// file: crates/ksp-app-solprices-desk/frontend/ts/main.ts
// version: 4

import "bootstrap";
import ResizeObserver from "resize-observer-polyfill";
import "simplebar";
import { getCurrentWindow } from "@tauri-apps/api/window";
import type { MarketPriceRuntimeStatusDto } from "./bindings/ksp_app_solprices_desk/dto_common/MarketPriceRuntimeStatusDto.ts";
import type { MarketPriceProviderRowDto } from "./bindings/ksp_app_solprices_desk/market_price_runtime/MarketPriceProviderRowDto.ts";
import { frontendDebug, frontendInfo, frontendTrace, frontendWarn, installFrontendConsoleBridge } from "./frontend_log";
import { invokeKsp } from "./invoke";

(window as Window & typeof globalThis & { ResizeObserver?: typeof ResizeObserver }).ResizeObserver = ResizeObserver;
installFrontendConsoleBridge("main");

type ViewId = "prices" | "diagnostics";

const viewTitles: Record<ViewId, string> = {
    prices: "Prices",
    diagnostics: "Diagnostics",
};

function isViewId(value: string | undefined): value is ViewId {
    return value === "prices" || value === "diagnostics";
}

function activateView(viewId: ViewId, source: "startup" | "user"): void {
    document.querySelectorAll<HTMLElement>("[data-view-panel]").forEach(panel => {
        panel.hidden = panel.dataset.viewPanel !== viewId;
    });
    document.querySelectorAll<HTMLButtonElement>("[data-view]").forEach(button => {
        button.classList.toggle("active", button.dataset.view === viewId);
    });
    const header = document.querySelector<HTMLElement>("#headerViewTitle");
    if (header) {
        header.textContent = viewTitles[viewId];
    }
    document.title = `SOL Prices Desk — ${viewTitles[viewId]}`;
    if (source !== "startup") {
        frontendDebug("main", "SOL Prices Desk view activated", { viewId, source });
    }
}

function bindNavigation(): void {
    document.querySelectorAll<HTMLButtonElement>("[data-view]").forEach(button => {
        button.addEventListener("click", () => {
            const viewId = button.dataset.view;
            frontendDebug("main", "SOL Prices Desk navigation control clicked", { viewId: viewId ?? "unknown" });
            if (isViewId(viewId)) {
                activateView(viewId, "user");
            }
        });
    });
    frontendTrace("main", "SOL Prices Desk navigation handlers installed");
}

function appendMarketPriceCell(row: HTMLTableRowElement, value: string): void {
    const cell = document.createElement("td");
    cell.textContent = value;
    row.append(cell);
}

function renderMarketPriceRows(rows: MarketPriceProviderRowDto[]): void {
    const loading = document.querySelector<HTMLElement>("#pricesLoading");
    const empty = document.querySelector<HTMLElement>("#pricesEmpty");
    const tableContainer = document.querySelector<HTMLElement>("#pricesTableContainer");
    const tableBody = document.querySelector<HTMLTableSectionElement>("#marketPriceRows");
    if (loading) {
        loading.hidden = true;
    }
    if (!tableBody || !tableContainer || !empty) {
        frontendWarn("main", "SOL Prices Desk market-price table elements are missing");
        return;
    }
    tableBody.replaceChildren();
    empty.hidden = rows.length !== 0;
    tableContainer.hidden = rows.length === 0;
    for (const provider of rows) {
        const row = document.createElement("tr");
        appendMarketPriceCell(row, provider.displayName);
        appendMarketPriceCell(row, provider.pair);
        appendMarketPriceCell(row, provider.semantics);
        appendMarketPriceCell(row, provider.authMode);
        appendMarketPriceCell(row, provider.loading ? "loading" : provider.availability);
        appendMarketPriceCell(row, provider.price ?? "—");
        appendMarketPriceCell(row, provider.providerTimestampUnixMillis ?? "—");
        appendMarketPriceCell(row, provider.receivedAtUnixMillis ?? "—");
        appendMarketPriceCell(row, provider.retryAtUnixMillis ?? "—");
        tableBody.append(row);
    }
    frontendTrace("main", "SOL Prices Desk market-price registry rows rendered", { rowCount: rows.length });
}

function renderRuntimeStatus(status: MarketPriceRuntimeStatusDto): void {
    const values: Record<string, string> = {
        runtimeCompositeProfile: status.activeCompositeProfile,
        runtimeOffchainProfile: status.activeOffchainProfile,
        runtimeVersion: status.applicationVersion,
        runtimeShellPhase: status.shellPhase,
        runtimeConfigDocuments: status.configDocumentCount.toString(),
        runtimeProviderCount: status.providerCount.toString(),
        runtimeReadyProviderCount: status.readyProviderCount.toString(),
        runtimeUnavailableProviderCount: status.unavailableProviderCount.toString(),
        runtimeLoggingProfile: status.activeLoggingProfile ?? "fallback",
        runtimeLoggingFallback: status.fallbackLoggingActive ? "oui" : "non",
    };
    for (const [elementId, value] of Object.entries(values)) {
        const element = document.querySelector<HTMLElement>(`#${elementId}`);
        if (element) {
            element.textContent = value;
        }
    }
    const diagnostic = document.querySelector<HTMLElement>("#runtimeDiagnostic");
    if (diagnostic) {
        diagnostic.hidden = status.startupDiagnostic === null;
        diagnostic.textContent = status.startupDiagnostic === null ? "" : `${status.startupDiagnostic.domain}:${status.startupDiagnostic.code} — ${status.startupDiagnostic.message}`;
    }
    frontendTrace("main", "SOL Prices Desk market-price runtime status rendered", {
        fallbackLoggingActive: status.fallbackLoggingActive,
        configDocumentCount: status.configDocumentCount,
        providerCount: status.providerCount,
        readyProviderCount: status.readyProviderCount,
        unavailableProviderCount: status.unavailableProviderCount,
    });
}

async function loadMarketPrices(): Promise<void> {
    frontendTrace("main", "SOL Prices Desk provider registry load started");
    const rows = await invokeKsp<MarketPriceProviderRowDto[]>("main", "list_market_prices");
    renderMarketPriceRows(rows);
    frontendTrace("main", "SOL Prices Desk provider registry load completed", { rowCount: rows.length });
}

async function loadRuntimeStatus(): Promise<void> {
    const status = await invokeKsp<MarketPriceRuntimeStatusDto>("main", "get_runtime_status");
    renderRuntimeStatus(status);
}

async function initializeMain(): Promise<void> {
    const windowLabel = getCurrentWindow().label;
    frontendInfo("main", "SOL Prices Desk main frontend loaded", { windowLabel });
    bindNavigation();
    activateView("prices", "startup");
    try {
        await loadRuntimeStatus();
    } catch {
        const diagnostic = document.querySelector<HTMLElement>("#runtimeDiagnostic");
        if (diagnostic) {
            diagnostic.hidden = false;
            diagnostic.textContent = "Le statut runtime initial n'a pas pu être chargé.";
        }
        frontendWarn("main", "SOL Prices Desk startup runtime status load failed");
    }
    try {
        await loadMarketPrices();
    } catch {
        const loading = document.querySelector<HTMLElement>("#pricesLoading");
        const diagnostic = document.querySelector<HTMLElement>("#pricesDiagnostic");
        if (loading) {
            loading.hidden = true;
        }
        if (diagnostic) {
            diagnostic.hidden = false;
            diagnostic.textContent = "L'inventaire provider-neutral n'a pas pu être chargé.";
        }
        frontendWarn("main", "SOL Prices Desk provider registry load failed");
    }
}

document.addEventListener("DOMContentLoaded", () => {
    void initializeMain();
});