'use strict';
var commander = require("../src/cli/utils/commander").default;

var definitions = {
  "arg0": "PROGRAM_ARG_0",
  "arg1": {
    env: "PROGRAM_ARG_1",
    required: true
  },
  "arg2": {
    env: "PROGRAM_ARG_2",
    action: function(value) {
      var value = parseInt(value);
      if (!Number.isInteger(value)) {
        throw "arg2 is invalid";
      }
      return value;
    }
  },
  "arg3": {},
  "arg4": {
    default: "arg4Value"
  }
}

describe("commander additions", () => {
  afterEach((done) => {
    commander.options = [];
    delete commander.arg0;
    delete commander.arg1;
    delete commander.arg2;
    delete commander.arg3;
    delete commander.arg4;
    done();
  })

  it("should load properly definitions from args", (done) => {
    commander.loadDefinitions(definitions);
    commander.parse(["node","./CLI.spec.js","--arg0", "arg0Value", "--arg1", "arg1Value", "--arg2", "2", "--arg3", "some"]);
    expect(commander.arg0).toEqual("arg0Value");
    expect(commander.arg1).toEqual("arg1Value");
    expect(commander.arg2).toEqual(2);
    expect(commander.arg3).toEqual("some");
    expect(commander.arg4).toEqual("arg4Value");
    done();
  });

  it("should load properly definitions from env", (done) => {
    commander.loadDefinitions(definitions);
    commander.parse([], {
      "PROGRAM_ARG_0": "arg0ENVValue",
      "PROGRAM_ARG_1": "arg1ENVValue",
      "PROGRAM_ARG_2": "3",
    });
    expect(commander.arg0).toEqual("arg0ENVValue");
    expect(commander.arg1).toEqual("arg1ENVValue");
    expect(commander.arg2).toEqual(3);
    expect(commander.arg4).toEqual("arg4Value");
    done();
  });

  it("should load properly use args over env", (done) => {
    commander.loadDefinitions(definitions);
    commander.parse(["node","./CLI.spec.js","--arg0", "arg0Value", "--arg4", "anotherArg4"], {
      "PROGRAM_ARG_0": "arg0ENVValue",
      "PROGRAM_ARG_1": "arg1ENVValue",
      "PROGRAM_ARG_2": "4",
    });
    expect(commander.arg0).toEqual("arg0Value");
    expect(commander.arg1).toEqual("arg1ENVValue");
    expect(commander.arg2).toEqual(4);
    expect(commander.arg4).toEqual("anotherArg4");
    done();
  });

  it("should fail in action as port is invalid", (done) => {
    commander.loadDefinitions(definitions);
    expect(()=> {
      commander.parse(["node","./CLI.spec.js","--arg0", "arg0Value"], {
        "PROGRAM_ARG_0": "arg0ENVValue",
        "PROGRAM_ARG_1": "arg1ENVValue",
        "PROGRAM_ARG_2": "hello",
      });
    }).toThrow("arg2 is invalid");
    done();
  });

  it("should not override config.json", (done) => {
    commander.loadDefinitions(definitions);
    commander.parse(["node","./CLI.spec.js","--arg0", "arg0Value", "./spec/configs/CLIConfig.json"], {
      "PROGRAM_ARG_0": "arg0ENVValue",
      "PROGRAM_ARG_1": "arg1ENVValue",
    });
    let options = commander.getOptions();
    expect(options.arg2).toBe(8888);
    expect(options.arg3).toBe("hello"); //config value
    expect(options.arg4).toBe('/1');
    done();
  });

  it("should fail with invalid values in JSON", (done) => {
    commander.loadDefinitions(definitions);
    expect(() => {
      commander.parse(["node","./CLI.spec.js","--arg0", "arg0Value", "./spec/configs/CLIConfigFail.json"], {
        "PROGRAM_ARG_0": "arg0ENVValue",
        "PROGRAM_ARG_1": "arg1ENVValue",
      });
    }).toThrow("arg2 is invalid")
    done();
  });

  it("should fail when too many apps are set", (done) => {
    commander.loadDefinitions(definitions);
    expect(() => {
      commander.parse(["node","./CLI.spec.js","./spec/configs/CLIConfigFailTooManyApps.json"]);
    }).toThrow("Multiple apps are not supported")
    done();
  });

  it("should load config from apps", (done) => {
    commander.loadDefinitions(definitions);
    commander.parse(["node", "./CLI.spec.js", "./spec/configs/CLIConfigApps.json"]);
    let options = commander.getOptions();
    expect(options.arg1).toBe("my_app");
    expect(options.arg2).toBe(8888);
    expect(options.arg3).toBe("hello"); //config value
    expect(options.arg4).toBe('/1');
    done();
  });

  it("should fail when passing an invalid arguement", (done) => {
    commander.loadDefinitions(definitions);
    expect(() => {
      commander.parse(["node", "./CLI.spec.js", "./spec/configs/CLIConfigUnknownArg.json"]);
    }).toThrow('error: unknown option myArg')
    done();
  });
});