import { codingContractTypesMetadata, DescriptionFunc, GeneratorFunc, SolverFunc } from "./data/codingcontracttypes";

import { IMap } from "./types";

import { Generic_fromJSON, Generic_toJSON, IReviverValue, Reviver } from "./utils/JSONReviver";
import { CodingContractEvent } from "./ui/React/CodingContractModal";

/* tslint:disable:no-magic-numbers completed-docs max-classes-per-file no-console */

/* Represents different types of problems that a Coding Contract can have */
class CodingContractType {
  /**
   * Function that generates a description of the problem
   */
  desc: DescriptionFunc;

  /**
   * Number that generally represents the problem's difficulty. Bigger numbers = harder
   */
  difficulty: number;

  /**
   * A function that randomly generates a valid 'data' for the problem
   */
  generate: GeneratorFunc;

  /**
   * Name of the type of problem
   */
  name: string;

  /**
   * The maximum number of tries the player gets on this kind of problem before it self-destructs
   */
  numTries: number;

  /**
   * Stores a function that checks if the provided answer is correct
   */
  solver: SolverFunc;

  constructor(
    name: string,
    desc: DescriptionFunc,
    gen: GeneratorFunc,
    solver: SolverFunc,
    diff: number,
    numTries: number,
  ) {
    this.name = name;
    this.desc = desc;
    this.generate = gen;
    this.solver = solver;
    this.difficulty = diff;
    this.numTries = numTries;
  }
}

/* Contract Types */
// tslint:disable-next-line
export const CodingContractTypes: IMap<CodingContractType> = {};

for (const md of codingContractTypesMetadata) {
  // tslint:disable-next-line
  CodingContractTypes[md.name] = new CodingContractType(
    md.name,
    md.desc,
    md.gen,
    md.solver,
    md.difficulty,
    md.numTries,
  );
}

/**
 * Enum representing the different types of rewards a Coding Contract can give
 */
export enum CodingContractRewardType {
  FactionReputation,
  FactionReputationAll,
  CompanyReputation,
  Money, // This must always be the last reward type
}

/**
 * Enum representing the result when trying to solve the Contract
 */
export enum CodingContractResult {
  Success,
  Failure,
  Cancelled,
}

/**
 * A class that represents the type of reward a contract gives
 */
export interface ICodingContractReward {
  /* Name of Company/Faction name for reward, if applicable */
  name?: string;
  type: CodingContractRewardType;
}

/**
 * A Coding Contract is a file that poses a programming-related problem to the Player.
 * The player receives a reward if the problem is solved correctly
 */
export class CodingContract {
  /* Relevant data for the contract's problem */
  data: unknown;

  /* Contract's filename */
  fn: string;

  /* Describes the reward given if this Contract is solved. The reward is actually
       processed outside of this file */
  reward: ICodingContractReward | null;

  /* Number of times the Contract has been attempted */
  tries = 0;

  /* String representing the contract's type. Must match type in ContractTypes */
  type: string;

  constructor(fn = "", type = "Find Largest Prime Factor", reward: ICodingContractReward | null = null) {
    this.fn = fn;
    if (!this.fn.endsWith(".cct")) {
      this.fn += ".cct";
    }

    // tslint:disable-next-line
    if (CodingContractTypes[type] == null) {
      throw new Error(`Error: invalid contract type: ${type} please contact developer`);
    }

    this.type = type;
    this.data = CodingContractTypes[type].generate();
    this.reward = reward;
  }

  getData(): unknown {
    return this.data;
  }

  getDescription(): string {
    return CodingContractTypes[this.type].desc(this.data);
  }

  getDifficulty(): number {
    return CodingContractTypes[this.type].difficulty;
  }

  getMaxNumTries(): number {
    return CodingContractTypes[this.type].numTries;
  }

  getType(): string {
    return CodingContractTypes[this.type].name;
  }

  isSolution(solution: string): boolean {
    return CodingContractTypes[this.type].solver(this.data, solution);
  }

  /**
   * Creates a popup to prompt the player to solve the problem
   */
  async prompt(): Promise<CodingContractResult> {
    return new Promise<CodingContractResult>((resolve) => {
      const props = {
        c: this,
        onClose: () => {
          resolve(CodingContractResult.Cancelled);
        },
        onAttempt: (val: string) => {
          if (this.isSolution(val)) {
            resolve(CodingContractResult.Success);
          } else {
            resolve(CodingContractResult.Failure);
          }
        },
      };
      CodingContractEvent.emit(props);
    });
  }

  /**
   * Serialize the current file to a JSON save state.
   */
  toJSON(): IReviverValue {
    return Generic_toJSON("CodingContract", this);
  }

  /**
   * Initiatizes a CodingContract from a JSON save state.
   */
  static fromJSON(value: IReviverValue): CodingContract {
    return Generic_fromJSON(CodingContract, value.data);
  }
}

Reviver.constructors.CodingContract = CodingContract;