import {GridFactory} from '../grid-cellrenderer/grid-factory';
import {IGridCellParams} from '../grid-cellrenderer/grid-cell-params';
import {Const} from '../utils/const';

export class AgGridComponentConst {

    // Key for cell type (must be used in data of grid item)
    public static CELL_KEY_TYPE = 'cellKeyType';
    // Cell renderers
    public static CELL_RENDERER_CHECKBOX = 'gridCheckboxRenderer';
    public static CELL_RENDERER_TEXT = 'gridTextRenderer';
    public static CELL_RENDERER_DATE = 'gridDateRenderer';
    public static CELL_RENDERER_INPUT = 'gridInputRenderer';
    public static CELL_RENDERER_SELECT = 'gridSelectRenderer';
    public static CELL_RENDERER_BLOCKED = 'gridBlockedRenderer';
    public static CELL_RENDERER_DEFAULT = '';
    // Cell editors
    public static CELL_EDITOR_CHECKBOX = 'gridCheckboxEditor';
    public static CELL_EDITOR_TEXT = 'gridTextEditor';
    public static CELL_EDITOR_DATE = 'gridDateEditor';
    public static CELL_EDITOR_INPUT = 'gridInputEditor';
    public static CELL_EDITOR_SELECT = 'gridSelectEditor';
    public static CELL_EDITOR_BLOCKED = 'gridBlockedEditor';
    public static CELL_EDITOR_DEFAULT = '';
    // Cell types
    public static CELL_TYPE_DEFAULT = 'default';
    public static CELL_TYPE_CHECKBOX = 'checkbox';
    public static CELL_TYPE_TEXT = 'text';
    public static CELL_TYPE_DATE = 'date';
    public static CELL_TYPE_INPUT = 'input';
    public static CELL_TYPE_SELECT = 'select';
    public static CELL_TYPE_BLOCKED = 'blocked';

    // Cell units
    public static CELL_UNIT_PERCENT = '%';
    public static CELL_UNIT_EURO = '€';
    public static CELL_UNIT_DAYS = ' Tage';
    public static CELL_UNIT_SQUARE_METER: string = ' ' + Const.UNIT_SQUARE_METER;

    // Cell value types
    public static CELL_VALUE_TYPE_BOOL = 'bool';
    public static CELL_VALUE_TYPE_INT = 'int';
    public static CELL_VALUE_TYPE_FLOAT = 'float';
    public static CELL_VALUE_TYPE_STRING = 'string';

    public static validCellUnits: string[] = [
        AgGridComponentConst.CELL_UNIT_PERCENT,
        AgGridComponentConst.CELL_UNIT_EURO,
        AgGridComponentConst.CELL_UNIT_DAYS,
        AgGridComponentConst.CELL_UNIT_SQUARE_METER,
    ];

    public static validCellValueTypes: string[] = [
        AgGridComponentConst.CELL_VALUE_TYPE_BOOL,
        AgGridComponentConst.CELL_VALUE_TYPE_INT,
        AgGridComponentConst.CELL_VALUE_TYPE_FLOAT,
        AgGridComponentConst.CELL_VALUE_TYPE_STRING,
    ];

    public static gridInputError: string;

    /**
     * Sets input error
     */
    public static setGridInputError(errorMessage: string = null): void {
        AgGridComponentConst.gridInputError = errorMessage;
        if (null !== errorMessage) {
            setTimeout(() => {
                AgGridComponentConst.setGridInputError();
            }, 10);
        }
    }

    /**
     * Returns a cell renderer for given type with given parameters
     */
    public static cellRendererSelector(params: any, gridCellParams: IGridCellParams = null): {} {
        if (null === gridCellParams) {
            gridCellParams = GridFactory.getGridCellParams();
        }

        AgGridComponentConst.checkCellValueType(gridCellParams.type);
        AgGridComponentConst.checkCellUnit(gridCellParams.unit);
        switch (params.data[AgGridComponentConst.CELL_KEY_TYPE]) {
            case AgGridComponentConst.CELL_TYPE_CHECKBOX:
                return {component: AgGridComponentConst.CELL_RENDERER_CHECKBOX, params: gridCellParams};
            case AgGridComponentConst.CELL_TYPE_TEXT:
                return {component: AgGridComponentConst.CELL_RENDERER_TEXT, params: gridCellParams};
            case AgGridComponentConst.CELL_TYPE_INPUT:
                return {component: AgGridComponentConst.CELL_RENDERER_INPUT, params: gridCellParams};
            case AgGridComponentConst.CELL_TYPE_DATE:
                return {component: AgGridComponentConst.CELL_RENDERER_DATE, params: gridCellParams};
            case AgGridComponentConst.CELL_TYPE_SELECT:
                return {component: AgGridComponentConst.CELL_RENDERER_SELECT, params: gridCellParams};
            case AgGridComponentConst.CELL_TYPE_BLOCKED:
                return {component: AgGridComponentConst.CELL_RENDERER_BLOCKED, params: gridCellParams};
            case AgGridComponentConst.CELL_TYPE_DEFAULT:
                // Nothing specific, so ag grid will take it's own default cell renderer
                return;
            default:
                throw new Error('Unknown cell type');
        }
    }

    /**
     * Returns a cell editor for given type with given parameters
     */
    public static cellEditorSelector(params: any, gridCellParams: IGridCellParams = null) {
        if (null === gridCellParams) {
            gridCellParams = GridFactory.getGridCellParams();
        }

        AgGridComponentConst.checkCellValueType(gridCellParams.type);
        AgGridComponentConst.checkCellUnit(gridCellParams.unit);
        switch (params.data[AgGridComponentConst.CELL_KEY_TYPE]) {
            case AgGridComponentConst.CELL_TYPE_CHECKBOX:
                // NOTE: Overwrite any given type for checkbox with boolean, since checkbox can only hold boolean values
                gridCellParams.type = AgGridComponentConst.CELL_VALUE_TYPE_BOOL;
                return {component: AgGridComponentConst.CELL_EDITOR_CHECKBOX, params: gridCellParams};
            case AgGridComponentConst.CELL_TYPE_TEXT:
                return {component: AgGridComponentConst.CELL_EDITOR_TEXT, params: gridCellParams};
            case AgGridComponentConst.CELL_TYPE_INPUT:
                return {component: AgGridComponentConst.CELL_EDITOR_INPUT, params: gridCellParams};
            case AgGridComponentConst.CELL_TYPE_DATE:
                return {component: AgGridComponentConst.CELL_EDITOR_DATE, params: gridCellParams};
            case AgGridComponentConst.CELL_TYPE_SELECT:
                return {component: AgGridComponentConst.CELL_EDITOR_SELECT, params: gridCellParams};
            case AgGridComponentConst.CELL_TYPE_BLOCKED:
                return {component: AgGridComponentConst.CELL_EDITOR_BLOCKED, params: gridCellParams};
            case AgGridComponentConst.CELL_TYPE_DEFAULT:
                // Nothing specific, so ag grid will take it's own default cell editor
                return;
            default:
                throw new Error('Unknown cell type');
        }
    }

    /**
     * Checks if cell value type is valid
     * @param {string} type
     */
    private static checkCellValueType(type: string = null): void {
        if (null !== type && AgGridComponentConst.validCellValueTypes.indexOf(type) < 0) {
            throw new Error('Unknown cell value type');
        }
    }

    /**
     * Checks if cell unit is valid
     * @param {string} type
     */
    private static checkCellUnit(type: string = null): void {
        if (null !== type && AgGridComponentConst.validCellUnits.indexOf(type) < 0) {
            throw new Error('Unknown cell value type');
        }
    }

}