80a8ffae0c
- Create PortfolioConfig dataclass with validation - Add PortfolioRepository for file-based persistence - Update settings page with live LTV calculations - Add real-time calculated displays (LTV, margin buffer, margin call price)
196 lines
8.9 KiB
Python
196 lines
8.9 KiB
Python
from __future__ import annotations
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from nicegui import ui
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from app.pages.common import dashboard_page
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from app.models.portfolio import PortfolioConfig, get_portfolio_repository
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@ui.page("/settings")
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def settings_page():
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"""Settings page with persistent portfolio configuration."""
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# Load current configuration
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repo = get_portfolio_repository()
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config = repo.load()
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with dashboard_page(
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"Settings",
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"Configure portfolio assumptions, preferred market data inputs, alert thresholds, and import/export behavior.",
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"settings",
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):
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with ui.row().classes("w-full gap-6 max-lg:flex-col"):
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with ui.card().classes(
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"w-full rounded-2xl border border-slate-200 bg-white shadow-sm dark:border-slate-800 dark:bg-slate-900"
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):
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ui.label("Portfolio Parameters").classes("text-lg font-semibold text-slate-900 dark:text-slate-100")
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gold_value = ui.number(
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"Gold collateral value ($)",
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value=config.gold_value,
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min=0.01, # Must be positive
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step=1000
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).classes("w-full")
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loan_amount = ui.number(
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"Loan amount ($)",
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value=config.loan_amount,
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min=0,
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step=1000
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).classes("w-full")
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margin_threshold = ui.number(
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"Margin call LTV threshold",
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value=config.margin_threshold,
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min=0.1,
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max=0.95,
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step=0.01
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).classes("w-full")
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monthly_budget = ui.number(
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"Monthly hedge budget ($)",
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value=config.monthly_budget,
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min=0,
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step=500
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).classes("w-full")
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# Show calculated values
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with ui.row().classes("w-full gap-2 mt-4 p-4 bg-slate-50 dark:bg-slate-800 rounded-lg"):
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ui.label("Current LTV:").classes("font-medium")
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ltv_display = ui.label(f"{(config.loan_amount / config.gold_value * 100):.1f}%")
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ui.label("Margin buffer:").classes("font-medium ml-4")
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buffer_display = ui.label(f"{((config.margin_threshold - config.loan_amount / config.gold_value) * 100):.1f}%")
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ui.label("Margin call at:").classes("font-medium ml-4")
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margin_price_display = ui.label(f"${(config.loan_amount / config.margin_threshold):,.2f}")
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with ui.card().classes(
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"w-full rounded-2xl border border-slate-200 bg-white shadow-sm dark:border-slate-800 dark:bg-slate-900"
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):
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ui.label("Data Sources").classes("text-lg font-semibold text-slate-900 dark:text-slate-100")
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primary_source = ui.select(
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["yfinance", "ibkr", "alpaca"],
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value=config.primary_source,
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label="Primary source",
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).classes("w-full")
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fallback_source = ui.select(
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["fallback", "yfinance", "manual"],
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value=config.fallback_source,
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label="Fallback source",
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).classes("w-full")
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refresh_interval = ui.number(
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"Refresh interval (seconds)",
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value=config.refresh_interval,
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min=1,
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step=1
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).classes("w-full")
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def update_calculations():
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"""Update calculated displays when values change."""
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try:
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gold = gold_value.value or 1 # Avoid division by zero
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loan = loan_amount.value or 0
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margin = margin_threshold.value or 0.75
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ltv = (loan / gold) * 100
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buffer = (margin - loan / gold) * 100
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margin_price = loan / margin if margin > 0 else 0
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ltv_display.set_text(f"{ltv:.1f}%")
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buffer_display.set_text(f"{buffer:.1f}%")
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margin_price_display.set_text(f"${margin_price:,.2f}")
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except Exception:
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pass # Ignore calculation errors during editing
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# Connect update function to value changes
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gold_value.on_value_change(update_calculations)
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loan_amount.on_value_change(update_calculations)
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margin_threshold.on_value_change(update_calculations)
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with ui.row().classes("w-full gap-6 max-lg:flex-col"):
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with ui.card().classes(
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"w-full rounded-2xl border border-slate-200 bg-white shadow-sm dark:border-slate-800 dark:bg-slate-900"
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):
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ui.label("Alert Thresholds").classes("text-lg font-semibold text-slate-900 dark:text-slate-100")
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ltv_warning = ui.number(
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"LTV warning level",
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value=config.ltv_warning,
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min=0.1,
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max=0.95,
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step=0.01
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).classes("w-full")
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vol_alert = ui.number(
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"Volatility spike alert",
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value=config.volatility_spike,
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min=0.01,
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max=2.0,
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step=0.01
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).classes("w-full")
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price_alert = ui.number(
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"Spot drawdown alert (%)",
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value=config.spot_drawdown,
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min=0.1,
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max=50.0,
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step=0.5
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).classes("w-full")
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email_alerts = ui.switch(
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"Email alerts",
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value=config.email_alerts
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)
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with ui.card().classes(
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"w-full rounded-2xl border border-slate-200 bg-white shadow-sm dark:border-slate-800 dark:bg-slate-900"
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):
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ui.label("Export / Import").classes("text-lg font-semibold text-slate-900 dark:text-slate-100")
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export_format = ui.select(
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["json", "csv", "yaml"],
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value="json",
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label="Export format"
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).classes("w-full")
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ui.switch("Include scenario history", value=True)
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ui.switch("Include option selections", value=True)
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ui.button("Import settings", icon="upload").props("outline color=primary")
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ui.button("Export settings", icon="download").props("outline color=primary")
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def save_settings():
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"""Save settings with validation and persistence."""
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try:
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# Create new config from form values
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new_config = PortfolioConfig(
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gold_value=float(gold_value.value),
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loan_amount=float(loan_amount.value),
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margin_threshold=float(margin_threshold.value),
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monthly_budget=float(monthly_budget.value),
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ltv_warning=float(ltv_warning.value),
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primary_source=str(primary_source.value),
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fallback_source=str(fallback_source.value),
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refresh_interval=int(refresh_interval.value),
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volatility_spike=float(vol_alert.value),
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spot_drawdown=float(price_alert.value),
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email_alerts=bool(email_alerts.value),
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)
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# Save to repository
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repo.save(new_config)
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status.set_text(
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f"Saved: gold=${new_config.gold_value:,.0f}, "
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f"loan=${new_config.loan_amount:,.0f}, "
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f"LTV={new_config.current_ltv:.1%}, "
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f"margin={new_config.margin_threshold:.1%}, "
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f"buffer={new_config.margin_buffer:.1%}"
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)
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ui.notify("Settings saved successfully", color="positive")
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except ValueError as e:
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ui.notify(f"Validation error: {e}", color="negative")
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except Exception as e:
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ui.notify(f"Failed to save: {e}", color="negative")
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with ui.row().classes("w-full items-center justify-between gap-4 mt-6"):
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status = ui.label(
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f"Current: gold=${config.gold_value:,.0f}, loan=${config.loan_amount:,.0f}, "
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f"current LTV={config.current_ltv:.1%}"
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).classes("text-sm text-slate-500 dark:text-slate-400")
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ui.button("Save settings", on_click=save_settings).props("color=primary")
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