import { SYSTEM } from '../../config/system.mjs'

export let ActionHandler = null

Hooks.once('tokenActionHudCoreApiReady', async (coreModule) => {
  ActionHandler = class ActionHandler extends coreModule.api.ActionHandler {

    /** @override */
    async buildSystemActions(groupIds) {
      this.actors = (!this.actor) ? this._getActors() : [this.actor]
      this.actorType = this.actor?.type

      if (this.actorType === 'character') {
        await this.#buildCharacterActions()
      } else if (this.actorType === 'creature') {
        await this.#buildCreatureActions()
      }
    }

    async #buildCharacterActions() {
      await this.#buildAttributes()
      await this.#buildHP()
      await this.#buildFlow()
      await this.#buildWeapons()
      await this.#buildConditions()
      await this.#buildAbilities()
      await this.#buildKits()
      await this.#buildUtility()
    }

    async #buildCreatureActions() {
      await this.#buildAttributes()
      await this.#buildHP()
    }

    async #buildAttributes() {
      const actions = []
      const attrKeys = ['agility', 'fitness', 'awareness', 'influence']
      const labelKeys = {
        agility:   'AWEMMY.Attribute.Agility',
        fitness:   'AWEMMY.Attribute.Fitness',
        awareness: 'AWEMMY.Attribute.Awareness',
        influence: 'AWEMMY.Attribute.Influence'
      }
      for (const key of attrKeys) {
        const attr = this.actor.system.attributes?.[key]
        if (!attr) continue
        const mod = attr.mod ?? 0
        const modText = mod >= 0 ? `+${mod}` : `${mod}`
        actions.push({
          name: coreModule.api.Utils.i18n(labelKeys[key]),
          id: key,
          info1: { text: modText },
          encodedValue: ['attribute', key].join(this.delimiter)
        })
      }
      await this.addActions(actions, { id: 'attributes', type: 'system' })
    }

    async #buildHP() {
      const hp = this.actor.system.hp
      if (!hp) return
      const tooltip = { content: `${hp.value} / ${hp.max}`, direction: 'LEFT' }
      const actions = [
        {
          name: `${hp.value} / ${hp.max}`,
          id: 'hp_display',
          tooltip,
          encodedValue: ['hp', 'display'].join(this.delimiter)
        },
        {
          name: '+',
          id: 'hp_add',
          tooltip,
          encodedValue: ['hp', 'add'].join(this.delimiter)
        },
        {
          name: '−',
          id: 'hp_sub',
          tooltip,
          encodedValue: ['hp', 'sub'].join(this.delimiter)
        }
      ]
      await this.addActions(actions, { id: 'hp', type: 'system' })
    }

    async #buildFlow() {
      const fp = this.actor.system.flowPoints
      if (fp === undefined) return
      const tooltip = { content: `FP: ${fp.value}`, direction: 'LEFT' }
      const actions = [
        {
          name: `${fp.value} FP`,
          id: 'flow_display',
          tooltip,
          encodedValue: ['flow', 'display'].join(this.delimiter)
        },
        {
          name: '+',
          id: 'flow_add',
          tooltip,
          encodedValue: ['flow', 'add'].join(this.delimiter)
        },
        {
          name: '−',
          id: 'flow_sub',
          tooltip,
          encodedValue: ['flow', 'sub'].join(this.delimiter)
        }
      ]
      await this.addActions(actions, { id: 'flow', type: 'system' })
    }

    async #buildWeapons() {
      const weapons = this.actor.itemTypes?.weapon ?? []
      for (const weapon of weapons) {
        const attrId = weapon.system.attackAttribute
        const attr = this.actor.system.attributes?.[attrId]
        const mod = attr?.mod ?? 0
        const modText = mod >= 0 ? `+${mod}` : `${mod}`

        const groupData = { id: `weapon_${weapon.id}`, name: weapon.name, type: 'system' }
        this.addGroup(groupData, { id: 'weapons', type: 'system' }, true)

        const actions = [{
          name: weapon.name,
          id: `weapon_${weapon.id}`,
          info1: { text: modText },
          encodedValue: ['weapon', weapon.id].join(this.delimiter)
        }]
        await this.addActions(actions, { id: `weapon_${weapon.id}`, type: 'system' })
      }
    }

    async #buildConditions() {
      const actions = []
      for (const [key, cond] of Object.entries(SYSTEM.CONDITIONS)) {
        const isActive = this.actor.statuses?.has(key) ?? false
        actions.push({
          name: coreModule.api.Utils.i18n(cond.label),
          id: key,
          info1: { text: isActive ? '✓' : '' },
          encodedValue: ['condition', key].join(this.delimiter)
        })
      }
      await this.addActions(actions, { id: 'conditions', type: 'system' })
    }

    async #buildAbilities() {
      const abilities = this.actor.itemTypes?.ability ?? []
      const actions = []
      for (const ability of abilities) {
        const sys = ability.system
        const costLabel = game.i18n.localize(SYSTEM.ABILITY_COST[sys.cost]?.label ?? sys.cost)
        const isUsed = sys.usedToday
        actions.push({
          name: ability.name,
          id: ability.id,
          info1: { text: isUsed ? `${costLabel} ✓` : costLabel },
          encodedValue: ['ability', ability.id].join(this.delimiter)
        })
      }
      await this.addActions(actions, { id: 'abilities', type: 'system' })
    }

    async #buildKits() {
      const kits = this.actor.itemTypes?.kit ?? []
      const actions = []
      for (const kit of kits) {
        const charges = kit.system.charges
        const chargesText = `${charges.value}/${charges.max}`
        actions.push({
          name: kit.name,
          id: kit.id,
          info1: { text: chargesText },
          encodedValue: ['kit', kit.id].join(this.delimiter)
        })
      }
      await this.addActions(actions, { id: 'kits', type: 'system' })
    }

    async #buildUtility() {
      const actions = []
      actions.push({
        name: coreModule.api.Utils.i18n('AWEMMY.TAH.LongRest'),
        id: 'longRest',
        encodedValue: ['utility', 'longRest'].join(this.delimiter)
      })
      if (game.combat?.current?.tokenId === this.token?.id) {
        actions.push({
          name: coreModule.api.Utils.i18n('AWEMMY.TAH.EndTurn'),
          id: 'endTurn',
          encodedValue: ['utility', 'endTurn'].join(this.delimiter)
        })
      }
      await this.addActions(actions, { id: 'utility', type: 'system' })
    }
  }
})