/// <reference path="../common/UIContainer.ts" />

module TK.SpaceTac.UI {
    /**
     * Bar on the border of screen to display all available action icons
     */
    export class ActionBar extends UIContainer {
        // Link to the parent battleview
        battleview: BattleView

        // List of action icons
        actions: UIContainer
        action_icons: ActionIcon[]

        // Current ship, whose actions are displayed
        ship: Ship | null

        // Interactivity
        interactive = true;

        // Create an empty action bar
        constructor(battleview: BattleView) {
            super(battleview);

            this.battleview = battleview;
            this.action_icons = [];
            this.ship = null;

            battleview.layer_borders.add(this);

            let builder = new UIBuilder(battleview, this);

            // Group for actions
            this.actions = builder.container("actions", 86, 6);
            builder.in(this.actions).image("battle-actionbar-actions-background");

            this.setInteractivity(false);
        }

        /**
         * Check if an action is selected
         */
        hasActionSelected(): boolean {
            return any(this.action_icons, icon => icon.selected);
        }

        /**
         * Set the interactivity state
         */
        setInteractivity(interactive: boolean) {
            if (this.interactive != interactive) {
                this.interactive = interactive;
                this.battleview.animations.setVisible(this.actions, interactive, 100, 1, 0.3);
            }
        }

        /**
         * Called when an action shortcut key is pressed
         */
        keyActionPressed(position: number) {
            if (this.interactive) {
                if (position < 0) {
                    this.action_icons[this.action_icons.length - 1].processClick();
                } else if (position < this.action_icons.length - 1) {
                    this.action_icons[position].processClick();
                }
            }
        }

        /**
         * Remove all the action icons
         */
        clearAll(): void {
            this.action_icons.forEach(action => action.destroy());
            this.action_icons = [];
        }

        /**
         * Add an action icon
         */
        addAction(ship: Ship, action: BaseAction): ActionIcon {
            var icon = new ActionIcon(this, ship, action, this.action_icons.length);
            icon.moveTo(this.actions, 74 + this.action_icons.length * 138, 58);
            this.action_icons.push(icon);

            return icon;
        }

        /**
         * Set the bar to display a given ship
         */
        setShip(ship: Ship | null): void {
            this.clearAll();

            if (ship && this.battleview.player.is(ship.fleet.player) && ship.alive) {
                ship.actions.listAll().forEach(action => this.addAction(ship, action));
                this.ship = ship;
            } else {
                this.ship = null;
            }
        }

        // Called by an action icon when the action is selected
        actionStarted(): void {
        }

        // Called by an action icon when the action has been applied
        actionEnded(): void {
            this.battleview.exitTargettingMode();
            this.action_icons.forEach(action => action.refresh());
        }
    }
}