Add company analysis view with financials, price history, filings, and AI reports

lib/server/prices.ts

@@ -42,3 +42,73 @@ export async function getQuote(ticker: string): Promise<number> {
     return fallbackQuote(normalizedTicker);
   }
 }
+
+export async function getPriceHistory(ticker: string): Promise<Array<{ date: string; close: number }>> {
+  const normalizedTicker = ticker.trim().toUpperCase();
+
+  try {
+    const response = await fetch(`${YAHOO_BASE}/${normalizedTicker}?interval=1wk&range=1y`, {
+      headers: {
+        'User-Agent': 'Mozilla/5.0 (compatible; FiscalClone/3.0)'
+      },
+      cache: 'no-store'
+    });
+
+    if (!response.ok) {
+      throw new Error('Quote history unavailable');
+    }
+
+    const payload = await response.json() as {
+      chart?: {
+        result?: Array<{
+          timestamp?: number[];
+          indicators?: {
+            quote?: Array<{
+              close?: Array<number | null>;
+            }>;
+          };
+        }>;
+      };
+    };
+
+    const result = payload.chart?.result?.[0];
+    const timestamps = result?.timestamp ?? [];
+    const closes = result?.indicators?.quote?.[0]?.close ?? [];
+
+    const points = timestamps
+      .map((timestamp, index) => {
+        const close = closes[index];
+        if (typeof close !== 'number' || !Number.isFinite(close)) {
+          return null;
+        }
+
+        return {
+          date: new Date(timestamp * 1000).toISOString(),
+          close
+        };
+      })
+      .filter((entry): entry is { date: string; close: number } => entry !== null);
+
+    if (points.length > 0) {
+      return points;
+    }
+  } catch {
+    // fall through to deterministic synthetic history
+  }
+
+  const now = Date.now();
+  const base = fallbackQuote(normalizedTicker);
+
+  return Array.from({ length: 26 }, (_, index) => {
+    const step = 25 - index;
+    const date = new Date(now - step * 14 * 24 * 60 * 60 * 1000).toISOString();
+    const wave = Math.sin(index / 3.5) * 0.05;
+    const trend = (index - 13) * 0.006;
+    const close = Math.max(base * (1 + wave + trend), 1);
+
+    return {
+      date,
+      close: Number(close.toFixed(2))
+    };
+  });
+}