Desynth page and improved item info api. Added string substitution to utils.

backend/app/recipes_router.py

@@ -15,6 +15,7 @@ from .database import get_session
 
 # Map craft names -> table names in Postgres
 ALLOWED_CRAFTS = {
+    "desynthesis": "recipes_desynthesis",
     "woodworking": "recipes_woodworking",
     "smithing": "recipes_smithing",
     "alchemy": "recipes_alchemy",
@@ -33,6 +34,17 @@ class RecipeUsageSummary(BaseModel):
     name: str
     level: int
 
+class DesynthRecipe(BaseModel):
+    id: int
+    craft: str
+    cap: Optional[int] | None = None
+    item: str
+    crystal: str
+    ingredients: str  # raw text, quantity assumed 1 each
+    hq1: Optional[str] | None = None
+    hq2: Optional[str] | None = None
+    hq3: Optional[str] | None = None
+
 class ItemRecipeUsage(BaseModel):
     crafted: list[RecipeUsageSummary] = []
     ingredient: list[RecipeUsageSummary] = []
@@ -60,6 +72,29 @@ def _craft_table(craft: str) -> str:
     return ALLOWED_CRAFTS[craft_lower]
 
 
+@router.get("/recipes/desynthesis", response_model=List[DesynthRecipe])
+async def list_desynth_recipes(session: AsyncSession = Depends(get_session)):
+    q = text("SELECT * FROM recipes_desynthesis ORDER BY item")
+    result = await session.execute(q)
+    rows = result.fetchall()
+    out: list[DesynthRecipe] = []
+    for r in rows:
+        out.append(
+            DesynthRecipe(
+                id=r.id,
+                craft=r.craft,
+                cap=r.cap,
+                item=r.item,
+                crystal=r.crystal,
+                ingredients=r.ingredients,
+                hq1=r.hq1,
+                hq2=r.hq2,
+                hq3=r.hq3,
+            )
+        )
+    return out
+
+
 @router.get("/recipes/{craft}", response_model=List[RecipeDetail])
 async def list_recipes(
     craft: str = Path(..., description="Craft name, e.g. woodworking"),
@@ -134,10 +169,15 @@ async def item_recipe_usage(item_name: str, session: AsyncSession = Depends(get_
         )
 
         # As ingredient (simple text match in JSON/array column)
+        # Match exact ingredient name by looking for the item quoted in the JSON text.
+        # Using the surrounding double quotes prevents partial matches, e.g. "Chestnut" will not
+        # match the ingredient string "Chestnut Lumber".
+        quoted = f'"{item_name}"'
         q2 = text(
-            f"SELECT id, name, level FROM {table} WHERE ingredients::text ILIKE :pat LIMIT 50"
+            f"SELECT id, name, level FROM {table} "
+            f"WHERE ingredients::text ILIKE :pat LIMIT 50"
         )
-        res2 = await session.execute(q2, {"pat": f"%{item_name}%"})
+        res2 = await session.execute(q2, {"pat": f"%{quoted}%"})
         for r in res2.fetchall():
             if not any(c.id == r.id and c.craft == craft for c in crafted) and not any(
                 i.id == r.id and i.craft == craft for i in ingredient