consolidate drip summary

src/commands/portfolio.zig

@@ -364,31 +364,15 @@ pub fn display(
                 const drip = fmt.aggregateDripLots(lots_for_sym.items);
 
                 if (!drip.st.isEmpty()) {
-                    var avg_buf: [24]u8 = undefined;
+                    var drip_buf: [128]u8 = undefined;
-                    var d1_buf: [10]u8 = undefined;
-                    var d2_buf: [10]u8 = undefined;
                     try cli.setFg(out, color, cli.CLR_MUTED);
-                    try out.print("    ST: {d} DRIP lots, {d:.1} shares, avg {s}  ({s} to {s})\n", .{
+                    try out.print("    {s}\n", .{fmt.fmtDripSummary(&drip_buf, "ST", drip.st)});
-                        drip.st.lot_count,
-                        drip.st.shares,
-                        fmt.fmtMoneyAbs(&avg_buf, drip.st.avgCost()),
-                        if (drip.st.first_date) |d| d.format(&d1_buf)[0..7] else "?",
-                        if (drip.st.last_date) |d| d.format(&d2_buf)[0..7] else "?",
-                    });
                     try cli.reset(out, color);
                 }
                 if (!drip.lt.isEmpty()) {
-                    var avg_buf2: [24]u8 = undefined;
+                    var drip_buf2: [128]u8 = undefined;
-                    var d1_buf2: [10]u8 = undefined;
-                    var d2_buf2: [10]u8 = undefined;
                     try cli.setFg(out, color, cli.CLR_MUTED);
-                    try out.print("    LT: {d} DRIP lots, {d:.1} shares, avg {s}  ({s} to {s})\n", .{
+                    try out.print("    {s}\n", .{fmt.fmtDripSummary(&drip_buf2, "LT", drip.lt)});
-                        drip.lt.lot_count,
-                        drip.lt.shares,
-                        fmt.fmtMoneyAbs(&avg_buf2, drip.lt.avgCost()),
-                        if (drip.lt.first_date) |d| d.format(&d1_buf2)[0..7] else "?",
-                        if (drip.lt.last_date) |d| d.format(&d2_buf2)[0..7] else "?",
-                    });
                     try cli.reset(out, color);
                 }
             }

src/format.zig

@@ -427,6 +427,23 @@ pub fn aggregateDripLots(lots: []const Lot) DripAggregation {
     return result;
 }
 
+/// Format a DRIP summary line: "ST: 12 DRIP lots, 3.5 shares, avg $45.67  (2023-01 to 2024-06)"
+pub fn fmtDripSummary(buf: []u8, label: []const u8, summary: DripSummary) []const u8 {
+    var avg_buf: [24]u8 = undefined;
+    var d1_buf: [10]u8 = undefined;
+    var d2_buf: [10]u8 = undefined;
+    const d1: []const u8 = if (summary.first_date) |d| d.format(&d1_buf)[0..7] else "?";
+    const d2: []const u8 = if (summary.last_date) |d| d.format(&d2_buf)[0..7] else "?";
+    return std.fmt.bufPrint(buf, "{s}: {d} DRIP lots, {d:.1} shares, avg {s}  ({s} to {s})", .{
+        label,
+        summary.lot_count,
+        summary.shares,
+        fmtMoneyAbs(&avg_buf, summary.avgCost()),
+        d1,
+        d2,
+    }) catch "?";
+}
+
 // ── Shared rendering helpers (CLI + TUI) ─────────────────────
 
 /// Layout constants for analysis breakdown views.

src/tui/portfolio_tab.zig

@@ -867,20 +867,15 @@ pub fn drawContent(self: *App, arena: std.mem.Allocator, buf: []vaxis.Cell, widt
                 }
             },
             .drip_summary => {
-                const label_str: []const u8 = if (row.drip_is_lt) "LT" else "ST";
+                var drip_buf: [128]u8 = undefined;
-                var drip_avg_buf: [24]u8 = undefined;
+                const drip_text = fmt.fmtDripSummary(&drip_buf, if (row.drip_is_lt) "LT" else "ST", .{
-                var drip_d1_buf: [10]u8 = undefined;
+                    .lot_count = row.drip_lot_count,
-                var drip_d2_buf: [10]u8 = undefined;
+                    .shares = row.drip_shares,
-                const drip_d1: []const u8 = if (row.drip_date_first) |d| d.format(&drip_d1_buf)[0..7] else "?";
+                    .cost = row.drip_shares * row.drip_avg_cost,
-                const drip_d2: []const u8 = if (row.drip_date_last) |d| d.format(&drip_d2_buf)[0..7] else "?";
+                    .first_date = row.drip_date_first,
-                const text = try std.fmt.allocPrint(arena, "    {s}: {d} DRIP lots, {d:.1} shares, avg {s}  ({s} to {s})", .{
+                    .last_date = row.drip_date_last,
-                    label_str,
-                    row.drip_lot_count,
-                    row.drip_shares,
-                    fmt.fmtMoneyAbs(&drip_avg_buf, row.drip_avg_cost),
-                    drip_d1,
-                    drip_d2,
                 });
+                const text = try std.fmt.allocPrint(arena, "    {s}", .{drip_text});
                 const drip_style = if (is_cursor) th.selectStyle() else th.mutedStyle();
                 try lines.append(arena, .{ .text = text, .style = drip_style });
             },