CLASS z2ui5_cl_app_startup DEFINITION
  PUBLIC FINAL
  CREATE PROTECTED.

  PUBLIC SECTION.
    INTERFACES z2ui5_if_app.

    DATA:
      BEGIN OF ms_home,
        url                    TYPE string,
        btn_text               TYPE string,
        btn_event_id           TYPE string,
        btn_icon               TYPE string,
        classname              TYPE string,
        class_value_state      TYPE string,
        class_value_state_text TYPE string,
        class_editable         TYPE abap_bool VALUE abap_true,
      END OF ms_home.

    DATA mv_ui5_version       TYPE string.

    DATA client               TYPE REF TO z2ui5_if_client.
    DATA mv_check_initialized TYPE abap_bool.

    CLASS-METHODS factory
      RETURNING
        VALUE(result) TYPE REF TO z2ui5_cl_app_startup.

    METHODS z2ui5_on_init.
    METHODS z2ui5_on_event.
    METHODS view_display_start.
    METHODS on_event_check.
    METHODS view_display_popup.

  PROTECTED SECTION.
    DATA mt_classes TYPE z2ui5_cl_util=>ty_t_classes.

  PRIVATE SECTION.
ENDCLASS.


CLASS z2ui5_cl_app_startup IMPLEMENTATION.

  METHOD factory.

    result = NEW #( ).

  ENDMETHOD.

  METHOD on_event_check.
    " TODO: variable is assigned but never used (ABAP cleaner)
    DATA li_app_test TYPE REF TO z2ui5_if_app.

    TRY.
        ms_home-classname = z2ui5_cl_util=>c_trim_upper( ms_home-classname ).
        CREATE OBJECT li_app_test TYPE (ms_home-classname).

        client->message_toast_display( `App is ready to start!` ).
        ms_home-btn_text          = `edit`.
        ms_home-btn_event_id      = `BUTTON_CHANGE`.
        ms_home-btn_icon          = `sap-icon://edit`.
        ms_home-class_value_state = `Success`.
        ms_home-class_editable    = abap_false.

        ms_home-url               = z2ui5_cl_core_srv_util=>app_get_url( client    = client
                                                                         classname = ms_home-classname ).

      CATCH cx_root INTO DATA(lx) ##CATCH_ALL.
        ms_home-class_value_state_text = lx->get_text( ).
        ms_home-class_value_state      = `Warning`.
        client->message_box_display( text = ms_home-class_value_state_text
                                     type = `error` ).
    ENDTRY.

  ENDMETHOD.

  METHOD view_display_start.

    DATA(page) = z2ui5_cl_xml_view=>factory( )->shell( )->page(
                     title         = `abap2UI5 - Developing UI5 Apps Purely in ABAP`
                     shownavbutton = abap_false ).

    page->header_content(
      )->toolbar_spacer(
      )->button( text  = `Debugging Tools`
                 icon  = `sap-icon://enablement`
                 press = client->_event( `OPEN_DEBUG` )
      )->button( text  = `System`
                 icon  = `sap-icon://information`
                 press = client->_event( `OPEN_INFO` ) ).

    DATA(simple_form) = page->simple_form( editable                = abap_true
                                           layout                  = `ResponsiveGridLayout`
                                           labelspanxl             = `4`
                                           labelspanl              = `3`
                                           labelspanm              = `4`
                                           labelspans              = `12`
                                           adjustlabelspan         = abap_false
                                           emptyspanxl             = `0`
                                           emptyspanl              = `4`
                                           emptyspanm              = `0`
                                           emptyspans              = `0`
                                           columnsxl               = `1`
                                           columnsl                = `1`
                                           columnsm                = `1`
                                           singlecontainerfullsize = abap_false
      )->content( `form` ).

    simple_form->toolbar( )->title( `Quickstart` ).
    simple_form->label( `Step 1`
      )->text( `Create a new class in your ABAP system`
      )->label( `Step 2`
      )->text( `Add the interface: Z2UI5_IF_APP`
      )->label( `Step 3`
      )->text( `Define the view, implement behavior`
      )->label(
      )->link( text   = `(Example)`
               target = `_blank`
               href   = `https://github.com/abap2UI5/abap2UI5/blob/main/src/02/z2ui5_cl_app_hello_world.clas.abap`
      )->label( `Step 4` ).

    IF ms_home-class_editable = abap_true.

      simple_form->input( placeholder      = `fill in the class name and press 'check'`
                          enabled          = client->_bind( ms_home-class_editable )
                          value            = client->_bind_edit( ms_home-classname )
                          submit           = client->_event( ms_home-btn_event_id )
                          valuehelprequest = client->_event( 'VALUE_HELP' )
                          showvaluehelp    = abap_true
                          width            = `70%` ).

    ELSE.
      simple_form->text( ms_home-classname ).
    ENDIF.

    simple_form->label( ).
    simple_form->button( press = client->_event( ms_home-btn_event_id )
                         text  = client->_bind( ms_home-btn_text )
                         icon  = client->_bind( ms_home-btn_icon )
                         width = `70%` ).
    simple_form->label( `Step 5`
      )->link( text    = `Link to the Application`
               target  = `_blank`
               href    = client->_bind( ms_home-url )
               enabled = |\{= ${ client->_bind( val = ms_home-class_editable ) } === false \}| ).

    DATA(lv_url_samples2) = z2ui5_cl_core_srv_util=>app_get_url( client    = client
                                                                 classname = 'z2ui5_cl_demo_app_000' ).

    simple_form->toolbar( )->title( `What's next?` ).

    IF z2ui5_cl_util=>rtti_check_class_exists( `z2ui5_cl_demo_app_000` ).
      simple_form->label( `Start Developing` ).
      simple_form->button( text  = `Explore Code Samples`
                           press = client->_event_client( val   = client->cs_event-open_new_tab
                                                          t_arg = VALUE #( ( lv_url_samples2 ) ) )
                           width = `70%` ).

    ELSE.
      simple_form->label( `Install the sample repository` ).
      simple_form->link( text   = `And explore more than 200 sample apps...`
                         target = `_blank`
                         href   = `https://github.com/abap2UI5/abap2UI5-samples` ).
    ENDIF.

    simple_form->toolbar( )->title( `Contribution` ).

    simple_form->label( `Open an issue` ).
    simple_form->link( text   = `You have problems, comments or wishes?`
                       target = `_blank`
                       href   = `https://github.com/abap2UI5/abap2UI5/issues` ).

    simple_form->label( `Open a Pull Request` ).
    simple_form->link( text   = `You added a new feature or fixed a bug?`
                       target = `_blank`
                       href   = `https://github.com/abap2UI5/abap2UI5/pulls` ).


    simple_form->toolbar( )->title( `More` ).
    simple_form->label( ).
    simple_form->link( text   = `www.abap2UI5.org`
                       target = `_blank`
                       href   = `http://www.abap2UI5.org` ).

    client->view_display( page->stringify( ) ).

  ENDMETHOD.

  METHOD z2ui5_if_app~main.

    me->client = client.

    IF mv_check_initialized = abap_false.
      mv_check_initialized = abap_true.
      z2ui5_on_init( ).
      view_display_start( ).
      RETURN.
    ENDIF.

    IF client->get( )-check_on_navigated = abap_true.
      TRY.
          DATA(lo_f4) = CAST z2ui5_cl_pop_to_select( client->get_app( client->get( )-s_draft-id_prev_app ) ).
          DATA(ls_result) = lo_f4->result( ).
          IF ls_result-check_confirmed = abap_true.

            ASSIGN ls_result-row->* TO FIELD-SYMBOL(<class>).
            ms_home = CORRESPONDING #( BASE ( ms_home ) <class> ).
            view_display_start( ).
            RETURN.
          ENDIF.
        CATCH cx_root.
      ENDTRY.
    ENDIF.

    z2ui5_on_event( ).

  ENDMETHOD.

  METHOD view_display_popup.

    DATA(page2) = z2ui5_cl_xml_view=>factory_popup(
         )->dialog( title      = `abap2UI5 - System Information`
                    afterclose = client->_event( `CLOSE` ) ).

    DATA(content) = page2->content( ).
    content->_z2ui5( )->info_frontend( ui5_version = client->_bind( mv_ui5_version ) ).

    DATA(simple_form2) = content->simple_form( editable                = abap_true
                                               layout                  = `ResponsiveGridLayout`
                                               labelspanxl             = `4`
                                               labelspanl              = `3`
                                               labelspanm              = `4`
                                               labelspans              = `12`
                                               adjustlabelspan         = abap_false
                                               emptyspanxl             = `0`
                                               emptyspanl              = `4`
                                               emptyspanm              = `0`
                                               emptyspans              = `0`
                                               columnsxl               = `1`
                                               columnsl                = `1`
                                               columnsm                = `1`
                                               singlecontainerfullsize = abap_false
      )->content( `form` ).

    simple_form2->toolbar( )->title( `Frontend` ).

    simple_form2->label( `UI5 Version` ).
    simple_form2->text( client->_bind( mv_ui5_version ) ).
    simple_form2->label( `Launchpad active` ).
    simple_form2->checkbox( enabled  = abap_false
                            selected = client->get( )-check_launchpad_active ).

    simple_form2->toolbar( )->title( `Backend` ).

    simple_form2->label( `ABAP for Cloud` ).
    simple_form2->checkbox( enabled  = abap_false
                            selected = z2ui5_cl_util=>context_check_abap_cloud( ) ).

    DATA(lv_count) = CONV string( NEW z2ui5_cl_core_srv_draft( )->count_entries( ) ).
    simple_form2->toolbar( )->title( `abap2UI5` ).
    simple_form2->label( `Version ` ).
    simple_form2->text( z2ui5_if_app=>version ).
    simple_form2->label( `Draft Entries ` ).
    simple_form2->text( lv_count ).

    page2->end_button( )->button( text  = 'close'
                                  press = client->_event( 'CLOSE' )
                                  type  = 'Emphasized' ).

    client->popup_display( page2->stringify( ) ).

  ENDMETHOD.

  METHOD z2ui5_on_event.

    DATA li_app TYPE REF TO z2ui5_if_app.

    CASE client->get( )-event.

      WHEN `CLOSE`.
        client->popup_destroy( ).

      WHEN `OPEN_DEBUG`.
        client->message_box_display( `Press CTRL+F12 to open the debugging tools` ).
      WHEN `OPEN_INFO`.
        view_display_popup( ).
*        client->nav_app_call( z2ui5_cl_core_app_info=>factory( ) ).
        RETURN.

      WHEN `BUTTON_CHECK`.
        IF ms_home-class_editable = abap_false.
          ms_home-btn_text       = `check`.
          ms_home-btn_event_id   = `BUTTON_CHECK`.
          ms_home-btn_icon       = `sap-icon://validate`.
          ms_home-class_editable = abap_true.

        ELSE.
          on_event_check( ).
        ENDIF.
        client->view_model_update( ).

      WHEN 'VALUE_HELP'.
        TRY.
            mt_classes = z2ui5_cl_util=>rtti_get_classes_impl_intf( z2ui5_cl_util=>rtti_get_intfname_by_ref( li_app ) ).
          CATCH cx_root.
            client->message_box_display( `Unfortunately the value help is not available on your ABAP release!` ).
            RETURN.
        ENDTRY.
        client->nav_app_call( z2ui5_cl_pop_to_select=>factory( mt_classes ) ).
    ENDCASE.

  ENDMETHOD.

  METHOD z2ui5_on_init.

    ms_home-btn_text       = `check`.
    ms_home-btn_event_id   = `BUTTON_CHECK`.
    ms_home-class_editable = abap_true.
    ms_home-btn_icon       = `sap-icon://validate`.
    ms_home-classname      = z2ui5_cl_util=>rtti_get_classname_by_ref( NEW z2ui5_cl_app_hello_world( ) ).

  ENDMETHOD.

ENDCLASS.