var Formsy = require('./../src/main.js');

describe('Formsy', function () {

  describe('Setting up a form', function () {

    it('should render a form into the document', function () {
      var form = TestUtils.renderIntoDocument( <Formsy.Form></Formsy.Form>);
      expect(form.getDOMNode().tagName).toEqual('FORM');
    });

    it('should set a class name if passed', function () {
      var form = TestUtils.renderIntoDocument( <Formsy.Form className="foo"></Formsy.Form>);
      expect(form.getDOMNode().className).toEqual('foo');
    });

    it('should allow for null/undefined children', function (done) {
      var TestInput = React.createClass({
        mixins: [Formsy.Mixin],
        changeValue: function (event) {
          this.setValue(event.target.value);
        },
        render: function () {
          return <input value={this.getValue()} onChange={this.changeValue}/>
        }
      });

      var model = null;
      var TestForm = React.createClass({
        onSubmit: function (formModel) {
          model = formModel;
        },
        render: function () {
          return (
            <Formsy.Form onSubmit={ this.onSubmit }>
              <h1>Test</h1>
              { null }
              { undefined }
              <TestInput name='name' value={ 'foo' } />
            </Formsy.Form>
          );
        }
      });

      var form = TestUtils.renderIntoDocument(<TestForm/>);
      setTimeout(function () {
        TestUtils.Simulate.submit(form.getDOMNode());
        expect(model).toEqual({name: 'foo'});
        done();
      }, 10);
    });

    it('should allow for inputs being added dynamically', function (done) {

      var inputs = [];
      var forceUpdate = null;
      var model = null;
      var TestInput = React.createClass({
        mixins: [Formsy.Mixin],
        render: function () {
          return <div/>
        }
      });
      var TestForm = React.createClass({
        componentWillMount: function () {
          forceUpdate = this.forceUpdate.bind(this);
        },
        onSubmit: function (formModel) {
          model = formModel;
        },
        render: function () {
          return ( 
            <Formsy.Form onSubmit={this.onSubmit}> 
              {inputs}
            </Formsy.Form>);
        }
      });
      var form = TestUtils.renderIntoDocument( 
        <TestForm/> 
      );

      // Wait before adding the input
      setTimeout(function () {

        inputs.push(TestInput({
          name: 'test'
        }));

        forceUpdate(function () {

          // Wait for next event loop, as that does the form
          setTimeout(function () {
            TestUtils.Simulate.submit(form.getDOMNode());
            expect(model.test).toBeDefined();
            done();
          }, 0);

        });

      }, 10);

    });

    it('should allow dynamically added inputs to update the form-model', function (done) {

      var inputs = [];
      var forceUpdate = null;
      var model = null;
      var TestInput = React.createClass({
        mixins: [Formsy.Mixin],
        changeValue: function (event) {
          this.setValue(event.target.value);
        },
        render: function () {
          return <input value={this.getValue()} onChange={this.changeValue}/>
        }
      });
      var TestForm = React.createClass({
        componentWillMount: function () {
          forceUpdate = this.forceUpdate.bind(this);
        },
        onSubmit: function (formModel) {
          model = formModel;
        },
        render: function () {
          return ( 
            <Formsy.Form onSubmit={this.onSubmit}> 
              {inputs}
            </Formsy.Form>);
        }
      });
      var form = TestUtils.renderIntoDocument( 
        <TestForm/> 
      );

      // Wait before adding the input
      setTimeout(function () {

        inputs.push(TestInput({
          name: 'test'
        }));

        forceUpdate(function () {

          // Wait for next event loop, as that does the form
          setTimeout(function () {
            TestUtils.Simulate.change(TestUtils.findRenderedDOMComponentWithTag(form, 'INPUT'), {target: {value: 'foo'}});
            TestUtils.Simulate.submit(form.getDOMNode());
            expect(model.test).toBe('foo');
            done();
          }, 0);

        });

      }, 0);

    });

    it('should allow a dynamically updated input to update the form-model', function (done) {

      var forceUpdate = null;
      var model = null;
      var TestInput = React.createClass({
        mixins: [Formsy.Mixin],
        changeValue: function (event) {
          this.setValue(event.target.value);
        },
        render: function () {
          return <input value={this.getValue()} onChange={this.changeValue}/>
        }
      });

      var input;
      var TestForm = React.createClass({
        componentWillMount: function () {
          forceUpdate = this.forceUpdate.bind(this);
        },
        onSubmit: function (formModel) {
          model = formModel;
        },
        render: function () {
          input = <TestInput name='test' value={ this.props.value } />;

          return (
            <Formsy.Form onSubmit={this.onSubmit}>
              {input}
            </Formsy.Form>);
        }
      });
      var form = TestUtils.renderIntoDocument(<TestForm value='foo'/>);

      // Wait before changing the input
      setTimeout(function () {
        form.setProps({value: 'bar'});

        forceUpdate(function () {
          // Wait for next event loop, as that does the form
          setTimeout(function () {
            TestUtils.Simulate.submit(form.getDOMNode());
            expect(model.test).toBe('bar');
            done();
          }, 0);

        });

      }, 10);

    });

    describe('validations', function() {
      var CheckValid, onSubmit, OtherCheckValid;
      var isValid;

      var TestInput = React.createClass({
        mixins: [Formsy.Mixin],
        changeValue: function (event) {
          this.setValue(event.target.value);
        },
        render: function () {
          return <input value={ this.getValue() } onChange={ this.changeValue } />
        }
      });

      var TestForm = React.createClass({
        getDefaultProps: function() {
          return {
            inputs: [],
          };
        },
        render: function () {
          var builtInputs = [];
          var inputs = this.props.inputs;
          for (var i=0; i < inputs.length; i++) {
            var input = inputs[i];
            builtInputs.push(<TestInput { ...input } key={ input.name } />);
          }
          var _this = this;
          return <Formsy.Form
            onSubmit  = { function(arg1) { onSubmit(arg1); } }
            onValid   = { function() { isValid = true; } }
            onInvalid = { function() { isValid = false; } } >
            { builtInputs }
          </Formsy.Form>;
        }
      });

      beforeEach(function() {
        isValid = true;
        CheckValid = jasmine.createSpy('CheckValid');
        Formsy.addValidationRule('CheckValid', CheckValid);
        OtherCheckValid = jasmine.createSpy('CheckValid');
        Formsy.addValidationRule('OtherCheckValid', OtherCheckValid);
        onSubmit = jasmine.createSpy('onSubmit');
      });

      it('should run when the input changes', function() {
        var form = TestUtils.renderIntoDocument(<TestForm inputs={ [{name: 'one', validations: 'CheckValid', value: 'foo'}] }/>);
        var input = TestUtils.findRenderedDOMComponentWithTag(form, 'input');
        TestUtils.Simulate.change(input.getDOMNode(), {target: {value: 'bar'}});
        expect(CheckValid).toHaveBeenCalledWith('bar');
        expect(OtherCheckValid).not.toHaveBeenCalled();
      });

      it('should allow the validation to be changed', function() {
        var form = TestUtils.renderIntoDocument(<TestForm inputs={ [{name: 'one', validations: 'CheckValid', value: 'foo'}] }/>);
        form.setProps({inputs: [{name: 'one', validations: 'OtherCheckValid', value: 'foo'}] });
        var input = TestUtils.findRenderedDOMComponentWithTag(form, 'input');
        TestUtils.Simulate.change(input.getDOMNode(), {target: {value: 'bar'}});
        expect(OtherCheckValid).toHaveBeenCalledWith('bar');
      });

      it('should invalidate a form if dynamically inserted input is invalid', function(done) {
        var form = TestUtils.renderIntoDocument(<TestForm inputs={ [{name: 'one', validations: 'isEmail', value: 'foo@bar.com'}] }/>);
        expect(isValid).toEqual(true);
        form.setProps({inputs: [
          {name: 'one', validations: 'isEmail', value: 'foo@bar.com'},
          {name: 'two', validations: 'isEmail', value: 'foo@bar'},
        ]}, function() {
          setTimeout(function() {
            expect(isValid).toEqual(false);
            done();
          }, 0);
        });
      });

      it('should validate a form when removing an invalid input', function(done) {
        var form = TestUtils.renderIntoDocument(<TestForm inputs={ [
          {name: 'one', validations: 'isEmail', value: 'foo@bar.com'},
          {name: 'two', validations: 'isEmail', value: 'foo@bar'},
        ] } />);
        expect(isValid).toEqual(false);
        form.setProps({inputs: [{name: 'one', validations: 'isEmail', value: 'foo@bar.com'}]}, function() {
          setTimeout(function() {
            expect(isValid).toEqual(true);
            done();
          }, 0);
        });
      });

      it('runs multiple validations', function() {
        var form = TestUtils.renderIntoDocument(<TestForm inputs={ [{name: 'one', validations: 'CheckValid,OtherCheckValid', value: 'foo'}] }/>);
        var input = TestUtils.findRenderedDOMComponentWithTag(form, 'input');
        TestUtils.Simulate.change(input.getDOMNode(), {target: {value: 'bar'}});
        expect(CheckValid).toHaveBeenCalledWith('bar');
        expect(OtherCheckValid).toHaveBeenCalledWith('bar');
      });
    });

    it('should not trigger onChange when form is mounted', function () {
      var hasChanged = jasmine.createSpy('onChange');
      var TestForm = React.createClass({
        onChange: function () {
          hasChanged();
        },
        render: function () {
          return <Formsy.Form onChange={this.onChange}></Formsy.Form>;
        }
      });
      var form = TestUtils.renderIntoDocument(<TestForm/>);
      expect(hasChanged).not.toHaveBeenCalled();
    });

    it('should trigger onChange when form element is changed', function () {
      var hasChanged = jasmine.createSpy('onChange');
      var MyInput = React.createClass({
        mixins: [Formsy.Mixin],
        onChange: function (event) {
          this.setValue(event.target.value);
        },
        render: function () {
          return <input value={this.getValue()} onChange={this.onChange}/>
        }
      });
      var TestForm = React.createClass({
        onChange: function () {
          hasChanged();
        },
        render: function () {
          return (
            <Formsy.Form onChange={this.onChange}>
              <MyInput name="foo"/>
            </Formsy.Form>
          );
        }
      });
      var form = TestUtils.renderIntoDocument(<TestForm/>);
      TestUtils.Simulate.change(TestUtils.findRenderedDOMComponentWithTag(form, 'INPUT'), {target: {value: 'bar'}});
      expect(hasChanged).toHaveBeenCalled();
    });

    it('should trigger onChange when new input is added to form', function (done) {
      var hasChanged = jasmine.createSpy('onChange');
      var inputs = [];
      var forceUpdate = null;
      var TestInput = React.createClass({
        mixins: [Formsy.Mixin],
        changeValue: function (event) {
          this.setValue(event.target.value);
        },
        render: function () {
          return <input value={this.getValue()} onChange={this.changeValue}/>
        }
      });
      var TestForm = React.createClass({
        componentWillMount: function () {
          forceUpdate = this.forceUpdate.bind(this);
        },
        onChange: function () {
          hasChanged();
        },
        render: function () {
          return ( 
            <Formsy.Form onChange={this.onChange}> 
              {inputs}
            </Formsy.Form>);
        }
      });
      var form = TestUtils.renderIntoDocument( 
        <TestForm/> 
      );

      // Wait before adding the input
      inputs.push(TestInput({
        name: 'test'
      }));

      forceUpdate(function () {

        // Wait for next event loop, as that does the form
        setTimeout(function () {
          expect(hasChanged).toHaveBeenCalled();
          done();
        }, 0);

      });

    });

  });

  describe('Update a form', function () {

    it('should allow elements to check if the form is disabled', function (done) {

      var TestInput = React.createClass({
        mixins: [Formsy.Mixin],
        render: function () {
          return <input value={this.getValue()}/>
        }
      });
      var TestForm = React.createClass({
        getInitialState: function () {
          return {disabled: true};
        },
        enableForm: function () {
          this.setState({
            disabled: false
          });
        },
        render: function () {
          return ( 
            <Formsy.Form onChange={this.onChange} disabled={this.state.disabled}> 
              <TestInput name="foo"/>
            </Formsy.Form>);
        }
      });
      var form = TestUtils.renderIntoDocument( 
        <TestForm/> 
      );

      var input = TestUtils.findRenderedComponentWithType(form, TestInput);
      expect(input.isFormDisabled()).toBe(true);
      form.enableForm();
      setTimeout(function () {
        expect(input.isFormDisabled()).toBe(false);
        done();
      }, 0);

    });

    it('should be possible to pass error state of elements by changing an errors attribute', function (done) {

      var TestInput = React.createClass({
        mixins: [Formsy.Mixin],
        render: function () {
          return <input value={this.getValue()}/>;
        }
      });
      var TestForm = React.createClass({
        getInitialState: function () {
          return {
            validationErrors: {
              foo: 'bar'
            }
          };
        },
        onChange: function (values) {
          if (values.foo) {
            this.setState({
              validationErrors: {}
            });
          } else {
            this.setState({
              validationErrors: {foo: 'bar'}
            });
          }
        },
        render: function () {
          return ( 
            <Formsy.Form onChange={this.onChange} validationErrors={this.state.validationErrors}> 
              <TestInput name="foo"/>
            </Formsy.Form>);
        }
      });
      var form = TestUtils.renderIntoDocument( 
        <TestForm/> 
      );

      // Wait for update
      setTimeout(function () {
        var input = TestUtils.findRenderedComponentWithType(form, TestInput);
        expect(input.getErrorMessage()).toBe('bar');
        input.setValue('gotValue');

        // Wait for update
        setTimeout(function () {
          expect(input.getErrorMessage()).toBe(null);
          done();
        }, 0);
      }, 0);

    });


    it('should trigger an onValidSubmit when submitting a valid form', function () {

        var isCalled = false;
        var TestInput = React.createClass({
          mixins: [Formsy.Mixin],
          render: function () {
            return <input value={this.getValue()}/>;
          }
        });
        var TestForm = React.createClass({
          onValidSubmit: function () {
            isCalled = true;
          },
          render: function () {
            return ( 
              <Formsy.Form onValidSubmit={this.onValidSubmit}> 
                <TestInput name="foo" validations="isEmail" value="foo@bar.com"/>
              </Formsy.Form>);
          }
        });
        var form = TestUtils.renderIntoDocument( 
          <TestForm/> 
        );

        var TestForm = TestUtils.findRenderedComponentWithType(form, TestForm);
        TestUtils.Simulate.submit(TestForm.getDOMNode());  
        expect(isCalled).toBe(true);

    });

    it('should trigger an onInvalidSubmit when submitting an invalid form', function () {

        var isCalled = false;
        var TestInput = React.createClass({
          mixins: [Formsy.Mixin],
          render: function () {
            return <input value={this.getValue()}/>;
          }
        });
        var TestForm = React.createClass({
          onInvalidSubmit: function () {
            isCalled = true;
          },
          render: function () {
            return ( 
              <Formsy.Form onInvalidSubmit={this.onInvalidSubmit}> 
                <TestInput name="foo" validations="isEmail" value="foo@bar"/>
              </Formsy.Form>);
          }
        });
        var form = TestUtils.renderIntoDocument( 
          <TestForm/> 
        );

        var TestForm = TestUtils.findRenderedComponentWithType(form, TestForm);
        TestUtils.Simulate.submit(TestForm.getDOMNode());  
        expect(isCalled).toBe(true);

    });

  });

  describe("value === false", function() {
    var onSubmit;
    var TestInput = React.createClass({
      mixins: [Formsy.Mixin],
      getDefaultProps: function() {
        return {
          type: "text",
        };
      },
      changeValue: function() {
        this.setValue(e.target[this.props.type === "checkbox" ? "checked" : "value"]);
      },
      render: function () {
        return <input type={ this.props.type } value={ this.getValue() } onChange={ this.changeValue }/>
      }
    });

    var TestForm = React.createClass({
      render: function () {
        return (
          <Formsy.Form onSubmit={ function(arg1) { onSubmit(arg1); } }>
            <TestInput name="foo" value={ this.props.value } type="checkbox" />
            <button type="submit">Save</button>
          </Formsy.Form>
        );
      }
    });

    beforeEach(function() {
      onSubmit = jasmine.createSpy("onSubmit");
    });

    it("should call onSubmit correctly", function() {
      var form = TestUtils.renderIntoDocument(<TestForm value={ false }/>);
      TestUtils.Simulate.submit(form.getDOMNode());
      expect(onSubmit).toHaveBeenCalledWith({foo: false});
    });

    it("should allow dynamic changes to false", function() {
      var form = TestUtils.renderIntoDocument(<TestForm value={ true }/>);
      form.setProps({value: false});
      TestUtils.Simulate.submit(form.getDOMNode());
      expect(onSubmit).toHaveBeenCalledWith({foo: false});
    });
  });
});