feat(marketplace): add marketplace listings API and catalog items CRUD

2026-09-15 20:09:07 +00:00
parent 18306c72e0
commit 90cc736d37
4 changed files with 527 additions and 1 deletions
@@ -0,0 +1,328 @@
+"""Marketplace listings API router.
+
+docs/planning/economy.md US-3 (task f51c7d95e237).
+"""
+
+from datetime import datetime
+from typing import Annotated, Any
+
+from fastapi import APIRouter, Depends, HTTPException, Query, status
+from pydantic import BaseModel, Field
+from sqlalchemy import func, or_, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.database import get_db
+from app.dependencies import CurrentUser, OptionalUser
+from app.models.marketplace import (
+    CatalogItem,
+    ItemType,
+    ListingStatus,
+    MarketplaceListing,
+)
+from app.models.user import User
+
+router = APIRouter()
+
+DbDep = Annotated[AsyncSession, Depends(get_db)]
+
+
+# ── Schemas ──
+
+class CatalogItemCreate(BaseModel):
+    name: str = Field(..., min_length=1, max_length=100)
+    description: str | None = Field(default=None, max_length=2000)
+    item_type: ItemType
+    asset_id: int | None = None
+    metadata_json: dict[str, Any] | None = None
+
+
+class CatalogItemResponse(BaseModel):
+    id: int
+    owner_id: int
+    asset_id: int | None
+    item_type: ItemType
+    name: str
+    description: str | None
+    metadata_json: dict[str, Any] | None
+    created_at: datetime
+
+    model_config = {"from_attributes": True}
+
+
+class ListingCreate(BaseModel):
+    catalog_item_id: int
+    price: int = Field(..., gt=0, description="Price in whole Credits (must be positive)")
+
+
+class ListingUpdate(BaseModel):
+    price: int | None = Field(default=None, gt=0)
+    status: ListingStatus | None = None
+
+
+class ListingResponse(BaseModel):
+    id: int
+    catalog_item_id: int
+    seller_id: int
+    price: int
+    status: ListingStatus
+    created_at: datetime
+    updated_at: datetime
+    catalog_item: CatalogItemResponse | None = None
+    seller_username: str | None = None
+
+    model_config = {"from_attributes": True}
+
+
+class ListingListResponse(BaseModel):
+    listings: list[ListingResponse]
+    total: int
+    limit: int
+    offset: int
+
+
+# ── Catalog Items ──
+
+@router.post("/items", response_model=CatalogItemResponse, status_code=status.HTTP_201_CREATED)
+async def create_catalog_item(
+    payload: CatalogItemCreate,
+    current_user: CurrentUser,
+    db: DbDep,
+):
+    """Create a new catalog item owned by the authenticated user."""
+    item = CatalogItem(
+        owner_id=current_user.id,
+        asset_id=payload.asset_id,
+        item_type=payload.item_type,
+        name=payload.name.strip(),
+        description=payload.description.strip() if payload.description else None,
+        metadata_json=payload.metadata_json,
+    )
+    db.add(item)
+    await db.commit()
+    await db.refresh(item)
+    return item
+
+
+@router.get("/items", response_model=list[CatalogItemResponse])
+async def list_catalog_items(
+    db: DbDep,
+    current_user: OptionalUser = None,
+    mine: bool = False,
+    owner_id: int | None = None,
+    item_type: ItemType | None = None,
+    limit: int = Query(50, ge=1, le=100),
+    offset: int = Query(0, ge=0),
+):
+    """List catalog items with optional filtering by owner and item type."""
+    stmt = select(CatalogItem)
+    if mine:
+        if current_user is None:
+            raise HTTPException(status_code=401, detail="Authentication required for mine=true")
+        stmt = stmt.where(CatalogItem.owner_id == current_user.id)
+    elif owner_id is not None:
+        stmt = stmt.where(CatalogItem.owner_id == owner_id)
+
+    if item_type is not None:
+        stmt = stmt.where(CatalogItem.item_type == item_type)
+
+    stmt = stmt.order_by(CatalogItem.created_at.desc(), CatalogItem.id.desc()).offset(offset).limit(limit)
+    res = await db.execute(stmt)
+    return list(res.scalars().all())
+
+
+# ── Listings ──
+
+@router.post("/listings", response_model=ListingResponse, status_code=status.HTTP_201_CREATED)
+async def create_listing(
+    payload: ListingCreate,
+    current_user: CurrentUser,
+    db: DbDep,
+):
+    """Create a new marketplace listing for an owned catalog item."""
+    item = await db.get(CatalogItem, payload.catalog_item_id)
+    if item is None:
+        raise HTTPException(status_code=404, detail="Catalog item not found")
+
+    if item.owner_id != current_user.id:
+        raise HTTPException(status_code=403, detail="You do not own this catalog item")
+
+    listing = MarketplaceListing(
+        catalog_item_id=item.id,
+        seller_id=current_user.id,
+        price=payload.price,
+        status=ListingStatus.active,
+    )
+    db.add(listing)
+    await db.commit()
+    await db.refresh(listing)
+
+    return ListingResponse(
+        id=listing.id,
+        catalog_item_id=listing.catalog_item_id,
+        seller_id=listing.seller_id,
+        price=listing.price,
+        status=listing.status,
+        created_at=listing.created_at,
+        updated_at=listing.updated_at,
+        catalog_item=CatalogItemResponse.model_validate(item),
+        seller_username=current_user.username,
+    )
+
+
+@router.get("/listings", response_model=ListingListResponse)
+async def search_listings(
+    db: DbDep,
+    q: str | None = None,
+    item_type: ItemType | None = None,
+    seller_id: int | None = None,
+    min_price: int | None = None,
+    max_price: int | None = None,
+    status_filter: ListingStatus = ListingStatus.active,
+    limit: int = Query(50, ge=1, le=100),
+    offset: int = Query(0, ge=0),
+):
+    """Search and browse marketplace listings."""
+    stmt = (
+        select(MarketplaceListing, CatalogItem, User.username)
+        .join(CatalogItem, MarketplaceListing.catalog_item_id == CatalogItem.id)
+        .join(User, MarketplaceListing.seller_id == User.id)
+    )
+
+    if status_filter:
+        stmt = stmt.where(MarketplaceListing.status == status_filter)
+    if seller_id is not None:
+        stmt = stmt.where(MarketplaceListing.seller_id == seller_id)
+    if item_type is not None:
+        stmt = stmt.where(CatalogItem.item_type == item_type)
+    if min_price is not None:
+        stmt = stmt.where(MarketplaceListing.price >= min_price)
+    if max_price is not None:
+        stmt = stmt.where(MarketplaceListing.price <= max_price)
+    if q:
+        search_pattern = f"%{q.strip()}%"
+        stmt = stmt.where(
+            or_(
+                CatalogItem.name.ilike(search_pattern),
+                CatalogItem.description.ilike(search_pattern),
+            )
+        )
+
+    # Count
+    count_stmt = select(func.count()).select_from(stmt.subquery())
+    total = (await db.execute(count_stmt)).scalar() or 0
+
+    stmt = stmt.order_by(MarketplaceListing.created_at.desc(), MarketplaceListing.id.desc()).offset(offset).limit(limit)
+    rows = (await db.execute(stmt)).all()
+
+    listings = [
+        ListingResponse(
+            id=listing.id,
+            catalog_item_id=listing.catalog_item_id,
+            seller_id=listing.seller_id,
+            price=listing.price,
+            status=listing.status,
+            created_at=listing.created_at,
+            updated_at=listing.updated_at,
+            catalog_item=CatalogItemResponse.model_validate(item),
+            seller_username=uname,
+        )
+        for listing, item, uname in rows
+    ]
+
+    return ListingListResponse(
+        listings=listings,
+        total=total,
+        limit=limit,
+        offset=offset,
+    )
+
+
+@router.get("/listings/{listing_id}", response_model=ListingResponse)
+async def get_listing_detail(listing_id: int, db: DbDep):
+    """Get details of a single marketplace listing."""
+    stmt = (
+        select(MarketplaceListing, CatalogItem, User.username)
+        .join(CatalogItem, MarketplaceListing.catalog_item_id == CatalogItem.id)
+        .join(User, MarketplaceListing.seller_id == User.id)
+        .where(MarketplaceListing.id == listing_id)
+    )
+    res = (await db.execute(stmt)).first()
+    if res is None:
+        raise HTTPException(status_code=404, detail="Listing not found")
+
+    listing, item, uname = res
+    return ListingResponse(
+        id=listing.id,
+        catalog_item_id=listing.catalog_item_id,
+        seller_id=listing.seller_id,
+        price=listing.price,
+        status=listing.status,
+        created_at=listing.created_at,
+        updated_at=listing.updated_at,
+        catalog_item=CatalogItemResponse.model_validate(item),
+        seller_username=uname,
+    )
+
+
+@router.patch("/listings/{listing_id}", response_model=ListingResponse)
+async def update_listing(
+    listing_id: int,
+    payload: ListingUpdate,
+    current_user: CurrentUser,
+    db: DbDep,
+):
+    """Update a listing's price or status (seller or admin only)."""
+    stmt = (
+        select(MarketplaceListing, CatalogItem, User.username)
+        .join(CatalogItem, MarketplaceListing.catalog_item_id == CatalogItem.id)
+        .join(User, MarketplaceListing.seller_id == User.id)
+        .where(MarketplaceListing.id == listing_id)
+    )
+    res = (await db.execute(stmt)).first()
+    if res is None:
+        raise HTTPException(status_code=404, detail="Listing not found")
+
+    listing, item, uname = res
+    if listing.seller_id != current_user.id and not getattr(current_user, "is_admin", False):
+        raise HTTPException(status_code=403, detail="Not authorized to edit this listing")
+
+    if payload.price is not None:
+        listing.price = payload.price
+    if payload.status is not None:
+        listing.status = payload.status
+
+    listing.updated_at = datetime.now()
+    await db.commit()
+    await db.refresh(listing)
+
+    return ListingResponse(
+        id=listing.id,
+        catalog_item_id=listing.catalog_item_id,
+        seller_id=listing.seller_id,
+        price=listing.price,
+        status=listing.status,
+        created_at=listing.created_at,
+        updated_at=listing.updated_at,
+        catalog_item=CatalogItemResponse.model_validate(item),
+        seller_username=uname,
+    )
+
+
+@router.delete("/listings/{listing_id}", status_code=status.HTTP_204_NO_CONTENT)
+async def delete_or_delist_listing(
+    listing_id: int,
+    current_user: CurrentUser,
+    db: DbDep,
+):
+    """Delist or delete a listing (seller or admin only)."""
+    listing = await db.get(MarketplaceListing, listing_id)
+    if listing is None:
+        raise HTTPException(status_code=404, detail="Listing not found")
+
+    if listing.seller_id != current_user.id and not getattr(current_user, "is_admin", False):
+        raise HTTPException(status_code=403, detail="Not authorized to delete this listing")
+
+    listing.status = ListingStatus.delisted
+    listing.updated_at = datetime.now()
+    await db.commit()
+    return None