daggerheart/module/data/armor.mjs

export default class DhpArmor extends foundry.abstract.TypeDataModel {
  static defineSchema() {
    const fields = foundry.data.fields;
    return {
      baseScore: new fields.NumberField({ initial: 1, integer: true }),
      feature: new fields.StringField({
        choices: SYSTEM.ITEM.armorFeatures,
        integer: false,
        blank: true,
      }),
      marks: new fields.SchemaField({
        max: new fields.NumberField({ initial: 6, integer: true }),
        value: new fields.NumberField({ initial: 0, integer: true }),
      }),
      baseThresholds: new fields.SchemaField({
        major: new fields.NumberField({ initial: 0, integer: true }),
        severe: new fields.NumberField({ initial: 0, integer: true }),
      }),
      description: new fields.HTMLField({}),
    };
  }

  get featureInfo() {
    return this.feature
      ? CONFIG.daggerheart.ITEM.armorFeatures[this.feature]
      : null;
  }

  prepareDerivedData() {
    if (this.parent.parent) {
      this.applyLevels();
    }
  }

  // Currently bugged as it double triggers. Should get fixed in an updated foundry version.
  applyLevels() {
    // let armorBonus = 0;
    // for(var level in this.parent.parent.system.levelData.levelups){
    //   var levelData = this.parent.parent.system.levelData.levelups[level];
    //   for(var tier in levelData){
    //     var tierData = levelData[tier];
    //     if(tierData){
    //       armorBonus += Object.keys(tierData.armorOrEvasionSlot).filter(x => tierData.armorOrEvasionSlot[x] === 'armor').length;
    //     }
    //   }
    // }
    // this.marks.max += armorBonus;
  }
}