/*!
 * Copyright © 2016-2018 European Support Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
import React from 'react';
import PropTypes from 'prop-types';

import i18n from 'nfvo-utils/i18n/i18n.js';
import Validator from 'nfvo-utils/Validator.js';

import Input from 'nfvo-components/input/validation/Input.jsx';
import InputOptions from 'nfvo-components/input/validation/InputOptions.jsx';
import Form from 'nfvo-components/input/validation/Form.jsx';
import Button from 'sdc-ui/lib/react/Button.js';
import GridSection from 'nfvo-components/grid/GridSection.jsx';
import GridItem from 'nfvo-components/grid/GridItem.jsx';
import {
    optionsInputValues as EntitlementPoolsOptionsInputValues,
    SP_ENTITLEMENT_POOL_FORM,
    tabIds
} from './EntitlementPoolsConstants.js';
import { optionsInputValues as LicenseModelOptionsInputValues } from '../LicenseModelConstants.js';
import {
    validateStartDate,
    thresholdValueValidation
} from '../LicenseModelValidations.js';
import { DATE_FORMAT } from 'sdc-app/onboarding/OnboardingConstants.js';
import { other as optionInputOther } from 'nfvo-components/input/validation/InputOptions.jsx';
import Tabs from 'sdc-ui/lib/react/Tabs.js';
import Tab from 'sdc-ui/lib/react/Tab.js';
import EntitlementPoolsLimits from './EntitlementPoolsLimits.js';
import {
    limitType,
    NEW_LIMIT_TEMP_ID
} from '../limits/LimitEditorConstants.js';

const EntitlementPoolPropType = PropTypes.shape({
    id: PropTypes.string,
    name: PropTypes.string,
    description: PropTypes.string,
    operationalScope: PropTypes.shape({
        choices: PropTypes.array,
        other: PropTypes.string
    }),
    thresholdUnits: PropTypes.string,
    thresholdValue: PropTypes.string,
    increments: PropTypes.string,
    startDate: PropTypes.string,
    expiryDate: PropTypes.string
});

const EntitlementPoolsFormContent = ({
    data,
    genericFieldInfo,
    onDataChanged,
    validateName,
    thresholdValueValidation,
    validateStartDate
}) => {
    let {
        name,
        description,
        operationalScope,
        thresholdUnits,
        thresholdValue,
        increments,
        startDate,
        expiryDate
    } = data;
    return (
        <GridSection hasLastColSet>
            <GridItem colSpan={2}>
                <Input
                    onChange={name =>
                        onDataChanged({ name }, SP_ENTITLEMENT_POOL_FORM, {
                            name: validateName
                        })
                    }
                    isValid={genericFieldInfo.name.isValid}
                    isRequired={true}
                    errorText={genericFieldInfo.name.errorText}
                    label={i18n('Name')}
                    value={name}
                    data-test-id="create-ep-name"
                    type="text"
                />
            </GridItem>
            <GridItem colSpan={2} lastColInRow>
                <InputOptions
                    onInputChange={() => {}}
                    isMultiSelect={true}
                    onEnumChange={operationalScope =>
                        onDataChanged(
                            {
                                operationalScope: {
                                    choices: operationalScope,
                                    other: ''
                                }
                            },
                            SP_ENTITLEMENT_POOL_FORM
                        )
                    }
                    onOtherChange={operationalScope =>
                        onDataChanged(
                            {
                                operationalScope: {
                                    choices: [optionInputOther.OTHER],
                                    other: operationalScope
                                }
                            },
                            SP_ENTITLEMENT_POOL_FORM
                        )
                    }
                    label={i18n('Operational Scope')}
                    data-test-id="create-ep-operational-scope"
                    type="select"
                    multiSelectedEnum={
                        operationalScope && operationalScope.choices
                    }
                    otherValue={operationalScope && operationalScope.other}
                    values={
                        EntitlementPoolsOptionsInputValues.OPERATIONAL_SCOPE
                    }
                    isValid={genericFieldInfo.operationalScope.isValid}
                    errorText={genericFieldInfo.operationalScope.errorText}
                />
            </GridItem>
            <GridItem colSpan={2} stretch>
                <Input
                    onChange={description =>
                        onDataChanged({ description }, SP_ENTITLEMENT_POOL_FORM)
                    }
                    isValid={genericFieldInfo.description.isValid}
                    errorText={genericFieldInfo.description.errorText}
                    label={i18n('Description')}
                    value={description}
                    data-test-id="create-ep-description"
                    type="textarea"
                />
            </GridItem>
            <GridItem colSpan={2} lastColInRow>
                <div className="threshold-section">
                    <Input
                        onChange={e => {
                            // setting the unit to the correct value
                            const selectedIndex = e.target.selectedIndex;
                            const val = e.target.options[selectedIndex].value;
                            onDataChanged(
                                { thresholdUnits: val },
                                SP_ENTITLEMENT_POOL_FORM
                            );
                            // TODO make sure that the value is valid too
                            if (thresholdValue && thresholdValue !== '') {
                                onDataChanged(
                                    { thresholdValue: thresholdValue },
                                    SP_ENTITLEMENT_POOL_FORM,
                                    { thresholdValue: thresholdValueValidation }
                                );
                            }
                        }}
                        value={thresholdUnits}
                        label={i18n('Threshold Units')}
                        data-test-id="create-ep-threshold-units"
                        isValid={genericFieldInfo.thresholdUnits.isValid}
                        errorText={genericFieldInfo.thresholdUnits.errorText}
                        groupClassName="bootstrap-input-options"
                        className="input-options-select"
                        type="select">
                        {LicenseModelOptionsInputValues.THRESHOLD_UNITS.map(
                            mtype => (
                                <option key={mtype.enum} value={mtype.enum}>{`${
                                    mtype.title
                                }`}</option>
                            )
                        )}
                    </Input>

                    <Input
                        className="entitlement-pools-form-row-threshold-value"
                        onChange={thresholdValue =>
                            onDataChanged(
                                { thresholdValue },
                                SP_ENTITLEMENT_POOL_FORM,
                                {
                                    thresholdValue: thresholdValueValidation
                                }
                            )
                        }
                        label={i18n('Threshold Value')}
                        isValid={genericFieldInfo.thresholdValue.isValid}
                        errorText={genericFieldInfo.thresholdValue.errorText}
                        data-test-id="create-ep-threshold-value"
                        value={thresholdValue}
                        type="text"
                    />
                </div>
                <Input
                    onChange={increments =>
                        onDataChanged({ increments }, SP_ENTITLEMENT_POOL_FORM)
                    }
                    label={i18n('Increments')}
                    value={increments}
                    data-test-id="create-ep-increments"
                    type="text"
                />
                <div className="date-section">
                    <Input
                        type="date"
                        label={i18n('Start Date')}
                        value={startDate}
                        dateFormat={DATE_FORMAT}
                        startDate={startDate}
                        endDate={expiryDate}
                        onChange={startDate =>
                            onDataChanged(
                                {
                                    startDate: startDate
                                        ? startDate.format(DATE_FORMAT)
                                        : ''
                                },
                                SP_ENTITLEMENT_POOL_FORM,
                                { startDate: validateStartDate }
                            )
                        }
                        isValid={genericFieldInfo.startDate.isValid}
                        errorText={genericFieldInfo.startDate.errorText}
                        selectsStart
                    />
                    <Input
                        type="date"
                        label={i18n('Expiry Date')}
                        value={expiryDate}
                        dateFormat={DATE_FORMAT}
                        startDate={startDate}
                        endDate={expiryDate}
                        onChange={expiryDate => {
                            onDataChanged(
                                {
                                    expiryDate: expiryDate
                                        ? expiryDate.format(DATE_FORMAT)
                                        : ''
                                },
                                SP_ENTITLEMENT_POOL_FORM
                            );
                            onDataChanged(
                                { startDate },
                                SP_ENTITLEMENT_POOL_FORM,
                                {
                                    startDate: validateStartDate
                                }
                            );
                        }}
                        isValid={genericFieldInfo.expiryDate.isValid}
                        errorText={genericFieldInfo.expiryDate.errorText}
                        selectsEnd
                    />
                </div>
            </GridItem>
        </GridSection>
    );
};

class EntitlementPoolsEditorView extends React.Component {
    static propTypes = {
        data: EntitlementPoolPropType,
        previousData: EntitlementPoolPropType,
        EPNames: PropTypes.object,
        isReadOnlyMode: PropTypes.bool,
        onDataChanged: PropTypes.func.isRequired,
        onSubmit: PropTypes.func.isRequired,
        onCancel: PropTypes.func.isRequired
    };

    static defaultProps = {
        data: {}
    };

    componentDidUpdate(prevProps) {
        if (
            this.props.formReady &&
            this.props.formReady !== prevProps.formReady
        ) {
            // if form validation succeeded -> continue with submit
            this.submit();
        }
    }

    state = {
        selectedTab: tabIds.GENERAL,
        selectedLimit: ''
    };

    render() {
        let {
            data = {},
            onDataChanged,
            isReadOnlyMode,
            genericFieldInfo,
            onCloseLimitEditor,
            limitsList = []
        } = this.props;
        const { selectedTab } = this.state;
        const isTabsDisabled = !data.id || !this.props.isFormValid;

        return (
            <div>
                <Tabs
                    type="menu"
                    activeTab={selectedTab}
                    onTabClick={tabIndex => {
                        if (tabIndex === tabIds.ADD_LIMIT_BUTTON) {
                            this.onAddLimit();
                        } else {
                            this.setState({ selectedTab: tabIndex });
                            this.setState({ selectedLimit: '' });
                            onCloseLimitEditor();
                        }
                    }}
                    invalidTabs={[]}>
                    <Tab
                        tabId={tabIds.GENERAL}
                        data-test-id="general-tab"
                        title={i18n('General')}>
                        {genericFieldInfo && (
                            <Form
                                ref="validationForm"
                                hasButtons={false}
                                labledButtons={false}
                                isReadOnlyMode={isReadOnlyMode}
                                isValid={this.props.isFormValid}
                                formReady={this.props.formReady}
                                onValidateForm={() =>
                                    this.props.onValidateForm(
                                        SP_ENTITLEMENT_POOL_FORM
                                    )
                                }
                                className="license-model-form entitlement-pools-form">
                                <EntitlementPoolsFormContent
                                    data={data}
                                    genericFieldInfo={genericFieldInfo}
                                    onDataChanged={onDataChanged}
                                    validateName={value =>
                                        this.validateName(value)
                                    }
                                    validateStartDate={(value, state) =>
                                        validateStartDate(value, state)
                                    }
                                    thresholdValueValidation={(value, state) =>
                                        thresholdValueValidation(value, state)
                                    }
                                />
                            </Form>
                        )}
                    </Tab>
                    <Tab
                        disabled={isTabsDisabled}
                        tabId={tabIds.SP_LIMITS}
                        data-test-id="sp-limits-tab"
                        title={i18n('SP Limits')}>
                        {selectedTab === tabIds.SP_LIMITS && (
                            <EntitlementPoolsLimits
                                isReadOnlyMode={isReadOnlyMode}
                                limitType={limitType.SERVICE_PROVIDER}
                                limitsList={limitsList.filter(
                                    item =>
                                        item.type === limitType.SERVICE_PROVIDER
                                )}
                                selectedLimit={this.state.selectedLimit}
                                onCloseLimitEditor={() =>
                                    this.onCloseLimitEditor()
                                }
                                onSelectLimit={limit =>
                                    this.onSelectLimit(limit)
                                }
                            />
                        )}
                    </Tab>
                    <Tab
                        disabled={isTabsDisabled}
                        tabId={tabIds.VENDOR_LIMITS}
                        data-test-id="vendor-limits-tab"
                        title={i18n('Vendor Limits')}>
                        {selectedTab === tabIds.VENDOR_LIMITS && (
                            <EntitlementPoolsLimits
                                isReadOnlyMode={isReadOnlyMode}
                                limitType={limitType.VENDOR}
                                limitsList={limitsList.filter(
                                    item => item.type === limitType.VENDOR
                                )}
                                selectedLimit={this.state.selectedLimit}
                                onCloseLimitEditor={() =>
                                    this.onCloseLimitEditor()
                                }
                                onSelectLimit={limit =>
                                    this.onSelectLimit(limit)
                                }
                            />
                        )}
                    </Tab>
                    {selectedTab !== tabIds.GENERAL ? (
                        <Button
                            disabled={
                                this.state.selectedLimit || isReadOnlyMode
                            }
                            className="add-limit-button"
                            tabId={tabIds.ADD_LIMIT_BUTTON}
                            btnType="link"
                            iconName="plus">
                            {i18n('Add Limit')}
                        </Button>
                    ) : (
                        <div key="empty_ep_tab_key" />
                    ) // Render empty div to not break tabs
                    }
                </Tabs>
                <GridSection className="license-model-modal-buttons entitlement-pools-editor-buttons">
                    {!this.state.selectedLimit && (
                        <Button
                            btnType="primary"
                            disabled={!this.props.isFormValid || isReadOnlyMode}
                            onClick={() => this.submit()}
                            type="reset">
                            {i18n('Save')}
                        </Button>
                    )}
                    <Button
                        btnType={
                            this.state.selectedLimit ? 'primary' : 'secondary'
                        }
                        onClick={() => this.props.onCancel()}
                        type="reset">
                        {i18n('Cancel')}
                    </Button>
                </GridSection>
            </div>
        );
    }

    submit() {
        const {
            data: entitlementPool,
            previousData: previousEntitlementPool,
            formReady
        } = this.props;
        if (!formReady) {
            this.props.onValidateForm(SP_ENTITLEMENT_POOL_FORM);
        } else {
            this.props.onSubmit({ entitlementPool, previousEntitlementPool });
        }
    }

    validateName(value) {
        const { data: { id }, EPNames } = this.props;
        const isExists = Validator.isItemNameAlreadyExistsInList({
            itemId: id,
            itemName: value,
            list: EPNames
        });

        return !isExists
            ? { isValid: true, errorText: '' }
            : {
                  isValid: false,
                  errorText: i18n(
                      "Entitlement pool by the name '" +
                          value +
                          "' already exists. Entitlement pool name must be unique"
                  )
              };
    }

    onSelectLimit(limit) {
        if (limit.id === this.state.selectedLimit) {
            this.setState({ selectedLimit: '' });
            return;
        }
        this.setState({ selectedLimit: limit.id });
        this.props.onOpenLimitEditor(limit);
    }

    onCloseLimitEditor() {
        this.setState({ selectedLimit: '' });
        this.props.onCloseLimitEditor();
    }

    onAddLimit() {
        this.setState({ selectedLimit: NEW_LIMIT_TEMP_ID });
        this.props.onOpenLimitEditor();
    }
}

export default EntitlementPoolsEditorView;