local helpers = require('test.functional.helpers')(after_each)
local Screen = require('test.functional.ui.screen')
local clear, command, feed = helpers.clear, helpers.command, helpers.feed
local eq, funcs, meths = helpers.eq, helpers.funcs, helpers.meths

describe('global statusline', function()
  local screen

  before_each(function()
    clear()
    screen = Screen.new(60, 16)
    screen:attach()
    command('set laststatus=3')
    command('set ruler')
  end)

  it('works', function()
    screen:expect{grid=[[
      ^                                                            |
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {2:[No Name]                                 0,0-1          All}|
                                                                  |
    ]], attr_ids={
      [1] = {bold = true, foreground = Screen.colors.Blue1};
      [2] = {bold = true, reverse = true};
    }}

    feed('i<CR><CR>')
    screen:expect{grid=[[
                                                                  |
                                                                  |
      ^                                                            |
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {2:[No Name] [+]                             3,1            All}|
      {3:-- INSERT --}                                                |
    ]], attr_ids={
      [1] = {bold = true, foreground = Screen.colors.Blue};
      [2] = {bold = true, reverse = true};
      [3] = {bold = true};
    }}
  end)

  it('works with splits', function()
    command('vsplit | split | vsplit | vsplit | wincmd l | split | 2wincmd l | split')
    screen:expect{grid=[[
                          │                │ │^                    |
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }├────────────────┤{2:~}│{2:~                   }|
      {2:~                   }│                │{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}├────────────────────|
      {2:~                   }│{2:~               }│{2:~}│                    |
      ────────────────────┴────────────────┴─┤{2:~                   }|
                                             │{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {3:[No Name]                                 0,0-1          All}|
                                                                  |
    ]], attr_ids={
      [1] = {reverse = true};
      [2] = {bold = true, foreground = Screen.colors.Blue1};
      [3] = {bold = true, reverse = true};
    }}
  end)

  it('works when switching between values of laststatus', function()
    command('set laststatus=1')
    screen:expect{grid=[[
      ^                                                            |
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
                                                0,0-1         All |
    ]], attr_ids={
      [1] = {foreground = Screen.colors.Blue, bold = true};
    }}

    command('set laststatus=3')
    screen:expect{grid=[[
      ^                                                            |
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {1:~                                                           }|
      {2:[No Name]                                 0,0-1          All}|
                                                                  |
    ]], attr_ids={
      [1] = {foreground = Screen.colors.Blue, bold = true};
      [2] = {reverse = true, bold = true};
    }}

    command('vsplit | split | vsplit | vsplit | wincmd l | split | 2wincmd l | split')
    command('set laststatus=2')
    screen:expect{grid=[[
                          │                │ │^                    |
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{1:< Name] 0,0-1   }│{2:~}│{2:~                   }|
      {2:~                   }│                │{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{3:<No Name] 0,0-1  All}|
      {2:~                   }│{2:~               }│{2:~}│                    |
      {1:<No Name] 0,0-1  All < Name] 0,0-1    <}│{2:~                   }|
                                             │{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {1:[No Name]            0,0-1          All <No Name] 0,0-1  All}|
                                                                  |
    ]], attr_ids={
      [1] = {reverse = true};
      [2] = {foreground = Screen.colors.Blue, bold = true};
      [3] = {reverse = true, bold = true};
    }}

    command('set laststatus=3')
    screen:expect{grid=[[
                          │                │ │^                    |
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }├────────────────┤{2:~}│{2:~                   }|
      {2:~                   }│                │{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}├────────────────────|
      {2:~                   }│{2:~               }│{2:~}│                    |
      ────────────────────┴────────────────┴─┤{2:~                   }|
                                             │{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {3:[No Name]                                 0,0-1          All}|
                                                                  |
    ]], attr_ids={
      [1] = {reverse = true};
      [2] = {foreground = Screen.colors.Blue, bold = true};
      [3] = {reverse = true, bold = true};
    }}

    command('set laststatus=0')
    screen:expect{grid=[[
                          │                │ │^                    |
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{1:< Name] 0,0-1   }│{2:~}│{2:~                   }|
      {2:~                   }│                │{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{3:<No Name] 0,0-1  All}|
      {2:~                   }│{2:~               }│{2:~}│                    |
      {1:<No Name] 0,0-1  All < Name] 0,0-1    <}│{2:~                   }|
                                             │{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {2:~                                      }│{2:~                   }|
                                                0,0-1         All |
    ]], attr_ids={
      [1] = {reverse = true};
      [2] = {foreground = Screen.colors.Blue, bold = true};
      [3] = {reverse = true, bold = true};
    }}

    command('set laststatus=3')
    screen:expect{grid=[[
                          │                │ │^                    |
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }├────────────────┤{2:~}│{2:~                   }|
      {2:~                   }│                │{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}│{2:~                   }|
      {2:~                   }│{2:~               }│{2:~}├────────────────────|
      {2:~                   }│{2:~               }│{2:~}│                    |
      ────────────────────┴────────────────┴─┤{2:~                   }|
                                             │{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {2:~                                      }│{2:~                   }|
      {3:[No Name]                                 0,0-1          All}|
                                                                  |
    ]], attr_ids={
      [1] = {reverse = true};
      [2] = {foreground = Screen.colors.Blue, bold = true};
      [3] = {reverse = true, bold = true};
    }}
  end)

  it('win_move_statusline() can reduce cmdheight to 1', function()
    eq(1, meths.get_option('cmdheight'))
    funcs.win_move_statusline(0, -1)
    eq(2, meths.get_option('cmdheight'))
    funcs.win_move_statusline(0, -1)
    eq(3, meths.get_option('cmdheight'))
    funcs.win_move_statusline(0, 1)
    eq(2, meths.get_option('cmdheight'))
    funcs.win_move_statusline(0, 1)
    eq(1, meths.get_option('cmdheight'))
  end)

  it('mouse dragging can reduce cmdheight to 1', function()
    command('set mouse=a')
    meths.input_mouse('left', 'press', '', 0, 14, 10)
    eq(1, meths.get_option('cmdheight'))
    meths.input_mouse('left', 'drag', '', 0, 13, 10)
    eq(2, meths.get_option('cmdheight'))
    meths.input_mouse('left', 'drag', '', 0, 12, 10)
    eq(3, meths.get_option('cmdheight'))
    meths.input_mouse('left', 'drag', '', 0, 13, 10)
    eq(2, meths.get_option('cmdheight'))
    meths.input_mouse('left', 'drag', '', 0, 14, 10)
    eq(1, meths.get_option('cmdheight'))
  end)
end)