# MIT License
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

-- Adds git related signs to the gutter, as well as utilities for managing changes
-- NOTE: gitsigns is already included in init.lua but contains only the base
-- config. This will add also the recommended keymaps.

return {
  {
    'lewis6991/gitsigns.nvim',
    opts = {
      on_attach = function(bufnr)
        local gitsigns = require('gitsigns')

        local function map(mode, l, r, opts)
          opts = opts or {}
          opts.buffer = bufnr
          vim.keymap.set(mode, l, r, opts)
        end

        -- Navigation
        map('n', ']c', function()
          if vim.wo.diff then
            vim.cmd.normal({ ']c', bang = true })
          else
            gitsigns.nav_hunk('next')
          end
        end, { desc = 'Jump to next git [c]hange' })

        map('n', '[c', function()
          if vim.wo.diff then
            vim.cmd.normal({ '[c', bang = true })
          else
            gitsigns.nav_hunk('prev')
          end
        end, { desc = 'Jump to previous git [c]hange' })

        -- Actions
        -- visual mode
        map('v', '<leader>hs', function()
          gitsigns.stage_hunk({ vim.fn.line('.'), vim.fn.line('v') })
        end, { desc = 'git [s]tage hunk' })
        map('v', '<leader>hr', function()
          gitsigns.reset_hunk({ vim.fn.line('.'), vim.fn.line('v') })
        end, { desc = 'git [r]eset hunk' })
        -- normal mode
        map('n', '<leader>hs', gitsigns.stage_hunk, { desc = 'git [s]tage hunk' })
        map('n', '<leader>hr', gitsigns.reset_hunk, { desc = 'git [r]eset hunk' })
        map('n', '<leader>hS', gitsigns.stage_buffer, { desc = 'git [S]tage buffer' })
        map('n', '<leader>hu', gitsigns.stage_hunk, { desc = 'git [u]ndo stage hunk' })
        map('n', '<leader>hR', gitsigns.reset_buffer, { desc = 'git [R]eset buffer' })
        map('n', '<leader>hp', gitsigns.preview_hunk, { desc = 'git [p]review hunk' })
        map('n', '<leader>hb', gitsigns.blame_line, { desc = 'git [b]lame line' })
        map('n', '<leader>hd', gitsigns.diffthis, { desc = 'git [d]iff against index' })
        map('n', '<leader>hD', function()
          gitsigns.diffthis('@')
        end, { desc = 'git [D]iff against last commit' })
        -- Toggles
        map('n', '<leader>tb', gitsigns.toggle_current_line_blame, { desc = '[T]oggle git show [b]lame line' })
        map('n', '<leader>tD', gitsigns.preview_hunk_inline, { desc = '[T]oggle git show [D]eleted' })
      end,
    },
  },
}