import { Player } from "@player";
import { CorpResearchName, CorpSmartSupplyOption } from "@nsdefs";

import { MaterialInfo } from "./MaterialInfo";
import { Corporation } from "./Corporation";
import { IndustryResearchTrees, IndustriesData } from "./data/IndustryData";
import { Division } from "./Division";
import * as corpConstants from "./data/Constants";
import { OfficeSpace } from "./OfficeSpace";
import { Material } from "./Material";
import { Product } from "./Product";
import { Warehouse } from "./Warehouse";
import { IndustryType } from "@enums";
import { ResearchMap } from "./ResearchMap";
import { isRelevantMaterial } from "./ui/Helpers";
import { CityName } from "@enums";
import { getRandomInt } from "../utils/helpers/getRandomInt";
import { getRecordValues } from "../Types/Record";
import { sellSharesFailureReason, buybackSharesFailureReason, issueNewSharesFailureReason } from "./helpers";

export function NewDivision(corporation: Corporation, industry: IndustryType, name: string): void {
  if (corporation.divisions.size >= corporation.maxDivisions)
    throw new Error(`Cannot expand into ${industry} industry, too many divisions!`);

  if (corporation.divisions.has(name)) throw new Error(`Division name ${name} is already in use!`);
  // "Overview" is forbidden as a division name, see CorporationRoot.tsx for why this would cause issues.
  if (name === "Overview") throw new Error(`"Overview" is a forbidden division name.`);

  const data = IndustriesData[industry];
  if (!data) throw new Error(`Invalid industry: '${industry}'`);
  const cost = data.startingCost;
  if (corporation.funds < cost) {
    throw new Error("Not enough money to create a new division in this industry");
  } else if (name === "") {
    throw new Error("New division must have a name!");
  } else {
    corporation.loseFunds(cost, "division");
    corporation.divisions.set(
      name,
      new Division({
        corp: corporation,
        name: name,
        type: industry,
      }),
    );
  }
}

export function removeDivision(corporation: Corporation, name: string): number {
  const division = corporation.divisions.get(name);
  if (!division) throw new Error("There is no division called " + name);
  const price = division.calculateRecoupableValue();
  corporation.divisions.delete(name);

  // We also need to remove any exports that were pointing to the old division
  for (const otherDivision of corporation.divisions.values()) {
    for (const warehouse of getRecordValues(otherDivision.warehouses)) {
      for (const material of getRecordValues(warehouse.materials)) {
        // Work backwards through exports array so splicing doesn't affect the loop
        for (let i = material.exports.length - 1; i >= 0; i--) {
          if (material.exports[i].division === name) material.exports.splice(i, 1);
        }
      }
    }
  }
  corporation.gainFunds(price, "division");
  return price;
}

export function purchaseOffice(corporation: Corporation, division: Division, city: CityName): void {
  if (corporation.funds < corpConstants.officeInitialCost) {
    throw new Error("You don't have enough company funds to open a new office!");
  }
  if (division.offices[city]) {
    throw new Error(`You have already expanded into ${city} for ${division.name}`);
  }
  corporation.loseFunds(corpConstants.officeInitialCost, "division");
  division.offices[city] = new OfficeSpace({
    city: city,
    size: corpConstants.officeInitialSize,
  });
}

export function IssueDividends(corporation: Corporation, rate: number): void {
  if (isNaN(rate) || rate < 0 || rate > corpConstants.dividendMaxRate) {
    throw new Error(`Invalid value. Must be an number between 0 and ${corpConstants.dividendMaxRate}`);
  }

  corporation.dividendRate = rate;
}

export function GoPublic(corporation: Corporation, numShares: number): void {
  const ceoOwnership = (corporation.numShares - numShares) / corporation.totalShares;
  const initialSharePrice = corporation.getTargetSharePrice(ceoOwnership);

  if (isNaN(numShares) || numShares < 0) {
    throw new Error("Invalid value for number of issued shares");
  }
  if (numShares > corporation.numShares) {
    throw new Error("You don't have that many shares to issue!");
  }
  corporation.public = true;
  corporation.sharePrice = initialSharePrice;
  corporation.issuedShares += numShares;
  corporation.numShares -= numShares;
  corporation.gainFunds(numShares * initialSharePrice, "public equity");
}

export function IssueNewShares(
  corporation: Corporation,
  amount: number,
): [profit: number, amount: number, privateShares: number] {
  const failureReason = issueNewSharesFailureReason(corporation, amount);
  if (failureReason) throw new Error(failureReason);

  const ceoOwnership = corporation.numShares / (corporation.totalShares + amount);
  const newSharePrice = corporation.getTargetSharePrice(ceoOwnership);

  const profit = (amount * (corporation.sharePrice + newSharePrice)) / 2;

  const cooldownMultiplier = corporation.totalShares / corpConstants.initialShares;
  corporation.issueNewSharesCooldown = corpConstants.issueNewSharesCooldown * cooldownMultiplier;

  const privateOwnedRatio = corporation.investorShares / corporation.totalShares;
  const maxPrivateShares = Math.round((amount / 2) * privateOwnedRatio);
  const privateShares = Math.round(getRandomInt(0, maxPrivateShares) / 10e6) * 10e6;

  corporation.issuedShares += amount - privateShares;
  corporation.investorShares += privateShares;
  corporation.totalShares += amount;
  corporation.gainFunds(profit, "public equity");
  // Set sharePrice directly because all formulas will be based on stale cycleValuation data
  corporation.sharePrice = newSharePrice;

  return [profit, amount, privateShares];
}

export function AcceptInvestmentOffer(corporation: Corporation): void {
  if (
    corporation.fundingRound >= corpConstants.fundingRoundShares.length ||
    corporation.fundingRound >= corpConstants.fundingRoundMultiplier.length ||
    corporation.public
  ) {
    throw new Error("No more investment offers are available.");
  }
  const val = corporation.valuation;
  const percShares = corpConstants.fundingRoundShares[corporation.fundingRound];
  const roundMultiplier = corpConstants.fundingRoundMultiplier[corporation.fundingRound];
  const funding = val * percShares * roundMultiplier;
  const investShares = Math.floor(corpConstants.initialShares * percShares);
  corporation.fundingRound++;
  corporation.gainFunds(funding, "private equity");

  corporation.numShares -= investShares;
  corporation.investorShares += investShares;
}

export function SellMaterial(material: Material, amount: string, price: string): void {
  if (price === "") price = "0";
  if (amount === "") amount = "0";
  let cost = price.replace(/\s+/g, "");
  cost = cost.replace(/[^-()\d/*+.MPe]/g, ""); //Sanitize cost
  let temp = cost.replace(/MP/, "1.234e5");
  try {
    if (temp.includes("MP")) throw "Only one reference to MP is allowed in sell price.";
    temp = eval(temp);
  } catch (e) {
    throw new Error("Invalid value or expression for sell price field: " + e);
  }

  if (temp == null || isNaN(parseFloat(temp))) {
    throw new Error("Invalid value or expression for sell price field");
  }

  if (cost.includes("MP")) {
    material.desiredSellPrice = cost; //Dynamically evaluated
  } else {
    material.desiredSellPrice = temp;
  }

  //Parse quantity
  amount = amount.toUpperCase();
  if (amount.includes("MAX") || amount.includes("PROD") || amount.includes("INV")) {
    let q = amount.replace(/\s+/g, "");
    q = q.replace(/[^-()\d/*+.MAXPRODINV]/g, "");
    let tempQty = q.replace(/MAX/g, material.maxSellPerCycle.toString());
    tempQty = tempQty.replace(/PROD/g, material.productionAmount.toString());
    tempQty = tempQty.replace(/INV/g, material.productionAmount.toString());
    try {
      tempQty = eval(tempQty);
    } catch (e) {
      throw new Error("Invalid value or expression for sell quantity field: " + e);
    }

    if (tempQty == null || isNaN(parseFloat(tempQty))) {
      throw new Error("Invalid value or expression for sell quantity field");
    }
    material.desiredSellAmount = q; //Use sanitized input
  } else if (isNaN(parseFloat(amount)) || parseFloat(amount) < 0) {
    throw new Error("Invalid value for sell quantity field! Must be numeric or 'PROD' or 'MAX'");
  } else {
    let q = parseFloat(amount);
    if (isNaN(q)) {
      q = 0;
    }
    material.desiredSellAmount = q;
  }
}

export function SellProduct(product: Product, city: CityName, amt: string, price: string, all: boolean): void {
  //Parse price
  // initliaze newPrice with oldPrice as default
  let newPrice = product.cityData[city].desiredSellPrice;
  if (price.includes("MP")) {
    //Dynamically evaluated quantity. First test to make sure its valid
    //Sanitize input, then replace dynamic variables with arbitrary numbers
    price = price.replace(/\s+/g, "");
    price = price.replace(/[^-()\d/*+.MPe]/g, "");
    let temp = price.replace(/MP/, "1.234e5");
    try {
      if (temp.includes("MP")) throw "Only one reference to MP is allowed in sell price.";
      temp = eval(temp);
    } catch (e) {
      throw new Error("Invalid value or expression for sell price field: " + e);
    }
    if (temp == null || isNaN(parseFloat(temp))) {
      throw new Error("Invalid value or expression for sell price field.");
    }
    newPrice = price; //Use sanitized price
  } else {
    const cost = parseFloat(price);
    if (isNaN(cost)) {
      throw new Error("Invalid value for sell price field");
    }
    newPrice = cost;
  }

  // Parse quantity
  amt = amt.toUpperCase();
  //initialize newAmount with old as default
  let newAmount = product.cityData[city].desiredSellAmount;
  if (amt.includes("MAX") || amt.includes("PROD") || amt.includes("INV")) {
    //Dynamically evaluated quantity. First test to make sure its valid
    let qty = amt.replace(/\s+/g, "");
    qty = qty.replace(/[^-()\d/*+.MAXPRODINV]/g, "");
    let temp = qty.replace(/MAX/g, product.maxSellAmount.toString());
    temp = temp.replace(/PROD/g, product.cityData[city].productionAmount.toString());
    temp = temp.replace(/INV/g, product.cityData[city].stored.toString());
    try {
      temp = eval(temp);
    } catch (e) {
      throw new Error("Invalid value or expression for sell quantity field: " + e);
    }

    if (temp == null || isNaN(parseFloat(temp))) {
      throw new Error("Invalid value or expression for sell quantity field");
    }
    newAmount = qty; //Use sanitized input
  } else if (isNaN(parseFloat(amt)) || parseFloat(amt) < 0) {
    throw new Error("Invalid value for sell quantity field! Must be numeric or 'PROD' or 'MAX'");
  } else {
    let qty = parseFloat(amt);
    if (isNaN(qty)) {
      qty = 0;
    }
    newAmount = qty;
  }
  //apply new price and amount to all or just current
  if (all) {
    for (const cityName of Object.values(CityName)) {
      product.cityData[cityName].desiredSellAmount = newAmount;
      product.cityData[cityName].desiredSellPrice = newPrice;
    }
  } else {
    product.cityData[city].desiredSellAmount = newAmount;
    product.cityData[city].desiredSellPrice = newPrice;
  }
}

export function SetSmartSupply(warehouse: Warehouse, smartSupply: boolean): void {
  warehouse.smartSupplyEnabled = smartSupply;
}

export function SetSmartSupplyOption(warehouse: Warehouse, material: Material, useOption: CorpSmartSupplyOption): void {
  warehouse.smartSupplyOptions[material.name] = useOption;
}

export function BuyMaterial(division: Division, material: Material, amt: number): void {
  if (!isRelevantMaterial(material.name, division)) {
    throw new Error(`${material.name} is not a relevant material for industry ${division.type}`);
  }
  if (isNaN(amt) || amt < 0) {
    throw new Error(`Invalid amount '${amt}' to buy material '${material.name}'`);
  }
  material.buyAmount = amt;
}

export function BulkPurchase(
  corp: Corporation,
  division: Division,
  warehouse: Warehouse,
  material: Material,
  amt: number,
): void {
  if (!isRelevantMaterial(material.name, division)) {
    throw new Error(`${material.name} is not a relevant material for industry ${division.type}`);
  }
  const matSize = MaterialInfo[material.name].size;
  const maxAmount = (warehouse.size - warehouse.sizeUsed) / matSize;
  if (isNaN(amt) || amt < 0) {
    throw new Error(`Invalid input amount`);
  }
  if (amt > maxAmount) {
    throw new Error(`You do not have enough warehouse size to fit this purchase`);
  }
  const cost = amt * material.marketPrice;
  if (corp.funds >= cost) {
    corp.loseFunds(cost, "materials");
    material.stored += amt;
    warehouse.sizeUsed = warehouse.sizeUsed + amt * matSize;
  } else {
    throw new Error(`You cannot afford this purchase.`);
  }
}

export function SellShares(corporation: Corporation, numShares: number): number {
  const failureReason = sellSharesFailureReason(corporation, numShares);
  if (failureReason) throw new Error(failureReason);

  const [profit, newSharePrice, newSharesUntilUpdate] = corporation.calculateShareSale(numShares);

  corporation.numShares -= numShares;
  corporation.issuedShares += numShares;
  corporation.sharePrice = newSharePrice;
  corporation.shareSalesUntilPriceUpdate = newSharesUntilUpdate;
  corporation.shareSaleCooldown = corpConstants.sellSharesCooldown;
  Player.gainMoney(profit, "corporation");
  return profit;
}

export function BuyBackShares(corporation: Corporation, numShares: number): boolean {
  const failureReason = buybackSharesFailureReason(corporation, numShares);
  if (failureReason) throw new Error(failureReason);

  const [cost, newSharePrice, newSharesUntilUpdate] = corporation.calculateShareBuyback(numShares);

  corporation.numShares += numShares;
  corporation.issuedShares -= numShares;
  corporation.sharePrice = newSharePrice;
  corporation.shareSalesUntilPriceUpdate = newSharesUntilUpdate;
  Player.loseMoney(cost, "corporation");
  return true;
}

export function UpgradeOfficeSize(corp: Corporation, office: OfficeSpace, size: number): void {
  const initialPriceMult = Math.round(office.size / corpConstants.officeInitialSize);
  const costMultiplier = 1.09;
  // Calculate cost to upgrade size by 15 employees
  let mult = 0;
  for (let i = 0; i < size / corpConstants.officeInitialSize; ++i) {
    mult += Math.pow(costMultiplier, initialPriceMult + i);
  }
  const cost = corpConstants.officeInitialCost * mult;
  if (corp.funds < cost) return;
  office.size += size;
  corp.loseFunds(cost, "office");
}

export function BuyTea(corp: Corporation, office: OfficeSpace): boolean {
  const cost = office.getTeaCost();
  if (corp.funds < cost || !office.setTea()) return false;
  corp.loseFunds(cost, "tea");
  return true;
}

export function ThrowParty(corp: Corporation, office: OfficeSpace, costPerEmployee: number): number {
  const mult = 1 + costPerEmployee / 10e6;
  const cost = costPerEmployee * office.numEmployees;
  if (corp.funds < cost) {
    return 0;
  }

  if (!office.setParty(mult)) {
    return 0;
  }
  corp.loseFunds(cost, "parties");

  return mult;
}

export function purchaseWarehouse(corp: Corporation, division: Division, city: CityName): void {
  if (corp.funds < corpConstants.warehouseInitialCost) return;
  if (division.warehouses[city]) return;
  corp.loseFunds(corpConstants.warehouseInitialCost, "division");
  division.warehouses[city] = new Warehouse({
    division: division,
    loc: city,
    size: corpConstants.warehouseInitialSize,
  });
}

export function UpgradeWarehouseCost(warehouse: Warehouse, amt: number): number {
  return Array.from(Array(amt).keys()).reduce(
    (acc, index) => acc + corpConstants.warehouseSizeUpgradeCostBase * Math.pow(1.07, warehouse.level + 1 + index),
    0,
  );
}

export function UpgradeWarehouse(corp: Corporation, division: Division, warehouse: Warehouse, amt = 1): void {
  const sizeUpgradeCost = UpgradeWarehouseCost(warehouse, amt);
  if (corp.funds < sizeUpgradeCost) return;
  warehouse.level += amt;
  warehouse.updateSize(corp, division);
  corp.loseFunds(sizeUpgradeCost, "warehouse");
}

export function HireAdVert(corp: Corporation, division: Division): void {
  const cost = division.getAdVertCost();
  if (corp.funds < cost) return;
  corp.loseFunds(cost, "advert");
  division.applyAdVert(corp);
}

export function MakeProduct(
  corp: Corporation,
  division: Division,
  city: CityName,
  productName: string,
  designInvest: number,
  marketingInvest: number,
): void {
  // For invalid investment inputs, just use 0
  if (isNaN(designInvest) || designInvest < 0) designInvest = 0;
  if (isNaN(marketingInvest) || marketingInvest < 0) marketingInvest = 0;

  if (!division.offices[city]) {
    throw new Error(`Cannot develop a product in a city without an office!`);
  }
  if (productName == null || productName === "") {
    throw new Error("You must specify a name for your product!");
  }
  if (!division.makesProducts) {
    throw new Error("You cannot create products for this industry!");
  }
  if (corp.funds < designInvest + marketingInvest) {
    throw new Error("You don't have enough company funds to make this large of an investment");
  }
  if (division.products.size >= division.maxProducts) {
    throw new Error(`You are already at the max products (${division.maxProducts}) for division: ${division.name}!`);
  }

  const product = new Product({
    name: productName.replace(/[<>]/g, "").trim(), //Sanitize for HTMl elements?
    createCity: city,
    designInvestment: designInvest,
    advertisingInvestment: marketingInvest,
  });
  if (division.products.has(product.name)) {
    throw new Error(`You already have a product with this name!`);
  }

  corp.loseFunds(designInvest + marketingInvest, "product development");
  division.products.set(product.name, product);
}

export function Research(researchingDivision: Division, researchName: CorpResearchName): void {
  const corp = Player.corporation;
  if (!corp) return;
  const researchTree = IndustryResearchTrees[researchingDivision.type];
  if (researchTree === undefined) throw new Error(`No research tree for industry '${researchingDivision.type}'`);
  const research = ResearchMap[researchName];
  const researchNode = researchTree.findNode(researchName);
  const researchPreReq = researchNode?.parent?.researchName;
  //Check to see if the research request has any pre-reqs that need to be researched first.
  if (researchPreReq) {
    if (!researchingDivision.researched?.has(researchPreReq)) {
      throw new Error(
        `Division ${researchingDivision.name} requires ${researchPreReq} before researching ${research.name}`,
      );
    }
  }
  if (researchingDivision.researched.has(researchName)) return;
  if (researchingDivision.researchPoints < research.cost) {
    throw new Error(`You do not have enough Scientific Research for ${research.name}`);
  }
  researchingDivision.researchPoints -= research.cost;

  // Get the Node from the Research Tree and set its 'researched' property
  researchTree.research(researchName);
  // All divisions of the same type as the researching division get the new research.
  for (const division of corp.divisions.values()) {
    if (division.type !== researchingDivision.type) continue;
    division.researched.add(researchName);
    // Handle researches that need to have their effects manually applied here.
    // Warehouse size needs to be updated here because it is not recalculated during normal processing.
    if (researchName == "Drones - Transport") {
      for (const warehouse of getRecordValues(division.warehouses)) {
        warehouse.updateSize(corp, division);
      }
    }
  }
}

/** Set a new export for a material. Throw on any invalid input. */
export function ExportMaterial(
  targetDivision: Division,
  targetCity: CityName,
  material: Material,
  amount: string,
): void {
  if (!isRelevantMaterial(material.name, targetDivision)) {
    throw new Error(`You cannot export material: ${material.name} to division: ${targetDivision.name}!`);
  }
  if (!targetDivision.warehouses[targetCity]) {
    throw new Error(`Cannot export to ${targetCity} in division ${targetDivision.name} because there is no warehouse.`);
  }
  if (material === targetDivision.warehouses[targetCity]?.materials[material.name]) {
    throw new Error(`Source and target division/city cannot be the same.`);
  }
  for (const existingExport of material.exports) {
    if (existingExport.division === targetDivision.name && existingExport.city === targetCity) {
      throw new Error(`Tried to initialize an export to a duplicate warehouse.
Target warehouse (division / city): ${existingExport.division} / ${existingExport.city}
Existing export amount: ${existingExport.amount}
Attempted export amount: ${amount}`);
    }
  }

  // Perform sanitization and tests
  let sanitizedAmt = amount.replace(/\s+/g, "").toUpperCase();
  sanitizedAmt = sanitizedAmt.replace(/[^-()\d/*+.MAXEPRODINV]/g, "");
  for (const testReplacement of ["(1.23)", "(-1.23)"]) {
    const replaced = sanitizedAmt.replace(/(MAX|IPROD|EPROD|IINV|EINV)/g, testReplacement);
    let evaluated, error;
    try {
      evaluated = eval(replaced);
    } catch (e) {
      error = e;
    }
    if (!error && isNaN(evaluated)) error = "evaluated value is NaN";
    if (error) {
      throw new Error(`Error while trying to set the exported amount of ${material.name}.
Error occurred while testing keyword replacement with ${testReplacement}.
Your input: ${amount}
Sanitized input: ${sanitizedAmt}
Input after replacement: ${replaced}
Evaluated value: ${evaluated}
Error encountered: ${error}`);
    }
  }

  const exportObj = { division: targetDivision.name, city: targetCity, amount: sanitizedAmt };
  material.exports.push(exportObj);
}

export function CancelExportMaterial(divisionName: string, cityName: CityName, material: Material): void {
  const index = material.exports.findIndex((exp) => exp.division === divisionName && exp.city === cityName);
  if (index === -1) return;
  material.exports.splice(index, 1);
}

export function LimitProductProduction(product: Product, cityName: CityName, quantity: number): void {
  if (quantity < 0 || isNaN(quantity)) {
    product.cityData[cityName].productionLimit = null;
  } else {
    product.cityData[cityName].productionLimit = quantity;
  }
}

export function LimitMaterialProduction(material: Material, quantity: number): void {
  if (quantity < 0 || isNaN(quantity)) {
    material.productionLimit = null;
  } else {
    material.productionLimit = quantity;
  }
}

export function SetMaterialMarketTA1(material: Material, on: boolean): void {
  material.marketTa1 = on;
}

export function SetMaterialMarketTA2(material: Material, on: boolean): void {
  material.marketTa2 = on;
}

export function SetProductMarketTA1(product: Product, on: boolean): void {
  product.marketTa1 = on;
}

export function SetProductMarketTA2(product: Product, on: boolean): void {
  product.marketTa2 = on;
}