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CLASS zcl_abapgit_gui_page_sett_info DEFINITION
  PUBLIC
  INHERITING FROM zcl_abapgit_gui_component
  FINAL
  CREATE PRIVATE .
 
  PUBLIC SECTION.
 
    INTERFACES zif_abapgit_gui_event_handler .
    INTERFACES zif_abapgit_gui_renderable .
 
    CLASS-METHODS create
      IMPORTING
        !io_repo       TYPE REF TO zcl_abapgit_repo
      RETURNING
        VALUE(ri_page) TYPE REF TO zif_abapgit_gui_renderable
      RAISING
        zcx_abapgit_exception .
    METHODS constructor
      IMPORTING
        !io_repo TYPE REF TO zcl_abapgit_repo
      RAISING
        zcx_abapgit_exception .
 
  PROTECTED SECTION.
  PRIVATE SECTION.
 
    TYPES:
      BEGIN OF ty_stats,
        measure TYPE string,
        local   TYPE i,
        remote  TYPE i,
      END OF ty_stats .
    TYPES:
      BEGIN OF ty_infos,
        size TYPE p LENGTH 16 DECIMALS 0,
        line TYPE p LENGTH 16 DECIMALS 0,
        sloc TYPE p LENGTH 16 DECIMALS 0,
      END OF ty_infos .
 
    CONSTANTS:
      BEGIN OF c_id,
        info            TYPE string VALUE 'info',
        created_by      TYPE string VALUE 'created_by',
        created_at      TYPE string VALUE 'created_at',
        deserialized_by TYPE string VALUE 'deserialized_by',
        deserialized_at TYPE string VALUE 'deserialized_at',
        stats           TYPE string VALUE 'stats',
        stats_table     TYPE string VALUE 'stats_table',
      END OF c_id .
 
    DATA mo_form TYPE REF TO zcl_abapgit_html_form .
    DATA mo_form_data TYPE REF TO zcl_abapgit_string_map .
    DATA mo_repo TYPE REF TO zcl_abapgit_repo .
    DATA:
      mt_stats TYPE STANDARD TABLE OF ty_stats WITH KEY measure .
 
    METHODS get_form_schema
      RETURNING
        VALUE(ro_form) TYPE REF TO zcl_abapgit_html_form
      RAISING
        zcx_abapgit_exception .
    METHODS read_settings
      RAISING
        zcx_abapgit_exception .
    METHODS read_stats
      RAISING
        zcx_abapgit_exception .
    METHODS read_stats_files
      EXPORTING
        !et_local  TYPE zif_abapgit_definitions=>ty_files_item_tt
        !et_remote TYPE zif_abapgit_git_definitions=>ty_files_tt
      RAISING
        zcx_abapgit_exception .
    METHODS read_stats_state
      RAISING
        zcx_abapgit_exception .
    METHODS read_stats_size_lines_sloc
      IMPORTING
        !it_local        TYPE zif_abapgit_definitions=>ty_files_item_tt
        !it_remote       TYPE zif_abapgit_git_definitions=>ty_files_tt
      EXPORTING
        !et_local_items  TYPE zif_abapgit_definitions=>ty_items_tt
        !et_remote_items TYPE zif_abapgit_definitions=>ty_items_tt
      RAISING
        zcx_abapgit_exception .
    METHODS read_stats_file
      IMPORTING
        !is_file       TYPE zif_abapgit_git_definitions=>ty_file
      RETURNING
        VALUE(rs_info) TYPE ty_infos .
    METHODS read_stats_objects
      CHANGING
        !ct_local_items  TYPE zif_abapgit_definitions=>ty_items_tt
        !ct_remote_items TYPE zif_abapgit_definitions=>ty_items_tt
      RAISING
        zcx_abapgit_exception .
    METHODS format_user
      IMPORTING
        !iv_username   TYPE syuname
      RETURNING
        VALUE(rv_user) TYPE string .
    METHODS format_timestamp
      IMPORTING
        !iv_timestamp       TYPE timestampl
      RETURNING
        VALUE(rv_timestamp) TYPE string .
    METHODS format_size
      IMPORTING
        !iv_size       TYPE i
      RETURNING
        VALUE(rv_size) TYPE string .
ENDCLASS.
 
 
 
CLASS zcl_abapgit_gui_page_sett_info IMPLEMENTATION.
 
 
  METHOD constructor.
 
    super->constructor( ).
    CREATE OBJECT mo_form_data.
    mo_repo = io_repo.
    mo_form = get_form_schema( ).
 
  ENDMETHOD.
 
 
  METHOD create.
 
    DATA lo_component TYPE REF TO zcl_abapgit_gui_page_sett_info.
 
    CREATE OBJECT lo_component
      EXPORTING
        io_repo = io_repo.
 
    ri_page = zcl_abapgit_gui_page_hoc=>create(
      iv_page_title      = 'Repository Stats'
      io_page_menu       = zcl_abapgit_gui_menus=>repo_settings(
                             iv_key = io_repo->get_key( )
                             iv_act = zif_abapgit_definitions=>c_action-repo_infos )
      ii_child_component = lo_component ).
 
  ENDMETHOD.
 
 
  METHOD format_size.
 
    DATA:
      lv_size TYPE p LENGTH 16 DECIMALS 2.
 
    IF iv_size > 1024 * 1024 * 1024.
      lv_size = iv_size / 1024 / 1024 / 1024.
      rv_size = |{ lv_size } GB|.
    ELSEIF iv_size > 1024 * 1024.
      lv_size = iv_size / 1024 / 1024.
      rv_size = |{ lv_size } MB|.
    ELSEIF iv_size > 1024.
      lv_size = iv_size / 1024.
      rv_size = |{ lv_size } KB|.
    ELSE.
      rv_size = |{ iv_size } Bytes|.
    ENDIF.
 
  ENDMETHOD.
 
 
  METHOD format_timestamp.
 
    DATA lv_short TYPE timestamp.
 
    IF iv_timestamp IS INITIAL.
      rv_timestamp = 'n/a'.
      RETURN.
    ENDIF.
 
    cl_abap_tstmp=>move(
      EXPORTING tstmp_src = iv_timestamp
      IMPORTING tstmp_tgt = lv_short ).
 
    rv_timestamp = |{ lv_short TIMESTAMP = ISO }|.
 
  ENDMETHOD.
 
 
  METHOD format_user.
 
    DATA lv_title TYPE string.
 
    IF iv_username IS INITIAL.
      rv_user = 'n/a'.
      RETURN.
    ENDIF.
 
    IF iv_username <> zcl_abapgit_objects_super=>c_user_unknown.
      lv_title = zcl_abapgit_user_record=>get_title( iv_username ).
    ENDIF.
 
    rv_user = iv_username.
    IF lv_title IS NOT INITIAL.
      rv_user = |{ rv_user } ({ lv_title })|.
    ENDIF.
 
  ENDMETHOD.
 
 
  METHOD get_form_schema.
 
    DATA lv_label TYPE string.
 
    ro_form = zcl_abapgit_html_form=>create(
                iv_form_id   = 'repo-infos-form'
                iv_help_page = 'https://docs.abapgit.org/settings-stats.html' ).
 
    IF mo_repo->is_offline( ) = abap_true.
      lv_label = 'ZIP File'.
    ELSE.
      lv_label = 'Remote'.
    ENDIF.
 
    ro_form->start_group(
      iv_name        = c_id-info
      iv_label       = 'Stats'
    )->text(
      iv_name        = c_id-created_by
      iv_label       = 'Created By'
      iv_readonly    = abap_true
    )->text(
      iv_name        = c_id-created_at
      iv_label       = 'Created At'
      iv_readonly    = abap_true
    )->text(
      iv_name        = c_id-deserialized_by
      iv_label       = 'Last Deserialized By'
      iv_readonly    = abap_true
    )->text(
      iv_name        = c_id-deserialized_at
      iv_label       = 'Last Deserialized At'
      iv_readonly    = abap_true
    )->table(
      iv_name        = c_id-stats_table
      iv_label       = 'Statistics'
    )->column(
      iv_label       = 'Measure'
      iv_width       = '50%'
      iv_readonly    = abap_true
    )->column(
      iv_label       = 'Local'
      iv_width       = '25%'
      iv_readonly    = abap_true
    )->column(
      iv_label       = lv_label
      iv_width       = '25%'
      iv_readonly    = abap_true
    )->command(
      iv_label       = 'Back'
      iv_action      = zif_abapgit_definitions=>c_action-go_back ).
 
  ENDMETHOD.
 
 
  METHOD read_settings.

    DATA:
      ls_repo  TYPE zif_abapgit_persistence=>ty_repo,
      ls_stats TYPE ty_stats,
      lv_row   TYPE i,
      lv_int   TYPE i,
      lv_val   TYPE string.

    " Get infos from DB
    TRY.
        ls_repo = zcl_abapgit_persist_factory=>get_repo( )->read( mo_repo->get_key( ) ).
      CATCH zcx_abapgit_not_found.
        zcx_abapgit_exception=>raise( |Repo not found, key { mo_repo->get_key( ) }| ).
    ENDTRY.

    read_stats( ).

    " Infos
    mo_form_data->set(
      iv_key = c_id-created_by
      iv_val = format_user( ls_repo-created_by ) ).
    mo_form_data->set(
      iv_key = c_id-created_at
      iv_val = format_timestamp( ls_repo-created_at ) ).
    mo_form_data->set(
      iv_key = c_id-deserialized_by
      iv_val = format_user( ls_repo-deserialized_by ) ).
    mo_form_data->set(
      iv_key = c_id-deserialized_at
      iv_val = format_timestamp( ls_repo-deserialized_at ) ).

    LOOP AT mt_stats INTO ls_stats.
      lv_row = sy-tabix.
      DO 3 TIMES.
        CASE sy-index.
          WHEN 1.
            lv_val = ls_stats-measure.
          WHEN 2.
            lv_val = ls_stats-local.
          WHEN 3.
            lv_val = ls_stats-remote.
        ENDCASE.

        IF ls_stats-measure CS 'Size' AND sy-index BETWEEN 2 AND 3.
          lv_int = lv_val.
          lv_val = format_size( lv_int ).
        ENDIF.

        mo_form_data->set(
          iv_key = |{ c_id-stats_table }-{ lv_row }-{ sy-index }|
          iv_val = lv_val ).
      ENDDO.
    ENDLOOP.

    mo_form_data->set(
      iv_key = |{ c_id-stats_table }-{ zif_abapgit_html_form=>c_rows }|
      iv_val = |{ lv_row }| ).

  ENDMETHOD.
 
 
  METHOD read_stats.

    DATA:
      lt_local        TYPE zif_abapgit_definitions=>ty_files_item_tt,
      lt_remote       TYPE zif_abapgit_git_definitions=>ty_files_tt,
      lt_local_items  TYPE zif_abapgit_definitions=>ty_items_tt,
      lt_remote_items TYPE zif_abapgit_definitions=>ty_items_tt.

    CLEAR mt_stats.

    read_stats_files(
      IMPORTING
        et_local  = lt_local
        et_remote = lt_remote ).

    read_stats_state( ).

    read_stats_size_lines_sloc(
      EXPORTING
        it_local        = lt_local
        it_remote       = lt_remote
      IMPORTING
        et_local_items  = lt_local_items
        et_remote_items = lt_remote_items ).

    read_stats_objects(
      CHANGING
        ct_local_items  = lt_local_items
        ct_remote_items = lt_remote_items ).

  ENDMETHOD.
 
 
  METHOD read_stats_file.
 
    TYPES ty_char255 TYPE c LENGTH 255.
 
    DATA:
      lv_code TYPE string,
      lt_code TYPE STANDARD TABLE OF ty_char255 WITH DEFAULT KEY.
 
    FIELD-SYMBOLS:
      <ls_code> LIKE LINE OF lt_code.
 
    rs_info-size = xstrlen( is_file-data ).
 
    IF is_file-filename CP '*.abap'.
      TRY.
          lv_code = zcl_abapgit_convert=>xstring_to_string_utf8( is_file-data ).
        CATCH zcx_abapgit_exception ##NO_HANDLER.
      ENDTRY.
 
      SPLIT lv_code AT cl_abap_char_utilities=>newline INTO TABLE lt_code.
 
      rs_info-line = lines( lt_code ).
 
      LOOP AT lt_code ASSIGNING <ls_code> WHERE table_line IS NOT INITIAL AND table_line(1) <> '*'.
        SHIFT <ls_code> LEFT DELETING LEADING space.
        IF <ls_code>(1) <> '"'.
          rs_info-sloc = rs_info-sloc + 1.
        ENDIF.
      ENDLOOP.
    ENDIF.
 
  ENDMETHOD.
 
 
  METHOD read_stats_files.

    DATA ls_stats TYPE ty_stats.
    DATA lt_remote_wo_ignored TYPE zif_abapgit_git_definitions=>ty_files_tt.

    et_local = mo_repo->get_files_local( ).

    ls_stats-measure = 'Number of Files'.
    ls_stats-local   = lines( et_local ).

    IF mo_repo->has_remote_source( ) = abap_true.
      et_remote = mo_repo->get_files_remote( ).
      ls_stats-remote = lines( et_remote ).
      lt_remote_wo_ignored = mo_repo->get_files_remote( iv_ignore_files = abap_true ).
    ENDIF.

    APPEND ls_stats TO mt_stats.

    IF et_remote IS NOT INITIAL.
      CLEAR ls_stats.
      ls_stats-measure = 'Number of Ignored Files'.
      ls_stats-remote = lines( et_remote ) - lines( lt_remote_wo_ignored ).
      APPEND ls_stats TO mt_stats.
    ENDIF.

  ENDMETHOD.
 
 
  METHOD read_stats_objects.

    DATA:
      ls_stats           TYPE ty_stats,
      ls_item            TYPE zif_abapgit_definitions=>ty_item,
      lt_supported_types TYPE zcl_abapgit_objects=>ty_types_tt.

    ls_stats-measure = 'Number of Objects'.

    DELETE ct_local_items WHERE obj_type IS INITIAL OR obj_name IS INITIAL.
    ls_stats-local = lines( ct_local_items ).

    DELETE ct_remote_items WHERE obj_type IS INITIAL OR obj_name IS INITIAL.
    ls_stats-remote = lines( ct_remote_items ).

    APPEND ls_stats TO mt_stats.

    CLEAR ls_stats.
    ls_stats-measure = 'Number of Unsupported Objects'.
    ls_stats-local   = lines( mo_repo->get_unsupported_objects_local( ) ).

    lt_supported_types = zcl_abapgit_objects=>supported_list( ).

    LOOP AT ct_remote_items INTO ls_item.
      READ TABLE lt_supported_types WITH KEY table_line = ls_item-obj_type TRANSPORTING NO FIELDS.
      IF sy-subrc <> 0.
        ls_stats-remote = ls_stats-remote + 1.
      ENDIF.
    ENDLOOP.

    APPEND ls_stats TO mt_stats.

  ENDMETHOD.
 
 
  METHOD read_stats_size_lines_sloc.

    DATA:
      ls_stats       TYPE ty_stats,
      lv_ignored     TYPE abap_bool,
      ls_info_file   TYPE ty_infos,
      ls_info_local  TYPE ty_infos,
      ls_info_remote TYPE ty_infos,
      ls_item        TYPE zif_abapgit_definitions=>ty_item.

    FIELD-SYMBOLS:
      <ls_local>  LIKE LINE OF it_local,
      <ls_remote> LIKE LINE OF it_remote.

    LOOP AT it_local ASSIGNING <ls_local>.
      ls_info_file = read_stats_file( <ls_local>-file ).

      ls_info_local-size = ls_info_local-size + ls_info_file-size.
      ls_info_local-line = ls_info_local-line + ls_info_file-line.
      ls_info_local-sloc = ls_info_local-sloc + ls_info_file-sloc.

      COLLECT <ls_local>-item INTO et_local_items.
    ENDLOOP.

    IF mo_repo->has_remote_source( ) = abap_true.
      LOOP AT it_remote ASSIGNING <ls_remote> WHERE filename IS NOT INITIAL.
        lv_ignored = mo_repo->get_dot_abapgit( )->is_ignored(
                       iv_filename = <ls_remote>-filename
                       iv_path     = <ls_remote>-path ).

        IF lv_ignored = abap_false.
          ls_info_file = read_stats_file( <ls_remote> ).

          ls_info_remote-size = ls_info_remote-size + ls_info_file-size.
          ls_info_remote-line = ls_info_remote-line + ls_info_file-line.
          ls_info_remote-sloc = ls_info_remote-sloc + ls_info_file-sloc.

          TRY.
              zcl_abapgit_filename_logic=>file_to_object(
                EXPORTING
                  iv_filename = <ls_remote>-filename
                  iv_path     = <ls_remote>-path
                  iv_devclass = mo_repo->get_package( )
                  io_dot      = mo_repo->get_dot_abapgit( )
                IMPORTING
                  es_item     = ls_item ).
              COLLECT ls_item INTO et_remote_items.
            CATCH zcx_abapgit_exception ##NO_HANDLER.
          ENDTRY.
        ENDIF.

      ENDLOOP.
    ENDIF.

    ls_stats-measure = 'Size of Files'.
    ls_stats-local   = ls_info_local-size.
    ls_stats-remote  = ls_info_remote-size.
    APPEND ls_stats TO mt_stats.
    ls_stats-measure = 'Lines in ABAP Files'.
    ls_stats-local   = ls_info_local-line.
    ls_stats-remote  = ls_info_remote-line.
    APPEND ls_stats TO mt_stats.
    ls_stats-measure = 'Lines of Code in ABAP Files'.
    ls_stats-local   = ls_info_local-sloc.
    ls_stats-remote  = ls_info_remote-sloc.
    APPEND ls_stats TO mt_stats.

  ENDMETHOD.
 
 
  METHOD read_stats_state.

    DATA:
      lt_results TYPE zif_abapgit_definitions=>ty_results_tt,
      lv_state   TYPE c LENGTH 1,
      ls_stats   TYPE ty_stats.

    FIELD-SYMBOLS:
      <ls_result> LIKE LINE OF lt_results.

    lt_results = zcl_abapgit_repo_status=>calculate( mo_repo ).

    DO 3 TIMES.
      CLEAR ls_stats.

      CASE sy-index.
        WHEN 1.
          ls_stats-measure = 'Number of Modified Files'.
          lv_state = zif_abapgit_definitions=>c_state-modified.
        WHEN 2.
          ls_stats-measure = 'Number of Added Files'.
          lv_state = zif_abapgit_definitions=>c_state-added.
        WHEN 3.
          ls_stats-measure = 'Number of Deleted Files'.
          lv_state = zif_abapgit_definitions=>c_state-deleted.
      ENDCASE.

      LOOP AT lt_results ASSIGNING <ls_result>.
        IF <ls_result>-lstate = lv_state.
          ls_stats-local = ls_stats-local + 1.
        ENDIF.
        IF <ls_result>-rstate = lv_state AND mo_repo->has_remote_source( ) = abap_true.
          ls_stats-remote = ls_stats-remote + 1.
        ENDIF.
      ENDLOOP.

      APPEND ls_stats TO mt_stats.
    ENDDO.

  ENDMETHOD.
 
 
  METHOD zif_abapgit_gui_event_handler~on_event.
 
    IF ii_event->mv_action = zif_abapgit_definitions=>c_action-go_back.
      rs_handled-state = zcl_abapgit_gui=>c_event_state-go_back_to_bookmark.
    ENDIF.
 
  ENDMETHOD.
 
 
  METHOD zif_abapgit_gui_renderable~render.
 
    register_handlers( ).
 
    read_settings( ).
 
    CREATE OBJECT ri_html TYPE zcl_abapgit_html.
 
    ri_html->add( `<div class="repo">` ).
 
    ri_html->add( zcl_abapgit_gui_chunk_lib=>render_repo_top(
                    io_repo               = mo_repo
                    iv_show_commit        = abap_false
                    iv_interactive_branch = abap_true ) ).
 
    ri_html->add( mo_form->render( mo_form_data ) ).
 
    ri_html->add( `</div>` ).
 
  ENDMETHOD.
ENDCLASS.