import OathHammerItemSheet from "./base-item-sheet.mjs"
import { SYSTEM } from "../../config/system.mjs"

export default class OathHammerRegimentSheet extends OathHammerItemSheet {
  /** @override */
  static DEFAULT_OPTIONS = {
    classes: ["regiment"],
    position: { width: 560, height: "auto" },
    window: { contentClasses: ["regiment-content"] },
    actions: {
      addSkill:    OathHammerRegimentSheet.#onAddSkill,
      removeSkill: OathHammerRegimentSheet.#onRemoveSkill,
      addAttack:   OathHammerRegimentSheet.#onAddAttack,
      removeAttack:OathHammerRegimentSheet.#onRemoveAttack,
      addTrait:    OathHammerRegimentSheet.#onAddTrait,
      removeTrait: OathHammerRegimentSheet.#onRemoveTrait,
    },
  }

  /** @override */
  static PARTS = {
    main: { template: "systems/fvtt-oath-hammer/templates/item/regiment-sheet.hbs" },
  }

  /** @override */
  async _prepareContext() {
    const context = await super._prepareContext()
    context.colorChoices = Object.fromEntries(
      Object.entries(SYSTEM.DICE_COLOR_TYPES).map(([k, v]) => [k, game.i18n.localize(v)])
    )
    context.dicePoolChoices = Object.fromEntries(
      Array.from({ length: 21 }, (_, i) => [i, String(i)])
    )
    context.apChoices = Object.fromEntries(
      Array.from({ length: 7 }, (_, i) => [i, String(i)])
    )
    return context
  }

  // ── Array helpers ────────────────────────────────────────────────────────────

  static async #onAddSkill() {
    const skills = foundry.utils.deepClone(this.document.system.skills ?? [])
    skills.push({ name: "", value: 2, colorDiceType: "white" })
    await this.document.update({ "system.skills": skills })
  }

  static async #onRemoveSkill(event, target) {
    const idx = parseInt(target.dataset.idx, 10)
    const skills = foundry.utils.deepClone(this.document.system.skills ?? [])
    skills.splice(idx, 1)
    await this.document.update({ "system.skills": skills })
  }

  static async #onAddAttack() {
    const attacks = foundry.utils.deepClone(this.document.system.attacks ?? [])
    attacks.push({ name: "", damageDice: 6, colorDiceType: "white", ap: 0, special: "" })
    await this.document.update({ "system.attacks": attacks })
  }

  static async #onRemoveAttack(event, target) {
    const idx = parseInt(target.dataset.idx, 10)
    const attacks = foundry.utils.deepClone(this.document.system.attacks ?? [])
    attacks.splice(idx, 1)
    await this.document.update({ "system.attacks": attacks })
  }

  static async #onAddTrait() {
    const traits = foundry.utils.deepClone(this.document.system.traits ?? [])
    traits.push({ name: "", description: "" })
    await this.document.update({ "system.traits": traits })
  }

  static async #onRemoveTrait(event, target) {
    const idx = parseInt(target.dataset.idx, 10)
    const traits = foundry.utils.deepClone(this.document.system.traits ?? [])
    traits.splice(idx, 1)
    await this.document.update({ "system.traits": traits })
  }
}