--
-- ALE
--
-- Run linters only on save
vim.g.ale_lint_on_text_changed = 'never'
vim.g.ale_lint_on_insert_leave = 0

-- Include the linter name (e.g. 'hack' or 'hhast'), code, and message in errors
vim.g.ale_echo_msg_format = '[%linter%] %s'
vim.g.ale_linters = {
	hack = {'hack', 'hhast'},
	haskell = {"hlint"},
	javascript = {'eslint'},
	d = {'dmd'},
	php = {'phpcs', 'phpstan'},
	ruby = {'rubocop'},
	cpp = {},
}
vim.g.ale_ruby_rubocop_executable = 'bundle'
vim.g.ale_cpp_cc_options = '-std=c++17 -Wall'

vim.g.ale_open_list = 1
vim.g.ale_disable_lsp = 1

--
-- nvim-cmp
--
local cmp = require'cmp'

cmp.setup({
	snippet = {
		-- REQUIRED - you must specify a snippet engine
		expand = function(args)
			require'snippy'.expand_snippet(args.body)
		end,
	},
	mapping = {
		['<C-b>'] = cmp.mapping(cmp.mapping.scroll_docs(-4), { 'i', 'c' }),
		['<C-f>'] = cmp.mapping(cmp.mapping.scroll_docs(4), { 'i', 'c' }),
		['<C-Space>'] = cmp.mapping(cmp.mapping.complete(), { 'i', 'c' }),
		-- Specify `cmp.config.disable` if you want to remove the default `<C-y>` mapping.
		['<C-y>'] = cmp.config.disable,
		['<C-e>'] = cmp.mapping({
			i = cmp.mapping.abort(),
			c = cmp.mapping.close(),
		}),
		['<CR>'] = cmp.mapping.confirm({ select = false }),
	},
	sources = cmp.config.sources({
		{ name = 'nvim_lsp' },
		{ name = 'snippy' },
	}, {
		{ name = 'path' },
	}, {
		{ name = 'buffer' },
	}),
	view = {
		entries = 'native',
	},
})

-- Setup lspconfig.
local capabilities = require('cmp_nvim_lsp').default_capabilities(vim.lsp.protocol.make_client_capabilities())
capabilities.textDocument.foldingRange = {
    dynamicRegistration = false,
    lineFoldingOnly = true
}

--
-- Telescope
--
require('telescope').setup {
	extensions = {
		["ui-select"] = {
			require("telescope.themes").get_dropdown {
			}
		}
	}
}
require("telescope").load_extension("ui-select")

vim.api.nvim_set_keymap('n', '<leader>ff', "<cmd>lua require('telescope.builtin').find_files()<cr>",
	{ noremap = true, silent = true })
vim.api.nvim_set_keymap('n', '<leader>fg', "<cmd>lua require('telescope.builtin').live_grep()<cr>",
	{ noremap = true, silent = true })
vim.api.nvim_set_keymap('n', '<leader>fb', "<cmd>lua require('telescope.builtin').buffers()<cr>",
	{ noremap = true, silent = true })
vim.api.nvim_set_keymap('n', '<leader>fh', "<cmd>lua require('telescope.builtin').help_tags()<cr>",
	{ noremap = true, silent = true })

--
-- NvimTree
--
require('nvim-tree').setup {}

vim.api.nvim_set_keymap('n', '<C-n>', ':NvimTreeToggle<CR>', { noremap = true })
vim.api.nvim_set_keymap('n', '<leader>r', ':NvimTreeRefresh<CR>', { noremap = true })
vim.api.nvim_set_keymap('n', '<leader>n', ':NvimTreeFindFile<CR>', { noremap = true })

--
-- Lualine
--
require('lualine').setup {
	options = {
		theme = 'codedark'
	},
	extensions = {'quickfix', 'nvim-tree', 'fugitive'},
	sections = {
		lualine_c = {
			'filename'
		}
	}
}

--
-- Diffview.nvim
-- 
require('diffview').setup {}

--
-- Vista
--
vim.g.vista_default_executive = 'nvim_lsp'

--
-- nvim-ufo
--
vim.wo.foldcolumn = '1'
vim.wo.foldlevel = 99 -- feel free to decrease the value
vim.wo.foldenable = true

require('ufo').setup()

--
-- nvim-dap
--
vim.keymap.set('n', '<F5>', function() require('dap').continue() end)
vim.keymap.set('n', '<F10>', function() require('dap').step_over() end)
vim.keymap.set('n', '<F11>', function() require('dap').step_into() end)
vim.keymap.set('n', '<F12>', function() require('dap').step_out() end)
vim.keymap.set('n', '<Leader>b', function() require('dap').toggle_breakpoint() end)
vim.keymap.set('n', '<Leader>B', function() require('dap').set_breakpoint() end)
vim.keymap.set('n', '<Leader>lp', function() require('dap').set_breakpoint(nil, nil, vim.fn.input('Log point message: ')) end)
vim.keymap.set('n', '<Leader>dr', function() require('dap').repl.open() end)
vim.keymap.set('n', '<Leader>dl', function() require('dap').run_last() end)
vim.keymap.set({'n', 'v'}, '<Leader>dh', function()
	require('dap.ui.widgets').hover()
end)
vim.keymap.set({'n', 'v'}, '<Leader>dp', function()
	require('dap.ui.widgets').preview()
end)
vim.keymap.set('n', '<Leader>df', function()
	local widgets = require('dap.ui.widgets')
	widgets.centered_float(widgets.frames)
end)
vim.keymap.set('n', '<Leader>ds', function()
	local widgets = require('dap.ui.widgets')
	widgets.centered_float(widgets.scopes)
end)

local dap = require("dap")
dap.adapters.gdb = {
  type = "executable",
  command = "gdb",
  args = { "-i", "dap" }
}
dap.configurations.cpp = {
  {
    name = "Launch",
    type = "gdb",
    request = "launch",
    program = function()
      return vim.fn.input('Path to executable: ', vim.fn.getcwd() .. '/', 'file')
    end,
    cwd = "${workspaceFolder}",
    stopAtBeginningOfMainSubprogram = false,
  },
}

--
-- Vdebug
--
vim.g.vdebug_options = { port = '9000'  }

--
-- Treesitter
--
require'nvim-treesitter.configs'.setup {
	ensure_installed = { 'haskell', 'php', 'lua' },
	highlight = {
		enable = true,
		additional_vim_regex_highlighting = false
	},
	indent = {
		enable = true
	}
}