1 files changed, 104 insertions, 0 deletions
diff --git a/backend/app/schemas.py b/backend/app/schemas.py
new file mode 100644
index 0000000..db0076d
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+++ b/backend/app/schemas.py
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+"""Pydantic response schemas for the Prism v2 Overview API."""
+from typing import Literal
+
+from pydantic import BaseModel, Field
+
+
+class SearchResult(BaseModel):
+    symbol: str
+    name: str
+    exchange: str | None = None
+
+
+class MarketIndex(BaseModel):
+    name: str
+    price: float | None = None
+    change_pct: float | None = None
+
+
+class Quote(BaseModel):
+    price: float | None = None
+    prev_close: float | None = None
+    change: float | None = None
+    change_pct: float | None = None
+
+
+class Signal(BaseModel):
+    key: str
+    state: Literal["pos", "warn", "neg", "neu"]
+    value: str
+    description: str
+
+
+class OverviewStats(BaseModel):
+    market_cap: float | None = None
+    trailing_pe: float | None = None
+    trailing_eps: float | None = None
+    volume: float | None = None
+    average_volume: float | None = None
+    beta: float | None = None
+
+
+class Range52Week(BaseModel):
+    low: float | None = None
+    high: float | None = None
+    price: float | None = None
+
+
+class ShortInterest(BaseModel):
+    short_percent_of_float: float | None = None
+    short_ratio: float | None = None
+    shares_short: int | None = None
+    shares_short_prior_month: int | None = None
+    shares_short_delta_pct: float | None = None
+
+
+class CompanyProfile(BaseModel):
+    symbol: str
+    name: str
+    sector: str | None = None
+    industry: str | None = None
+    exchange: str | None = None
+    website: str | None = None
+    summary: str | None = None
+
+
+class OverviewMeta(BaseModel):
+    status: Literal["complete", "partial"]
+    is_partial: bool = False
+    field_availability: dict[str, bool] = Field(default_factory=dict)
+    sources: dict[str, str] = Field(default_factory=dict)
+
+
+class TickerOverview(BaseModel):
+    profile: CompanyProfile
+    quote: Quote
+    signals: list[Signal] = Field(default_factory=list)
+    stats: OverviewStats
+    range_52w: Range52Week
+    short_interest: ShortInterest
+    meta: OverviewMeta
+
+
+class HistoryPoint(BaseModel):
+    date: str
+    open: float | None = None
+    high: float | None = None
+    low: float | None = None
+    close: float | None = None
+    volume: float | None = None
+
+
+class WatchlistItem(BaseModel):
+    symbol: str
+    created_at: str
+    quote: Quote | None = None
+
+
+class WatchlistResponse(BaseModel):
+    items: list[WatchlistItem]
+    limit: int = 10
+
+
+class ErrorResponse(BaseModel):
+    detail: str