/**
 * DR Quick Button — Foundry VTT v13
 * Adds a button near the chat dice/controls that runs the `/dr` command.
 */

Hooks.once("init", () => {
    console.log("DR Quick Button | Initializing");
});

// Sidebar chat
Hooks.on("renderChatLog", (app, html) => addDRButton(html));

// Mini/Popout chat
Hooks.on("renderChatPopout", (app, html) => addDRButton(html));

/**
 * Adds the DR button to the chat controls
 * @param {HTMLElement|jQuery} html - The application HTML
 */
function addDRButton(html) {
    if (!html) return;
    try {
        // Handle both jQuery (legacy) and HTMLElement (v14/AppV2)
        const root = html instanceof HTMLElement ? html : html[0];
        if (!root) return;

        console.debug("DR Quick Button | addDRButton called. Root element:", root.tagName, root.className, root.getAttribute("data-application-part"));

        // Common selectors for chat controls/roll privacy across versions
        const targetSelectors = [
            "#message-modes",    // Foundry v14+ (Split button container)
            "#chat-controls",    // Generic chat controls
            "#roll-privacy",     // Legacy ID
            ".roll-privacy",     // Legacy class
            ".roll-type-select", // System specific
            ".chat-controls"     // Generic fallback
        ];

        let found = false;
        for (const selector of targetSelectors) {
            // Find targets within the root, or check if the root itself is the target
            let targets = Array.from(root.querySelectorAll(selector));
            if (root.matches && root.matches(selector)) targets.push(root);

            // Fallback: If not found in the provided root part, search the whole document
            // (In v14, the hook might pass only one part of the ApplicationV2)
            if (targets.length === 0) {
                const globalTargets = document.querySelectorAll(selector);
                // Only consider global targets that are actually visible/relevant
                targets = Array.from(globalTargets).filter(t => root.contains(t) || t.closest(".window-app") === root.closest(".window-app") || t.closest("#sidebar") === root.closest("#sidebar"));
            }

            if (targets.length === 0) continue;

            targets.forEach(div => {
                // Avoid duplicates
                if (div.querySelector(".dr-quick-button-container")) return;

                console.log(`DR Quick Button | Adding button to target: ${selector}`);

                const container = document.createElement("div");
                container.className = "dr-quick-button-container";

                const btn = document.createElement("button");
                btn.type = "button";
                btn.className = "ui-control icon fa-solid dr-quick-button";
                btn.title = "Duality Dice Roll";
                btn.setAttribute("aria-label", "Duality Dice Roll");

                // Use the Daggerheart system icon
                btn.innerHTML = `<img src="systems/daggerheart/assets/icons/dice/duality/Daggerheart Foundry_g489.png" alt="DR" style="width:12px; height:16px;">`;
                btn.addEventListener("click", async (event) => {
                    event.preventDefault();
                    await runDRCommand();
                });

                container.appendChild(btn);
                div.appendChild(container);
                found = true;
            });

            if (found) break;
        }

        if (!found) {
            console.debug("DR Quick Button | No suitable target found in root or related containers.");
        }

    } catch (err) {
        console.error("DR Quick Button | addDRButton error:", err);
    }
}

/** Run `/dr` as if typed into chat */
async function runDRCommand() {
    try {
        await ui?.chat?.processMessage("/dr");
    } catch (err) {
        console.error("DR Quick Button | Failed to send /dr command:", err);
        ui.notifications?.warn("Couldn't run /dr automatically. Try typing /dr in chat.");
    }
}