module TK.SpaceTac.UI {
    /**
     * Displays and maintain a battle plan
     */
    export class PlanDisplay {
        readonly container: UIContainer

        constructor(builder: UIBuilder) {
            this.container = builder.container("battleplan");
        }

        update(plan: BattlePlan): void {
            this.updateBattle(plan, this.container);
        }

        private updateBattle(plan: BattlePlan, parent: UIContainer) {
            const builder = parent.getBuilder();

            if (parent.list.length > plan.fleets.length) {
                builder.clear();
            }

            while (parent.list.length < plan.fleets.length) {
                builder.container("fleetplan");
            }

            iforeach(izip(plan.fleets, ifilterclass(parent.list, UIContainer)), ([fleetplan, child]) => {
                this.updateFleet(fleetplan, child);
            });
        }

        private updateFleet(plan: FleetPlan, parent: UIContainer) {
            const builder = parent.getBuilder();

            if (parent.list.length > plan.ships.length) {
                builder.clear();
            }

            while (parent.list.length < plan.ships.length) {
                builder.container("shipplan");
            }

            iforeach(izip(plan.ships, ifilterclass(parent.list, UIContainer)), ([shipplan, child]) => {
                this.updateShip(shipplan, child);
            });
        }

        private updateShip(plan: ShipPlan, parent: UIContainer) {
        }
    }
}