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

/**
 * Système de dés de Célestopol 1922.
 *
 * Le jet de base est : (valeur compétence)d6 comparé à un seuil de difficulté.
 * Le dé de lune ajoute un bonus selon la phase actuelle.
 * Destin et Spleen modifient le nombre de dés.
 */
export class CelestopolRoll extends Roll {
  static CHAT_TEMPLATE = "systems/fvtt-celestopol/templates/chat-message.hbs"

  get resultType()  { return this.options.resultType }
  get isSuccess()   { return this.resultType === "success" }
  get isFailure()   { return this.resultType === "failure" }
  get actorId()     { return this.options.actorId }
  get actorName()   { return this.options.actorName }
  get actorImage()  { return this.options.actorImage }
  get skillLabel()  { return this.options.skillLabel }
  get difficulty()  { return this.options.difficulty }
  get moonBonus()   { return this.options.moonBonus ?? 0 }

  /**
   * Ouvre le dialogue de configuration du jet via DialogV2 et exécute le jet.
   * @param {object} options
   * @returns {Promise<CelestopolRoll|null>}
   */
  static async prompt(options = {}) {
    const rollModes = foundry.utils.duplicate(CONFIG.Dice.rollModes)
    const fieldRollMode = new foundry.data.fields.StringField({
      choices: rollModes,
      blank: false,
      default: "publicroll",
    })

    const dialogContext = {
      actorName:        options.actorName,
      statLabel:        options.statLabel,
      skillLabel:       options.skillLabel,
      skillValue:       options.skillValue,
      woundMalus:       options.woundMalus ?? 0,
      nbDice:           Math.max(1, options.skillValue ?? 1),
      difficultyChoices:SYSTEM.DIFFICULTY_CHOICES,
      moonPhaseChoices: SYSTEM.MOON_DICE_PHASES,
      defaultDifficulty:options.difficulty ?? "normal",
      defaultMoonPhase: options.moonPhase ?? "none",
      rollModes,
      fieldRollMode,
    }

    const content = await foundry.applications.handlebars.renderTemplate(
      "systems/fvtt-celestopol/templates/roll-dialog.hbs",
      dialogContext
    )

    const title = `${game.i18n.localize("CELESTOPOL.Roll.title")} — ${game.i18n.localize(options.skillLabel ?? "")}`

    const rollContext = await foundry.applications.api.DialogV2.wait({
      window: { title },
      classes: ["fvtt-celestopol", "roll-dialog"],
      content,
      buttons: [
        {
          label: game.i18n.localize("CELESTOPOL.Roll.roll"),
          callback: (event, button) => {
            return Array.from(button.form.elements).reduce((obj, input) => {
              if (input.name) obj[input.name] = input.value
              return obj
            }, {})
          },
        },
      ],
      rejectClose: false,
    })

    if (!rollContext) return null

    const difficulty    = rollContext.difficulty ?? "normal"
    const diffConfig    = SYSTEM.DIFFICULTY_CHOICES[difficulty] ?? SYSTEM.DIFFICULTY_CHOICES.normal
    const moonPhase     = rollContext.moonPhase ?? "none"
    const moonConfig    = SYSTEM.MOON_DICE_PHASES[moonPhase] ?? SYSTEM.MOON_DICE_PHASES.none
    const modifier      = parseInt(rollContext.modifier ?? 0) || 0
    const woundMalus    = options.woundMalus ?? 0
    const skillValue    = Math.max(0, (options.skillValue ?? 0) + woundMalus)
    const nbDice        = Math.max(1, skillValue)
    const moonBonus     = moonConfig.bonus ?? 0
    const totalModifier = moonBonus + modifier

    const formula = totalModifier !== 0
      ? `${nbDice}d6 + ${totalModifier}`
      : `${nbDice}d6`

    const rollData = {
      ...options,
      difficulty,
      difficultyValue: diffConfig.value,
      moonPhase,
      moonBonus,
      modifier,
      formula,
      rollMode: rollContext.visibility ?? "publicroll",
    }

    const roll = new this(formula, {}, rollData)
    await roll.evaluate()
    roll.computeResult()
    await roll.toMessage({}, { rollMode: rollData.rollMode })

    // Mémoriser les préférences sur l'acteur
    const actor = game.actors.get(options.actorId)
    if (actor) {
      await actor.update({
        "system.prefs.moonPhase":  moonPhase,
        "system.prefs.difficulty": difficulty,
      })
    }

    return roll
  }

  /** Détermine succès/échec selon le total vs le seuil. */
  computeResult() {
    const threshold = SYSTEM.DIFFICULTY_CHOICES[this.options.difficulty]?.value ?? 0
    if (threshold === 0) {
      this.options.resultType = "unknown"
    } else if (this.total >= threshold) {
      this.options.resultType = "success"
    } else {
      this.options.resultType = "failure"
    }
  }

  /** @override */
  async render(chatOptions = {}) {
    const data = await this._getChatCardData(chatOptions.isPrivate)
    return foundry.applications.handlebars.renderTemplate(this.constructor.CHAT_TEMPLATE, data)
  }

  async _getChatCardData(isPrivate) {
    const statLabel   = this.options.statLabel
    const skillLabel  = this.options.skillLabel
    const resultType  = this.resultType
    const diceResults = this.dice[0]?.results?.map(r => r.result) ?? []

    return {
      cssClass:       [SYSTEM.id, "dice-roll"].join(" "),
      actorId:        this.actorId,
      actorName:      this.actorName,
      actorImg:       this.actorImage,
      statLabel:      statLabel ? game.i18n.localize(statLabel) : "",
      skillLabel:     skillLabel ? game.i18n.localize(skillLabel) : "",
      formula:        this.formula,
      total:          this.total,
      resultType,
      resultClass:    resultType === "success" ? "success" : resultType === "failure" ? "failure" : "",
      success:        this.isSuccess,
      failure:        this.isFailure,
      difficulty:     this.options.difficulty,
      difficultyLabel:game.i18n.localize(SYSTEM.DIFFICULTY_CHOICES[this.options.difficulty]?.label ?? ""),
      moonPhase:      this.options.moonPhase,
      moonPhaseLabel: game.i18n.localize(SYSTEM.MOON_DICE_PHASES[this.options.moonPhase]?.label ?? ""),
      moonBonus:      this.moonBonus,
      modifier:       this.options.modifier,
      isPrivate,
      tooltip:        isPrivate ? "" : await this.getTooltip(),
      diceResults,
    }
  }

  /** @override */
  async toMessage(messageData = {}, { rollMode, create = true } = {}) {
    return super.toMessage(
      {
        flavor: `<strong>${game.i18n.localize(this.skillLabel ?? "")}</strong>`,
        ...messageData,
      },
      { rollMode }
    )
  }
}