/**
 * sotc-battle-show-ability — main.js
 * Point d'entrée du module.
 */

import { SpeedDiePanelApp } from "./SpeedDiePanelApp.js";

/* ------------------------------------------------------------------ */
/*  Initialisation                                                     */
/* ------------------------------------------------------------------ */

Hooks.once("init", () => {
  console.log("sotc-battle-show-ability | Initialisation du module");

  loadTemplates([
    "modules/sotc-battle-show-ability/templates/speed-die-panel.hbs"
  ]);

  // Note : le helper Handlebars "eq" est déjà enregistré par le système SotC.
});

/* ------------------------------------------------------------------ */
/*  Menu contextuel dans le Combat Tracker                             */
/* ------------------------------------------------------------------ */

Hooks.on("getCombatTrackerEntryContext", (html, options) => {
  if (game.system.id !== "sotc") return;

  options.push({
    name: game.i18n.localize("SOTC_BSA.Panel.Title"),
    icon: '<i class="fas fa-dice-d6"></i>',
    condition: (li) => {
      if (!game.combat) return false;
      const combatantId = li.data("combatant-id");
      const combatant = game.combat.combatants.get(combatantId);
      if (!combatant) return false;
      return combatant.isOwner || game.user.isGM;
    },
    callback: (li) => {
      const combatantId = li.data("combatant-id");
      _openSpeedDiePanel(combatantId);
    }
  });
});

/* ------------------------------------------------------------------ */
/*  Ouverture du panneau                                               */
/* ------------------------------------------------------------------ */

function _openSpeedDiePanel(combatantId) {
  const existing = Object.values(ui.windows).find(
    w => w instanceof SpeedDiePanelApp && w.combatantId === combatantId
  );

  if (existing) {
    existing.render(true);
    existing.bringToTop();
    return;
  }

  const panel = new SpeedDiePanelApp(combatantId);

  const combatant = game.combat?.combatants.get(combatantId);
  if (combatant) {
    const numDice = combatant.actor?.system?.speed_dice?.num_dice ?? 1;
    // Index visuel : position dans le tri par initiative décroissante
    const sorted = game.combat.combatants
      .filter(c => c.tokenId === combatant.tokenId)
      .sort((a, b) => (b.initiative ?? -Infinity) - (a.initiative ?? -Infinity));
    const dieIndex = sorted.findIndex(c => c.id === combatant.id) + 1;
    panel.options.title = numDice > 1
      ? `${game.i18n.localize("SOTC_BSA.Panel.SpeedDie")} #${dieIndex} — ${combatant.name}`
      : `${game.i18n.localize("SOTC_BSA.Panel.Title")} — ${combatant.name}`;
  }

  panel.render(true);
}

/* ------------------------------------------------------------------ */
/*  Clic droit sur les marqueurs PIXI de SIO                          */
/* ------------------------------------------------------------------ */

function _installSIORightClickHandler() {
  const board = document.getElementById("board");
  if (!board) return;

  if (board._bsaRightClickHandler) {
    board.removeEventListener("mousedown", board._bsaRightClickHandler);
  }

  const handler = async (event) => {
    if (event.button !== 2) return;
    if (!game.combat?.active) return;

    const rect = board.getBoundingClientRect();
    const screenX = event.clientX - rect.left;
    const screenY = event.clientY - rect.top;

    for (const token of canvas.tokens.placeables) {
      const markers = token._initiativeMarkers;
      if (!markers?.length) continue;

      for (let i = 0; i < markers.length; i++) {
        const m = markers[i];
        const b = m.getBounds();

        const inside =
          screenX >= b.x &&
          screenX <= b.x + b.width &&
          screenY >= b.y &&
          screenY <= b.y + b.height;

        if (!inside) continue;

        const combatants = game.combat.combatants
          .filter(c => c.tokenId === token.document.id)
          .sort((a, b) => (b.initiative ?? -Infinity) - (a.initiative ?? -Infinity));

        const combatant = combatants[i];
        if (!combatant) return;

        if (!combatant.isOwner && !game.user.isGM) return;

        event.preventDefault();
        event.stopPropagation();

        _openSpeedDiePanel(combatant.id);
        return;
      }
    }
  };

  board._bsaRightClickHandler = handler;
  board.addEventListener("mousedown", handler);

  if (!board._bsaContextMenuHandler) {
    board._bsaContextMenuHandler = (event) => {
      const rect = board.getBoundingClientRect();
      const screenX = event.clientX - rect.left;
      const screenY = event.clientY - rect.top;
      for (const token of canvas.tokens.placeables) {
        const markers = token._initiativeMarkers;
        if (!markers?.length) continue;
        for (const m of markers) {
          const b = m.getBounds();
          if (screenX >= b.x && screenX <= b.x + b.width &&
              screenY >= b.y && screenY <= b.y + b.height) {
            event.preventDefault();
            return;
          }
        }
      }
    };
    board.addEventListener("contextmenu", board._bsaContextMenuHandler);
  }
}

Hooks.on("canvasReady", () => {
  _installSIORightClickHandler();
});

/* ------------------------------------------------------------------ */
/*  Réinitialisation au début d'un nouveau round                       */
/* ------------------------------------------------------------------ */

async function _resetAllCombatants(combat) {
  if (!game.user.isGM) return;

  const updates = [];

  for (const combatant of combat.combatants) {
    const actor = combatant.actor;
    if (!actor?.system?.speed_dice) continue;

    updates.push({
      _id: combatant.id,
      "flags.sotc-battle-show-ability.dieState": 0,
      "flags.sotc-battle-show-ability.assignedSkillId": null,
      "flags.sotc.used": false
    });
  }

  if (updates.length > 0) {
    await combat.updateEmbeddedDocuments("Combatant", updates);
    console.log(`sotc-battle-show-ability | ${updates.length} dé(s) réinitialisé(s)`);
  }

  _refreshOpenPanels();
}

Hooks.on("combatRound", async (combat, roundData, options) => {
  if (game.system.id !== "sotc") return;
  console.log("sotc-battle-show-ability | Nouveau round — réinitialisation des dés de vitesse");
  await _resetAllCombatants(combat);
});

Hooks.on("deleteCombat", async (combat, options, userId) => {
  // Fermer les panneaux ouverts
  for (const win of Object.values(ui.windows)) {
    if (win instanceof SpeedDiePanelApp) win.close();
  }
  // Reset des flags (utile si le combat est supprimé sans être terminé)
  console.log("sotc-battle-show-ability | Fin du combat — réinitialisation des dés de vitesse");
  await _resetAllCombatants(combat);
});

/* ------------------------------------------------------------------ */
/*  Rafraîchissement réactif des panneaux ouverts                     */
/* ------------------------------------------------------------------ */

function _refreshOpenPanels() {
  for (const win of Object.values(ui.windows)) {
    if (win instanceof SpeedDiePanelApp) {
      if (!win._checkStillValid()) continue;
      win.render(false);
    }
  }
}

Hooks.on("updateCombatant", (combatant, changes, options, userId) => {
  if (game.system.id !== "sotc") return;

  for (const win of Object.values(ui.windows)) {
    if (win instanceof SpeedDiePanelApp && win.combatantId === combatant.id) {
      win.render(false);
      break;
    }
  }
});

Hooks.on("updateActor", (actor, changes, options, userId) => {
  if (game.system.id !== "sotc") return;

  for (const win of Object.values(ui.windows)) {
    if (win instanceof SpeedDiePanelApp && win.actor?.id === actor.id) {
      win.render(false);
    }
  }
});

Hooks.on("deleteCombatant", (combatant, options, userId) => {
  for (const win of Object.values(ui.windows)) {
    if (win instanceof SpeedDiePanelApp && win.combatantId === combatant.id) {
      win.close();
      break;
    }
  }
});



/* ------------------------------------------------------------------ */
/*  API publique                                                       */
/* ------------------------------------------------------------------ */

Hooks.once("ready", () => {
  game.modules.get("sotc-battle-show-ability").api = {
    openSpeedDiePanel: _openSpeedDiePanel,
    SpeedDiePanelApp
  };

  console.log("sotc-battle-show-ability | Module prêt.");
});