local diffview = require('diffview')
local MiniDiff = require('mini.diff')
local util = require('user.util')

diffview.setup({
  use_icons = false,
  signs = {
    fold_closed = ' ',
    fold_open = '-',
  }
})

-- shows added/removed/changed lines
MiniDiff.setup({
  -- keymap #bracketed
  -- ]h / [h - navigate by hunks
  view = {
    style = 'sign',
    signs = {
      delete = '_',
    },
  },
  source = {
    MiniDiff.gen_source.git(),
    -- handle fugitive paths
    {
      name = 'fugitive',
      attach = function(buf_id)
        local resolved = util.resolve_git_path(buf_id)
        if not resolved or resolved.path == '' then
          return false
        end

        local source = vim.fn.FugitiveFind(string.format('%s~1:%s', resolved.commit, resolved.path))
        local text = vim.fn['fugitive#readfile'](source)
        MiniDiff.set_ref_text(buf_id, text)
      end
    }
  }
})

-- open status in current split without special flag (so navigating away closes it)
-- https://github.com/tpope/vim-fugitive/issues/1296
vim.keymap.set('n', '<Leader>gs', '<cmd>Gedit :<CR>')
vim.keymap.set('n', '<Leader>gb', '<cmd>Telescope git_branches<CR>')
vim.keymap.set('n', '<Leader>gd', MiniDiff.toggle_overlay)
vim.keymap.set('n', '<Leader>gvi', '<cmd>DiffviewOpen<CR>')
vim.keymap.set('n', '<Leader>gvr', '<cmd>DiffviewFileHistory --range=origin..HEAD<CR>')

-- conflicts navigation #bracketed
vim.keymap.set('n', '[x', '?^[<lt>=>]\\{7}<CR>')
vim.keymap.set('n', ']x', '/^[<lt>=>]\\{7}<CR>')