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models/mvd_tcg_card.py

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+"""Deck integration on top of game-neutral card references."""
+
+from odoo import _, api, fields, models
+
+
+class MvdTcgCard(models.Model):
+    """Extend cards with deck usage helpers."""
+
+    _inherit = "mvd.tcg.card"
+
+    deck_line_ids = fields.One2many(
+        "mvd.tcg.deck.line",
+        "card_id",
+        string="Deck Lines",
+        readonly=True,
+    )
+    deck_count = fields.Integer(
+        compute="_compute_deck_count",
+        readonly=True,
+    )
+
+    @api.depends("deck_line_ids.deck_id")
+    def _compute_deck_count(self):
+        """Compute how many distinct decks reference each card.
+
+        Returns:
+            None: The method updates records in place.
+        """
+        for card in self:
+            card.deck_count = len(card.deck_line_ids.mapped("deck_id"))
+
+    def action_open_decks(self):
+        """Open all decks that reference the current card.
+
+        Returns:
+            dict: Window action filtered to linked decks.
+        """
+        self.ensure_one()
+        deck_ids = self.deck_line_ids.mapped("deck_id").ids
+        action = self.env["ir.actions.actions"]._for_xml_id(
+            "mvd_tcg_deck.mvd_tcg_deck_action"
+        )
+        action["domain"] = [("id", "in", deck_ids or [0])]
+        if self.game_id:
+            action["context"] = {"default_game_id": self.game_id.id}
+        return action
+
+    def action_open_add_to_deck_wizard(self):
+        """Open the deck-assignment wizard for the current card.
+
+        Returns:
+            dict: Modal wizard action.
+        """
+        self.ensure_one()
+        return {
+            "type": "ir.actions.act_window",
+            "name": _("Add to Deck"),
+            "res_model": "mvd.tcg.add.to.deck",
+            "view_mode": "form",
+            "target": "new",
+            "context": {
+                "default_card_id": self.id,
+                "default_game_id": self.game_id.id,
+                "active_model": self._name,
+                "active_id": self.id,
+            },
+        }