export function sendPercentileTestToChat(actor, skill, target){
    let roll = new Roll('1D100', actor.data.data).roll();
    let total = roll.total;
    let isCritical = false;
    let isSuccess = false;
    let html = '';
    let label = `${game.i18n.localize("DG.Roll.Rolling")} <b>${skill}</b> ${game.i18n.localize("DG.Roll.Target")} ${target}`;
    let resultString = '';
    let styleOverride = '';

    isCritical = skillCheckResultIsCritical(total);

    if(total <= target){
      isSuccess = true;
    }

    if(isCritical){
      resultString = `${game.i18n.localize("DG.Roll.Critical")}　`;
    }

    if(isSuccess){
      resultString += `${game.i18n.localize("DG.Roll.Success")}`;

      if(isCritical){
        resultString = resultString.toUpperCase() + '!';
        styleOverride="color: green";
      }
    }
    else{
      resultString += `${game.i18n.localize("DG.Roll.Failure")}`;

      if(isCritical){
        resultString = resultString.toUpperCase() + '!';
        styleOverride="color: red";
      }
    }

    html = `<div class="dice-roll">`
    html += `     <div class="dice-result">`
    html += `     <div style="${styleOverride}" class="dice-formula">${resultString}</div>`
    html += `     <div class="dice-tooltip">`
    html += `          <section class="tooltip-part">`
    html += `               <div class="dice">`
    html += `                    <p class="part-formula">`
    html += `                         ${roll.formula}`
    html += `                         <span class="part-total">${roll.total}</span>`
    html += `                    </p>`
    html += `                    <ol class="dice-rolls">`
    html += `                         <li class="roll die ${roll.formula}">${roll.total}</li>`
    html += `                    </ol>`
    html += `               </div>`
    html += `          </section>`
    html += `     </div>`
    html += `     <h4 class="dice-total">${roll.total}</h4>`
    html += `</div>`

    let chatData = {
      speaker: ChatMessage.getSpeaker({actor: actor}),
      content: html,
      flavor: label,
      type: CHAT_MESSAGE_TYPES.ROLL,
      roll: roll,
      rollMode: game.settings.get("core", "rollMode")
      };

    // play the dice rolling sound, like a regular in-chat roll
	  AudioHelper.play({src: "sounds/dice.wav", volume: 0.8, autoplay: true, loop: false}, true);

    ChatMessage.create(chatData, {});
  }

  export function skillCheckResultIsCritical(rollResult){
    let isCritical = false;

    if(rollResult === 1 || rollResult === 100){
      // really good, or reeaaaally bad
      isCritical = true;
    }
    else if(rollResult % 11 === 0){
      // any matching dice are a crit, i.e. 11, 22, 33...99.
      isCritical = true;
    }

    return isCritical;
  }

  export function sendLethalityTestToChat(actor, weaponName, target){
    let roll = new Roll('1D100', actor.data.data).roll();
    let isCritical = false;
    let skillCheckTotal = roll.total;
    

    // page 57 of agent's handbook
    // For a failed lethality check, the damage on the tens die is a 10 for a roll of '0'.  E.g. '30' + '0' = 13 damage.
    // Lethality rolls do not fumble or critically succeed, but the attack roll can.
    // In this situation, the lethality threshold doubles (e.g. 20% would become 40%),
    // and if the lethality roll fails, the damage is doubled per normal.  However right now
    // the attack roll and damage roll are completely separate... Perhaps in the future, use a
    // button in the skill check roll to allow doubling this logic?

    // try to determine what the d100 result would be as if it was two d10's being rolled
    let damageDie1 = Math.floor(skillCheckTotal / 10);
    let damageDie2 = skillCheckTotal - (damageDie1 * 10);
    if(damageDie2 === 0){
      // if the result is evenly divisible by 10 (e.g. 30, 40, 50...) 
      // then the percentile die result was actually one lower than the calculation above would show.
      // For example, a '70' is actually a 60 + 10, so the damage die should be 6 + 10 = 16, not 7 + 0 = 7.
      damageDie1 -= 1;
      damageDie2 = 10;
    }

    let damageDie1Label = damageDie1.toString();
    let damageDie2Label = damageDie2.toString();

    if(damageDie1 === 0){
      // a roll of 00 on the tens part of the d100 counts as a ten if it becomes a damage die
      // Will leave the labeling as a '0' though, to be consistent with a regular d10 roll
      damageDie1 = 10;
    }

    if(damageDie2 === 10){
      // keep the labelling consistent, show a '0' for a ten
      damageDie2Label = '0';
    }

    let nonlethalDamage = damageDie1 + damageDie2;
    
    let isLethal = false;
    let html = '';
    let label = `${game.i18n.localize("DG.Roll.Rolling")} ${game.i18n.localize("DG.Roll.Lethality").toUpperCase()} ${game.i18n.localize("DG.Roll.For")} ${weaponName.toUpperCase()} ${game.i18n.localize("DG.Roll.Target")} ${target}`;
    let resultString = '';
    let styleOverride = '';

    if(skillCheckTotal <= target){
      isLethal = true;
      resultString = `${game.i18n.localize("DG.Roll.Lethal").toUpperCase()}`;
      styleOverride="color: red";
    }
    else{
      resultString = `${game.i18n.localize("DG.Roll.Failure")}`;
    }

    html = `<div class="dice-roll">`;
    html += `     <div class="dice-result">`;
    html += `     <div style="${styleOverride}" class="dice-formula">${resultString}</div>`;
    html += `     <div class="dice-tooltip">`;
    html += `          <section class="tooltip-part">`;
    html += `               <div class="dice">`;
    html += `                    <p class="part-formula">`;
    html += `                         d100 ${game.i18n.localize("DG.Roll.Or").toUpperCase()} d10 + d10`;
    html += `                         <span class="part-total">${roll.total}</span>`;
    html += `                    </p>`;
    html += `                    <ol class="dice-rolls">`;
    html += `                         <li class="roll die d10">${damageDie1Label}</li>`;
    html += `                         <li class="roll die d10">${damageDie2Label}</li>`;
    html += `                    </ol>`;
    html += `               </div>`;
    html += `          </section>`;
    html += `     </div>`;
    html += `     <h4 class="dice-total">${roll.total} (${nonlethalDamage} ${game.i18n.localize("DG.Roll.Damage")})</h4>`;
    html += `</div>`;

    let chatData = {
      speaker: ChatMessage.getSpeaker({actor: actor}),
      content: html,
      flavor: label,
      type: CHAT_MESSAGE_TYPES.ROLL,
      roll: roll,
      rollMode: game.settings.get("core", "rollMode")
      };

    // play the dice rolling sound, like a regular in-chat roll
	  AudioHelper.play({src: "sounds/dice.wav", volume: 0.8, autoplay: true, loop: false}, true);

    ChatMessage.create(chatData, {});
  }

  export function sendDamageRollToChat(actor, label, diceFormula){
    let roll = new Roll(diceFormula, actor.data.data);

    label = `${game.i18n.localize("DG.Roll.RollingDamageFor")} ${label.toUpperCase()}`;

    roll.roll().toMessage({
    speaker: ChatMessage.getSpeaker({ actor: actor }),
    flavor: label,
    type: CHAT_MESSAGE_TYPES.ROLL,
    roll: roll,
    rollMode: game.settings.get("core", "rollMode")
    });
  }

  export async function showModifyPercentileTestDialogue(actor, label, originalTarget, isLethalityTest){
    
    let template = "systems/deltagreen/templates/dialog/modify-percentile-roll.html";
    let backingData = {
      data:{
        label: label,
        originalTarget: originalTarget,
        targetModifier: 20
      },
    };
    
    let html = await renderTemplate(template, backingData);

    new Dialog({
      content: html,
      title: game.i18n.localize("DG.ModifySkillRollDialogue.Title"),
      default: "roll",
      buttons: {
        roll:{
          label: game.i18n.translations.DG.Roll.Roll,

          callback: html => { 
            try{
              let targetModifier = html.find("[name='targetModifier']").val();  // this is text as a heads up
            
              let newTarget = parseInt(originalTarget); // this should be an int, but technically the incoming value is text, so parse it just to be safe

              newTarget += parseInt(targetModifier);
              
              if(isLethalityTest){
                sendLethalityTestToChat(actor, label, newTarget);
              }
              else{
                sendPercentileTestToChat(actor, label, newTarget);
              }
            }
            catch(ex){
              console.log(ex);
            }
          }
        }
      }
      }
    ).render(true);
  }

  export async function showModifyDamageRollDialogue(actor, label, originalFormula){
    
    let template = "systems/deltagreen/templates/dialog/modify-damage-roll.html";
    let backingData = {
      data:{
        label: label,
        originalFormula: originalFormula,
        outerModifier: "2 * ",
        innerModifier: "+ 0" 
      },
    };
    
    let html = await renderTemplate(template, backingData);

    new Dialog({
      content: html,
      title: game.i18n.localize("DG.ModifySkillRollDialogue.Title"),
      default: "roll",
      buttons: {
        roll:{
          label: game.i18n.translations.DG.Roll.Roll,

          callback: html => { 
            try{
              let outerModifier = html.find("[name='outerModifier']").val();  // this is text as a heads up
              let innerModifier = html.find("[name='innerModifier']").val();  // this is text as a heads up
              let modifiedBaseRoll = html.find("[name='originalFormula']").val();  // this is text as a heads up
              
              if(innerModifier.replace(" ", "") === "+0"){
                innerModifier = "";
              }

              let newRoll = "";
              if(outerModifier.trim() != ""){
                newRoll += outerModifier + "(" + modifiedBaseRoll + innerModifier.trim() + ")";
              }
              else{
                newRoll += modifiedBaseRoll + innerModifier.trim();
              }
              
              sendDamageRollToChat(actor, label, newRoll);
            }
            catch(ex){
              console.log(ex);
            }
          }
        }
      }
      }
    ).render(true);
  }