import {ItemGroup} from "../game-model/inventory/ItemGroup";
import {StoreComponent} from "../../../../app/storage/StoreComponent";
import {AbstractItemGroup} from "../game-model/inventory/AbstractItemGroup";
import {ConcreteItemGroup} from "../game-model/inventory/ConcreteItemGroup";
import {ModelComponentType} from "../game-model/ModelComponentType";
import {SerializeConstants} from "./SerializeConstants";
import {Item} from "../game-model/inventory/Item";
import {ItemgroupType} from "../game-model/inventory/ItemgroupType";

export class ItemSerializer {

  private serializedItemgroups: StoreComponent[] = []
  private serializedItems: StoreComponent[] = []
  private static ignoredGroupKeys: string[] = ['type', 'unsaved', "itemgroup", "manuallyInheritedGroups", "hierarchyInheritedGroups", "items"]
  private static ignoredItemKeys: string[] = ['type', 'unsaved']

  public serializeItemgroups(itemgroups: ItemGroup[]): StoreComponent[] {
    itemgroups.forEach(itemgroup => {
      this.serializeSingleItemgroupHierarchy(itemgroup)
    })
    return this.serializedItemgroups;
  }

  private serializeSingleItemgroupHierarchy(itemgroup: ItemGroup) {
    if(itemgroup instanceof AbstractItemGroup) {
      const storeComponent = this.serializeAbstractItemgroup(itemgroup)
      this.serializedItemgroups.push(storeComponent)
      itemgroup.children.forEach(child => this.serializeSingleItemgroupHierarchy(child));
    } else {
      const storeComponent = this.serializeConcreteItemgroup(itemgroup as ConcreteItemGroup);
      this.serializedItemgroups.push(storeComponent)

      this.serializeItemsOfItemgroup(itemgroup as ConcreteItemGroup);
    }
  }

  private serializeAbstractItemgroup(itemgroup: AbstractItemGroup): StoreComponent {
    const componentType = ModelComponentType.ITEMGROUP;
    const fileName = ItemSerializer.computeItemgroupPath(itemgroup);

    const jsonObject = {
      componentName: itemgroup.componentName,
      componentDescription: itemgroup.componentDescription,
      itemGroupCharacteristics: itemgroup.itemGroupCharacteristics.map(characteristic => {
        return {
          characteristicName: characteristic.characteristicName,
          characteristicDescription: characteristic.characteristicDescription
        }
      }),
      parentgroup: itemgroup.parentGroup,
      itemgroupType: ItemgroupType.ABSTRACT
    };

    const jsonString = JSON.stringify(jsonObject, (key, value) => {
      return value;
    }, SerializeConstants.JSON_INDENT);
    return new StoreComponent(jsonString, fileName, componentType)
  }

  private serializeConcreteItemgroup(itemgroup: ConcreteItemGroup) {
    const componentType = ModelComponentType.ITEMGROUP;
    const fileName = ItemSerializer.computeItemgroupPath(itemgroup);

    const jsonObject = {
      componentName: itemgroup.componentName,
      componentDescription: itemgroup.componentDescription,
      itemGroupCharacteristics: itemgroup.itemGroupCharacteristics.map(characteristic => {
        return {
          characteristicName: characteristic.characteristicName,
          characteristicDescription: characteristic.characteristicDescription
        }
      }),
      itemgroupType: ItemgroupType.CONCRETE,
      parentgroup: itemgroup.parentGroup?.componentName
    };

    const jsonString = JSON.stringify(jsonObject, (key, value) => {
      return value;
    }, SerializeConstants.JSON_INDENT);
    return new StoreComponent(jsonString, fileName, componentType)
  }

  private static computeItemgroupPath(itemgroup: ItemGroup, itemPath: boolean = false): string {
    const itemgroupPath: string[] = [];
    itemgroupPath.push(itemgroup.componentName);

    if(!itemPath) {
      itemgroupPath.push(itemgroup.componentName);
    }


    while(itemgroup.parentGroup !== undefined) {
      itemgroupPath.unshift(itemgroup.parentGroup.componentName);
      itemgroup = itemgroup.parentGroup;
    }

    return itemgroupPath.join("/");
  }

  private serializeItemsOfItemgroup(itemgroup: ConcreteItemGroup) {
    const fileName = ItemSerializer.computeItemgroupPath(itemgroup, true);
    itemgroup.items.forEach(item => {
      const storeComponent = this.serializeSingleItem(fileName, item);
      this.serializedItems.push(storeComponent)
    })


  }

  private serializeSingleItem(itemgroupPath: string, item: Item) {
    const itemFile = itemgroupPath + "/" + item.componentName;

    const jsonString = JSON.stringify(item, (key, value) => {
      if(ItemSerializer.ignoredItemKeys.includes(key)) {
        return undefined
      }

      if(value instanceof ItemGroup) {
        return value.componentName
      }

      if(key == "key") {
        return value.characteristicName
      }

      return value;
    }, SerializeConstants.JSON_INDENT)

    return new StoreComponent(jsonString, itemFile, ModelComponentType.ITEM)
  }

  getSerializedItems() {
    return this.serializedItems;
  }
}