = ?, images = ?, price = ?, quantity = ?, category_list = ?, meta = ?
         WHERE user_id = ? AND id = ?
         """,
         (
             product.name,
-            json.dumps(product.categories),
-            product.description,
             product.image,
             product.price,
             product.quantity,
             user_id,
             product.id,
+            json.dumps(product.categories),
+            json.dumps(product.config),
         ),
     )
     updated_product = await get_product(user_id, product.id)

migrations.py

@@ -37,17 +37,17 @@ async def m001_initial(db):
     Initial products table.
     """
     await db.execute(
-        f"""
+        """
         CREATE TABLE nostrmarket.products (
             user_id TEXT NOT NULL,
             id TEXT PRIMARY KEY,
             stall_id TEXT NOT NULL,
             name TEXT NOT NULL,
-            category_list TEXT DEFAULT '[]',
-            description TEXT,
             images TEXT DEFAULT '[]',
             price REAL NOT NULL,
-            quantity INTEGER NOT NULL
+            quantity INTEGER NOT NULL,
+            category_list TEXT DEFAULT '[]',
+            meta TEXT NOT NULL DEFAULT '{}'
         );
         """
     )

models.py

@@ -1,5 +1,6 @@
 import json
 import time
+from abc import abstractmethod
 from sqlite3 import Row
 from typing import List, Optional
 
@@ -8,6 +9,18 @@ from pydantic import BaseModel
 from .helpers import sign_message_hash
 from .nostr.event import NostrEvent
 
+######################################## NOSTR ########################################
+
+
+class Nostrable:
+    @abstractmethod
+    def to_nostr_event(self, pubkey: str) -> NostrEvent:
+        pass
+
+    @abstractmethod
+    def to_nostr_delete_event(self, pubkey: str) -> NostrEvent:
+        pass
+
 
 ######################################## MERCHANT ########################################
 class MerchantConfig(BaseModel):
@@ -90,7 +103,7 @@ class Stall(PartialStall):
         event = NostrEvent(
             pubkey=pubkey,
             created_at=round(time.time()),
-            kind=30005,
+            kind=30017,
             tags=[["d", self.id]],
             content=json.dumps(content, separators=(",", ":"), ensure_ascii=False),
         )
@@ -121,14 +134,19 @@ class Stall(PartialStall):
 ######################################## STALLS ########################################
 
 
+class ProductConfig(BaseModel):
+    event_id: Optional[str]
+    description: Optional[str]
+
+
 class PartialProduct(BaseModel):
     stall_id: str
     name: str
     categories: List[str] = []
-    description: Optional[str]
     image: Optional[str]
     price: float
     quantity: int
+    config: ProductConfig = ProductConfig()
 
     def validate_product(self):
         if self.image:
@@ -150,14 +168,14 @@ class PartialProduct(BaseModel):
                     )
 
 
-class Product(PartialProduct):
+class Product(PartialProduct, Nostrable):
     id: str
 
     def to_nostr_event(self, pubkey: str) -> NostrEvent:
         content = {
             "stall_id": self.stall_id,
             "name": self.name,
-            "description": self.description,
+            "description": self.config.description,
             "image": self.image,
             "price": self.price,
             "quantity": self.quantity,
@@ -167,7 +185,7 @@ class Product(PartialProduct):
         event = NostrEvent(
             pubkey=pubkey,
             created_at=round(time.time()),
-            kind=30005,
+            kind=30018,
             tags=[["d", self.id]] + categories,
             content=json.dumps(content, separators=(",", ":"), ensure_ascii=False),
         )
@@ -175,8 +193,21 @@ class Product(PartialProduct):
 
         return event
 
+    def to_nostr_delete_event(self, pubkey: str) -> NostrEvent:
+        delete_event = NostrEvent(
+            pubkey=pubkey,
+            created_at=round(time.time()),
+            kind=5,
+            tags=[["e", self.config.event_id]],
+            content=f"Product '{self.name}' deleted",
+        )
+        delete_event.id = delete_event.event_id
+
+        return delete_event
+
     @classmethod
     def from_row(cls, row: Row) -> "Product":
         product = cls(**dict(row))
+        product.config = ProductConfig(**json.loads(row["meta"]))
         product.categories = json.loads(row["category_list"])
         return product

static/components/stall-details/stall-details.html

@@ -161,7 +161,7 @@
                     </div>
                   </q-td>
                   <q-td key="description" :props="props">
-                    {{props.row.description}}
+                    {{props.row.config.description}}
                   </q-td>
                 </q-tr>
               </template>

static/components/stall-details/stall-details.js

@@ -190,7 +190,7 @@ async function stallDetails(path) {
         try {
           const {data} = await LNbits.api.request(
             'GET',
-            '/nostrmarket/api/v1/product/' + this.stall.id,
+            '/nostrmarket/api/v1/stall/product/' + this.stall.id,
             this.inkey
           )
           this.products = data
@@ -205,12 +205,14 @@ async function stallDetails(path) {
           stall_id: this.stall.id,
           id: this.productDialog.data.id,
           name: this.productDialog.data.name,
-          description: this.productDialog.data.description,
-          categories: this.productDialog.data.categories,
 
           image: this.productDialog.data.image,
           price: this.productDialog.data.price,
-          quantity: this.productDialog.data.quantity
+          quantity: this.productDialog.data.quantity,
+          categories: this.productDialog.data.categories,
+          config: {
+            description: this.productDialog.data.description
+          }
         }
         this.productDialog.showDialog = false
         if (this.productDialog.data.id) {

views_api.py

@@ -12,6 +12,7 @@ from lnbits.decorators import (
     require_admin_key,
     require_invoice_key,
 )
+from lnbits.extensions.nostrmarket.nostr.event import NostrEvent
 from lnbits.utils.exchange_rates import currencies
 
 from . import nostrmarket_ext
@@ -24,6 +25,7 @@ from .crud import (
     delete_stall,
     delete_zone,
     get_merchant_for_user,
+    get_product,
     get_products,
     get_stall,
     get_stalls,
@@ -35,6 +37,7 @@ from .crud import (
 )
 from .models import (
     Merchant,
+    Nostrable,
     PartialMerchant,
     PartialProduct,
     PartialStall,
@@ -266,6 +269,22 @@ async def api_get_stalls(wallet: WalletTypeInfo = Depends(get_key_type)):
         )
 
 
+@nostrmarket_ext.get("/api/v1/stall/product/{stall_id}")
+async def api_get_stall_products(
+    stall_id: str,
+    wallet: WalletTypeInfo = Depends(require_invoice_key),
+):
+    try:
+        products = await get_products(wallet.wallet.user, stall_id)
+        return products
+    except Exception as ex:
+        logger.warning(ex)
+        raise HTTPException(
+            status_code=HTTPStatus.INTERNAL_SERVER_ERROR,
+            detail="Cannot get stall products",
+        )
+
+
 @nostrmarket_ext.delete("/api/v1/stall/{stall_id}")
 async def api_delete_stall(
     stall_id: str, wallet: WalletTypeInfo = Depends(require_admin_key)
@@ -310,6 +329,11 @@ async def api_create_product(
         data.validate_product()
         product = await create_product(wallet.wallet.user, data=data)
 
+        event = await sign_and_send_to_nostr(wallet.wallet.user, product)
+
+        product.config.event_id = event.id
+        await update_product(wallet.wallet.user, product)
+
         return product
     except ValueError as ex:
         raise HTTPException(
@@ -334,6 +358,11 @@ async def api_update_product(
         product.validate_product()
         product = await update_product(wallet.wallet.user, product)
 
+        event = await sign_and_send_to_nostr(wallet.wallet.user, product)
+
+        product.config.event_id = event.id
+        await update_product(wallet.wallet.user, product)
+
         return product
     except ValueError as ex:
         raise HTTPException(
@@ -348,13 +377,13 @@ async def api_update_product(
         )
 
 
-@nostrmarket_ext.get("/api/v1/product/{stall_id}")
+@nostrmarket_ext.get("/api/v1/product/{product_id}")
 async def api_get_product(
-    stall_id: str,
+    product_id: str,
     wallet: WalletTypeInfo = Depends(require_invoice_key),
-):
+) -> Optional[Product]:
     try:
-        products = await get_products(wallet.wallet.user, stall_id)
+        products = await get_product(wallet.wallet.user, product_id)
         return products
     except Exception as ex:
         logger.warning(ex)
@@ -370,7 +399,18 @@ async def api_delete_product(
     wallet: WalletTypeInfo = Depends(require_admin_key),
 ):
     try:
+        product = await get_product(wallet.wallet.user, product_id)
+        if not product:
+            raise HTTPException(
+                status_code=HTTPStatus.NOT_FOUND,
+                detail="Product does not exist.",
+            )
+
         await delete_product(wallet.wallet.user, product_id)
+        await sign_and_send_to_nostr(wallet.wallet.user, product, True)
+
+    except HTTPException as ex:
+        raise ex
     except Exception as ex:
         logger.warning(ex)
         raise HTTPException(
@@ -385,3 +425,23 @@ async def api_delete_product(
 @nostrmarket_ext.get("/api/v1/currencies")
 async def api_list_currencies_available():
     return list(currencies.keys())
+
+
+######################################## HELPERS ########################################
+
+
+async def sign_and_send_to_nostr(
+    user_id: str, n: Nostrable, delete=False
+) -> NostrEvent:
+    merchant = await get_merchant_for_user(user_id)
+    assert merchant, "Cannot find merchant!"
+
+    event = (
+        n.to_nostr_delete_event(merchant.public_key)
+        if delete
+        else n.to_nostr_event(merchant.public_key)
+    )
+    event.sig = merchant.sign_hash(bytes.fromhex(event.id))
+    await publish_nostr_event(event)
+
+    return event