/**
 * Extend the base Actor document by defining a custom roll data structure which is ideal for the Simple system.
 * @extends {Actor}
 */
export class VermineActor extends Actor {

  /** @override */
  prepareData() {
    // Prepare data for the actor. Calling the super version of this executes
    // the following, in order: data reset (to clear active effects),
    // prepareBaseData(), prepareEmbeddedDocuments() (including active effects),
    // prepareDerivedData().
    
    // Initialize wound data to prevent undefined errors with active effects
    if (!this.system.minorWound) this.system.minorWound = { value: 0, min: 0, max: 5, threshold: 1 };
    if (!this.system.majorWound) this.system.majorWound = { value: 0, min: 0, max: 4, threshold: 4 };
    if (!this.system.deadlyWound) this.system.deadlyWound = { value: 0, min: 0, max: 2, threshold: 8 };
    
    super.prepareData();

  }

  /** @override */
  prepareBaseData() {
    // Data modifications in this step occur before processing embedded
    // documents or derived data.

    if (this.type == 'character') {

    }
  }

  /**
   * @override
   * Augment the basic actor data with additional dynamic data. Typically,
   * you'll want to handle most of your calculated/derived data in this step.
   * Data calculated in this step should generally not exist in template.json
   * (such as ability modifiers rather than ability scores) and should be
   * available both inside and outside of character sheets (such as if an actor
   * is queried and has a roll executed directly from it).
   */
  prepareDerivedData() {
    const actorData = this;
    const systemData = actorData.system;
    const flags = actorData.flags.vermine2047 || {};

    // Make separate methods for each Actor type (character, npc, etc.) to keep
    // things organized.
    switch (this.type) {
      case "character":
        this._prepareCharacterData(actorData);
        break;
      case "npc":
        this._prepareNpcData(actorData);
        break;
      case "group":
        this._prepareGroupData(actorData);
        break;
      case "creature":
        this._prepareCreatureData(actorData);
        break;
    }

  }

  /**
   * Prepare Character type specific data
   */
  _prepareCharacterData(actorData) {
    if (actorData.type !== 'character') return;
    this._setAgeType();
    this._setCharacterEffort();
    this._setCharacterSelfControl();
    this._setCharacterThresholds();
    // Make modifications to data here. For example:
    const systemData = actorData.system;

    // Loop through ability scores, and add their modifiers to our sheet output.
    for (let [key, ability] of Object.entries(systemData.abilities)) {
      // Calculate the modifier using d20 rules.
      ability.mod = Math.floor((ability.value - 10) / 2);
    }
    this.prepareCombatStatus();

  }
  prepareCombatStatus() {
    // Ensure combatStatus exists (defined in base template)
    if (!this.system.combatStatus) return;
    
    //combat initiative reaction difficulty
    switch (parseInt(this.system.combatStatus.difficulty)) {
      case 5: this.system.combatStatus.label = "Offensif";
        break;
      case 7: this.system.combatStatus.label = "Actif";
        break;
      case 9: this.system.combatStatus.label = "Passif";
        break;
      default:
        this.system.combatStatus.label = "Passif";
        this.system.combatStatus.difficulty = "9";
        break;
    }
  }

  /**
   * Prepare NPC type specific data.
   */
  _prepareNpcData(actorData) {
    if (actorData.type !== 'npc') return;

    // Make modifications to data here. For example:
    const systemData = actorData.system;
    
    // Set wound thresholds based on threat level
    this._setNpcThresholds();
    
    // Set reserve max values based on role
    this._setNpcAttributes();
    
    this.prepareCombatStatus();
    
    // Prepare abilities with labels
    for (let [k, v] of Object.entries(systemData.abilities)) {
      v.label = game.i18n.localize(CONFIG.VERMINE.abilities[k]) ?? k;
    }
  }

  /**
   * Set NPC wound thresholds based on threat level
   */
  _setNpcThresholds() {
    const health = this.system.abilities?.health?.value || 1;
    const threatLevel = this.system.threat?.value || 1;
    const threatConfig = CONFIG.VERMINE.npcThreatLevels[threatLevel] || {};

    // Use threat-based wounds or fall back to health-based
    this.system.minorWound.threshold = threatConfig.minorWound || health;
    this.system.majorWound.threshold = threatConfig.majorWound || (health + 3);
    this.system.deadlyWound.threshold = threatConfig.deadlyWound || (health + 7 < 11 ? health + 7 : 10);

    // Set max wounds based on threat level
    this.system.minorWound.max = threatConfig.minorWound || 4;
    this.system.majorWound.max = threatConfig.majorWound || 3;
    this.system.deadlyWound.max = threatConfig.deadlyWound || 2;
  }

  /**
   * Set NPC attributes from role level
   */
  _setNpcAttributes() {
    const roleLevel = this.system.role?.value || 1;
    const roleConfig = CONFIG.VERMINE.npcRoleLevels[roleLevel] || {};

    // Set effort and self_control based on role
    this.system.attributes.effort.max = roleConfig.pools || 0;
    this.system.attributes.self_control.max = roleConfig.reaction_bonus || 0;
  }

  /**
   * Prepare Group type specific data.
   */
  _prepareGroupData(actorData) {
    if (actorData.type !== 'group') return;
    
    this.prepareCombatStatus();
    
    // Initialize group-specific data if not present
    this._initGroupData();
    
    // Calculate reserve max based on group level
    this._calculateGroupReserve();
    
    // Update morale level based on dice value
    this._updateGroupMorale();
  }

  /**
   * Initialize group data with defaults
   */
  _initGroupData() {
    if (this.type !== 'group') return;
    
    const system = this.system;
    
    // Initialize objectives if not present
    if (!system.objectives) {
      system.objectives = { major: [], minor: [] };
    }
    
    // Initialize groupAbilities if not present
    if (!system.groupAbilities) {
      system.groupAbilities = [];
    }
    
    // Initialize reserve if not present
    if (!system.reserve) {
      system.reserve = { value: 0, min: 0, max: 10 };
    }
  }

  /**
   * Calculate group reserve max based on level
   * Rules: Group level determines reserve size
   */
  _calculateGroupReserve() {
    if (this.type !== 'group') return;
    
    const level = this.system.level?.value || 1;
    // Reserve max is based on group level (simplified: level * 1D for now)
    // Can be customized based on specific rules
    this.system.reserve.max = Math.min(10, level * 2);
    
    // Ensure value doesn't exceed max
    if (this.system.reserve.value > this.system.reserve.max) {
      this.system.reserve.value = this.system.reserve.max;
    }
  }

  /**
   * Update group morale level based on dice value
   * Rules: 7D+ = Haut, 6-3D = Normal, 2D- = Bas, 0D = Crise
   */
  _updateGroupMorale() {
    if (this.type !== 'group') return;
    
    const moraleValue = this.system.morale?.value || 0;
    const moraleLevel = this.system.morale?.level;
    
    // If level is already explicitly set, keep it
    if (moraleLevel && moraleLevel !== "high") return;
    
    // Determine morale level based on dice value
    if (moraleValue >= 7) {
      this.system.morale.level = "high";
    } else if (moraleValue >= 3) {
      this.system.morale.level = "normal";
    } else if (moraleValue >= 1) {
      this.system.morale.level = "low";
    } else {
      this.system.morale.level = "crisis";
    }
  }

  /**
   * Prepare Creature type specific data.
   * Calculates computed values from pattern, size, role, and pack.
   */
  _prepareCreatureData(actorData) {
    if (actorData.type !== 'creature') return;
    
    this.prepareCombatStatus();
    
    // Calculate computed values from pattern, size, role, and pack
    this._calculateCreatureComputedValues();
    
    // Set wound thresholds from creature characteristics
    this._calculateCreatureWoundThresholds();
  }

  /**
   * Calculate creature computed values from pattern, size, role, and pack.
   * Rules: Attack = pattern + size + pack + role.reaction
   *        Damage = pattern.damage + size.vigor + pack.damage
   *        Reaction = role.reaction + role.reaction_bonus
   */
  _calculateCreatureComputedValues() {
    if (this.type !== 'creature') return;
    
    const patternLevel = this.system.pattern?.value || 1;
    const sizeLevel = this.system.size?.value || 1;
    const roleLevel = this.system.role?.value || 1;
    const packLevel = this.system.pack?.value || 0;
    
    // Get config values
    const patternConfig = CONFIG.VERMINE.creaturePatternLevels[patternLevel] || {};
    const sizeConfig = CONFIG.VERMINE.creatureSizeLevels[sizeLevel] || {};
    const roleConfig = CONFIG.VERMINE.creatureRoleLevels[roleLevel] || {};
    const packConfig = CONFIG.VERMINE.creaturePackLevels[packLevel] || {};
    
    // Calculate computed values
    this.system.computed = this.system.computed || {};
    
    // Attack: pattern + size + pack + role.reaction
    this.system.computed.attack = (patternConfig.attack || 0) + 
                                  (sizeConfig.attack || 0) + 
                                  (packConfig.attack || 0) + 
                                  (roleConfig.reaction || 0);
    
    // Damage: pattern + size.vigor + pack
    this.system.computed.damage = (patternConfig.damage || 0) + 
                                 (sizeConfig.vigor || 0) + 
                                 (packConfig.damage || 0);
    
    // Vigor: size.vigor + pack.damage
    this.system.computed.vigor = (sizeConfig.vigor || 0) + (packConfig.damage || 0);
    
    // Reaction: role.reaction + role.reaction_bonus
    this.system.computed.reaction = (roleConfig.reaction || 0) + (roleConfig.reaction_bonus || 0);
    this.system.computed.reactionBonus = roleConfig.reaction_bonus || 0;
    
    // Pools (reserves)
    this.system.computed.pools = roleConfig.pools || 0;
    
    // Gear and hindrance
    this.system.computed.gear = roleConfig.gear || 9;
    this.system.computed.gearHindrance = roleConfig.gear_hindrance || 0;
    
    // Protection
    this.system.computed.protection = roleConfig.protection || 1;
  }

  /**
   * Calculate creature wound thresholds from pattern, size, and pack.
   * Rules: Thresholds are sum of minorWound, majorWound, deadlyWound from all sources
   */
  _calculateCreatureWoundThresholds() {
    if (this.type !== 'creature') return;
    
    const patternLevel = this.system.pattern?.value || 1;
    const sizeLevel = this.system.size?.value || 1;
    const packLevel = this.system.pack?.value || 0;
    
    const patternConfig = CONFIG.VERMINE.creaturePatternLevels[patternLevel] || {};
    const sizeConfig = CONFIG.VERMINE.creatureSizeLevels[sizeLevel] || {};
    const packConfig = CONFIG.VERMINE.creaturePackLevels[packLevel] || {};
    
    // Calculate wound thresholds (sum of all sources)
    this.system.minorWound.threshold = (patternConfig.minorWound || 0) + 
                                     (sizeConfig.minorWound || 0) + 
                                     (packConfig.minorWound || 0);
    this.system.majorWound.threshold = (patternConfig.majorWound || 0) + 
                                     (sizeConfig.majorWound || 0) + 
                                     (packConfig.majorWound || 0);
    this.system.deadlyWound.threshold = (patternConfig.deadlyWound || 0) + 
                                       (sizeConfig.deadlyWound || 0) + 
                                       (packConfig.deadlyWound || 0);
    
    // Set max wounds
    this.system.minorWound.max = Math.min(5, this.system.minorWound.threshold + 2);
    this.system.majorWound.max = Math.min(4, this.system.majorWound.threshold + 1);
    this.system.deadlyWound.max = Math.min(2, this.system.deadlyWound.threshold);
  }

  /**
   * Override getRollData() that's supplied to rolls.
   */
  getRollData() {
    const data = super.getRollData();

    // Prepare character roll data.
    this._getCharacterRollData(data);
    this._getNpcRollData(data);

    return data;
  }

  /**
   * Prepare character roll data.
   */
  _getCharacterRollData(data) {
    if (this.type !== 'character') return;

    // Copy the ability scores to the top level, so that rolls can use
    // formulas like `@str.mod + 4`.
    if (data.abilities) {
      for (let [k, v] of Object.entries(data.abilities)) {
        data[k] = foundry.utils.deepClone(v);
      }
    }

    // Add level for easier access, or fall back to 0.
    if (data.attributes.level) {
      data.lvl = data.attributes.level.value ?? 0;
    }
  }

  /**
   * Prepare NPC roll data.
   */
  _getNpcRollData(data) {
    if (this.type !== 'npc') return;

    // Process additional NPC data here.
  }

  _setCharacterSelfControl() {
    this.system.attributes.self_control.max = 0 + Object.values(this.system.abilities).filter(i => i.category === "mental" || i.category === "social").map((i) => i.value).reduce((acc, curr) => acc + curr, 0) + this.modFromAgeSelfControl;
  }

  _setCharacterEffort() {
    this.system.attributes.effort.max = 0 + Object.values(this.system.abilities).filter(i => i.category === "physical" || i.category === "manual").map((i) => i.value).reduce((acc, curr) => acc + curr, 0) + this.modFromAgeEffort;
  }

  _setCharacterThresholds() {
    const health = this.system.abilities.health.value;

    this.system.minorWound.threshold = health;
    this.system.majorWound.threshold = health + 3;
    this.system.deadlyWound.threshold = (health + 7 < 11) ? health + 7 : 10;

    this.system.minorWound.max = 4 + this.modFromAgeWounds.l;
    this.system.majorWound.max = 3 + this.modFromAgeWounds.h;
    this.system.deadlyWound.max = 2 + this.modFromAgeWounds.d;
  }


  _setAgeType() {
    Object.keys(CONFIG.VERMINE.AgeTypes).forEach((type) => {
      if (this.system.identity.age >= parseInt(CONFIG.VERMINE.AgeTypes[type].beginning, 10)) {
        this.system.identity.ageType = type;
      }
    });
  }

  get ageType() {
    return this.system.identity.ageType;
  }

  get modFromAgeSelfControl() {
    return this.ageType == 1 ? -1 : 0;
  }

  get modFromAgeEffort() {
    if (this.ageType == 1) return -1;
    if (this.ageType == 3) return -2;
    return 0;
  }

  get modFromAgeWounds() {
    if (this.ageType == 1) return { l: 0, h: 0, d: -1 };
    if (this.ageType == 3) return { l: -1, h: -1, d: -1 };
    return { l: 0, h: 0, d: 0 };
  }

}