use 'ray-x/go.nvim'
use 'ray-x/guihua.lua' -- recommended if need floating window support
use 'neovim/nvim-lspconfig'
use 'nvim-treesitter/nvim-treesitter'

{
  "ray-x/go.nvim",
  dependencies = {  -- optional packages
    "ray-x/guihua.lua",
    "neovim/nvim-lspconfig",
    "nvim-treesitter/nvim-treesitter",
  },
  config = function()
    require("go").setup()
  end,
  event = {"CmdlineEnter"},
  ft = {"go", 'gomod'},
  build = ':lua require("go.install").update_all_sync()' -- if you need to install/update all binaries
}

lua <<EOF
local format_sync_grp = vim.api.nvim_create_augroup("GoFormat", {})
vim.api.nvim_create_autocmd("BufWritePre", {
  pattern = "*.go",
  callback = function()
   require('go.format').goimport()
  end,
  group = format_sync_grp,
})

EOF

require('go').setup()

require("go.format").gofmt()  -- gofmt only
require("go.format").goimport()  -- goimport + gofmt

-- Run gofmt on save

local format_sync_grp = vim.api.nvim_create_augroup("GoFormat", {})
vim.api.nvim_create_autocmd("BufWritePre", {
  pattern = "*.go",
  callback = function()
   require('go.format').gofmt()
  end,
  group = format_sync_grp,
})

-- Run gofmt + goimport on save

local format_sync_grp = vim.api.nvim_create_augroup("GoImport", {})
vim.api.nvim_create_autocmd("BufWritePre", {
  pattern = "*.go",
  callback = function()
   require('go.format').goimport()
  end,
  group = format_sync_grp,
})

 lua.require('go.comment').gen() -- or your faviourite key binding and setup placeholder "no more complaint ;P"

local capabilities = require('cmp_nvim_lsp').default_capabilities(vim.lsp.protocol.make_client_capabilities())
require('go').setup({
  -- other setups ....
  lsp_cfg = {
    capabilities = capabilities,
    -- other setups
  },
})

require('go').setup({

  disable_defaults = false, -- true|false when true set false to all boolean settings and replace all table
  -- settings with {}
  go='go', -- go command, can be go[default] or go1.18beta1
  goimport='gopls', -- goimport command, can be gopls[default] or goimport
  fillstruct = 'gopls', -- can be nil (use fillstruct, slower) and gopls
  gofmt = 'gofumpt', --gofmt cmd,
  max_line_len = 128, -- max line length in golines format, Target maximum line length for golines
  tag_transform = false, -- can be transform option("snakecase", "camelcase", etc) check gomodifytags for details and more options
  tag_options = 'json=omitempty', -- sets options sent to gomodifytags, i.e., json=omitempty
  gotests_template = "", -- sets gotests -template parameter (check gotests for details)
  gotests_template_dir = "", -- sets gotests -template_dir parameter (check gotests for details)
  comment_placeholder = '' ,  -- comment_placeholder your cool placeholder e.g. 󰟓       
  icons = {breakpoint = '🧘', currentpos = '🏃'},  -- setup to `false` to disable icons setup
  verbose = false,  -- output loginf in messages
  lsp_cfg = false, -- true: use non-default gopls setup specified in go/lsp.lua
                   -- false: do nothing
                   -- if lsp_cfg is a table, merge table with with non-default gopls setup in go/lsp.lua, e.g.
                   --   lsp_cfg = {settings={gopls={matcher='CaseInsensitive', ['local'] = 'your_local_module_path', gofumpt = true }}}
  lsp_gofumpt = false, -- true: set default gofmt in gopls format to gofumpt
  lsp_on_attach = nil, -- nil: use on_attach function defined in go/lsp.lua,
                       --      when lsp_cfg is true
                       -- if lsp_on_attach is a function: use this function as on_attach function for gopls
  lsp_keymaps = true, -- set to false to disable gopls/lsp keymap
  lsp_codelens = true, -- set to false to disable codelens, true by default, you can use a function
  -- function(bufnr)
  --    vim.api.nvim_buf_set_keymap(bufnr, "n", "<space>F", "<cmd>lua vim.lsp.buf.formatting()<CR>", {noremap=true, silent=true})
  -- end
  -- to setup a table of codelens
  lsp_diag_hdlr = true, -- hook lsp diag handler
  lsp_diag_underline = true,
  -- virtual text setup
  lsp_diag_virtual_text = { space = 0, prefix = '■' },
  lsp_diag_signs = true,
  lsp_diag_update_in_insert = false,
  lsp_document_formatting = true,
  -- set to true: use gopls to format
  -- false if you want to use other formatter tool(e.g. efm, nulls)
 lsp_inlay_hints = {
    enable = true,
    -- Only show inlay hints for the current line
    only_current_line = false,
    -- Event which triggers a refersh of the inlay hints.
    -- You can make this "CursorMoved" or "CursorMoved,CursorMovedI" but
    -- not that this may cause higher CPU usage.
    -- This option is only respected when only_current_line and
    -- autoSetHints both are true.
    only_current_line_autocmd = "CursorHold",
    -- whether to show variable name before type hints with the inlay hints or not
    -- default: false
    show_variable_name = true,
    -- prefix for parameter hints
    parameter_hints_prefix = "󰊕 ",
    show_parameter_hints = true,
    -- prefix for all the other hints (type, chaining)
    other_hints_prefix = "=> ",
    -- whether to align to the lenght of the longest line in the file
    max_len_align = false,
    -- padding from the left if max_len_align is true
    max_len_align_padding = 1,
    -- whether to align to the extreme right or not
    right_align = false,
    -- padding from the right if right_align is true
    right_align_padding = 6,
    -- The color of the hints
    highlight = "Comment",
  },
  gopls_cmd = nil, -- if you need to specify gopls path and cmd, e.g {"/home/user/lsp/gopls", "-logfile","/var/log/gopls.log" }
  gopls_remote_auto = true, -- add -remote=auto to gopls
  gocoverage_sign = "█",
  sign_priority = 5, -- change to a higher number to override other signs
  dap_debug = true, -- set to false to disable dap
  dap_debug_keymap = true, -- true: use keymap for debugger defined in go/dap.lua
                           -- false: do not use keymap in go/dap.lua.  you must define your own.
                           -- windows: use visual studio keymap
  dap_debug_gui = {}, -- bool|table put your dap-ui setup here set to false to disable
  dap_debug_vt = { enabled_commands = true, all_frames = true }, -- bool|table put your dap-virtual-text setup here set to false to disable

  dap_port = 38697, -- can be set to a number, if set to -1 go.nvim will pickup a random port
  dap_timeout = 15, --  see dap option initialize_timeout_sec = 15,
  dap_retries = 20, -- see dap option max_retries
  build_tags = "tag1,tag2", -- set default build tags
  textobjects = true, -- enable default text jobects through treesittter-text-objects
  test_runner = 'go', -- one of {`go`, `richgo`, `dlv`, `ginkgo`, `gotestsum`}
  verbose_tests = true, -- set to add verbose flag to tests deprecated, see '-v' option
  run_in_floaterm = false, -- set to true to run in float window. :GoTermClose closes the floatterm
                           -- float term recommend if you use richgo/ginkgo with terminal color

  floaterm = {   -- position
    posititon = 'auto', -- one of {`top`, `bottom`, `left`, `right`, `center`, `auto`}
    width = 0.45, -- width of float window if not auto
    height = 0.98, -- height of float window if not auto
  },
  trouble = false, -- true: use trouble to open quickfix
  test_efm = false, -- errorfomat for quickfix, default mix mode, set to true will be efm only
  luasnip = false, -- enable included luasnip snippets. you can also disable while add lua/snips folder to luasnip load
  --  Do not enable this if you already added the path, that will duplicate the entries
  on_jobstart = function(cmd) _=cmd end, -- callback for stdout
  on_stdout = function(err, data) _, _ = err, data end, -- callback when job started
  on_stderr = function(err, data)  _, _ = err, data  end, -- callback for stderr
  on_exit = function(code, signal, output)  _, _, _ = code, signal, output  end, -- callback for jobexit, output : string
  iferr_vertical_shift = 4 -- defines where the cursor will end up vertically from the begining of if err statement 
})

  vim.cmd("autocmd FileType go nmap <Leader><Leader>l GoLint")
  vim.cmd("autocmd FileType go nmap <Leader>gc :lua require('go.comment').gen()")

-- .gonvim/init.lua project config
vim.g.null_ls_disable = true

return {
  go = "go", -- set to go1.18beta1 if necessary
  goimport = "gopls", -- if set to 'gopls' will use gopls format, also goimport
  fillstruct = "gopls",
  gofmt = "gofumpt", -- if set to gopls will use gopls format
  max_line_len = 120
  null_ls_document_formatting_disable = true
}

  require "nvim-treesitter.configs".setup {
    incremental_selection = {
      enable = enable,
      keymaps = {
        -- mappings for incremental selection (visual mappings)
        init_selection = "gnn", -- maps in normal mode to init the node/scope selection
        node_incremental = "grn", -- increment to the upper named parent
        scope_incremental = "grc", -- increment to the upper scope (as defined in locals.scm)
        node_decremental = "grm" -- decrement to the previous node
      }
    },

    textobjects = {
      -- syntax-aware textobjects
      enable = enable,
      lsp_interop = {
        enable = enable,
        peek_definition_code = {
          ["DF"] = "@function.outer",
          ["DF"] = "@class.outer"
        }
      },
      keymaps = {
        ["iL"] = {
          -- you can define your own textobjects directly here
          go = "(function_definition) @function",
        },
        -- or you use the queries from supported languages with textobjects.scm
        ["af"] = "@function.outer",
        ["if"] = "@function.inner",
        ["aC"] = "@class.outer",
        ["iC"] = "@class.inner",
        ["ac"] = "@conditional.outer",
        ["ic"] = "@conditional.inner",
        ["ae"] = "@block.outer",
        ["ie"] = "@block.inner",
        ["al"] = "@loop.outer",
        ["il"] = "@loop.inner",
        ["is"] = "@statement.inner",
        ["as"] = "@statement.outer",
        ["ad"] = "@comment.outer",
        ["am"] = "@call.outer",
        ["im"] = "@call.inner"
      },
      move = {
        enable = enable,
        set_jumps = true, -- whether to set jumps in the jumplist
        goto_next_start = {
          ["]m"] = "@function.outer",
          ["]]"] = "@class.outer"
        },
        goto_next_end = {
          ["]M"] = "@function.outer",
          ["]["] = "@class.outer"
        },
        goto_previous_start = {
          ["[m"] = "@function.outer",
          ["[["] = "@class.outer"
        },
        goto_previous_end = {
          ["[M"] = "@function.outer",
          ["[]"] = "@class.outer"
        }
      },
      select = {
        enable = enable,
        keymaps = {
          -- You can use the capture groups defined in textobjects.scm
          ["af"] = "@function.outer",
          ["if"] = "@function.inner",
          ["ac"] = "@class.outer",
          ["ic"] = "@class.inner",
          -- Or you can define your own textobjects like this
          ["iF"] = {
            python = "(function_definition) @function",
            cpp = "(function_definition) @function",
            c = "(function_definition) @function",
            java = "(method_declaration) @function",
            go = "(method_declaration) @function"
          }
        }
      },
      swap = {
        enable = enable,
        swap_next = {
          ["<leader>a"] = "@parameter.inner"
        },
        swap_previous = {
          ["<leader>A"] = "@parameter.inner"
        }
      }
    }
  }

require("mason").setup()
require("mason-lspconfig").setup()
require('lspconfig').gopls.setup({
  gopls_cmd = {install_root_dir .. '/go/gopls'},
  fillstruct = 'gopls',
  dap_debug = true,
  dap_debug_gui = true
})

-- setup your go.nvim
-- make sure lsp_cfg is disabled
require("mason").setup()
require("mason-lspconfig").setup()
require('go').setup{
  lsp_cfg = false
  -- other setups...
}
local cfg = require'go.lsp'.config() -- config() return the go.nvim gopls setup

require('lspconfig').gopls.setup(cfg)

local null_ls = require("null-ls")
local sources = {
  null_ls.builtins.diagnostics.revive,
  null_ls.builtins.formatting.golines.with({
    extra_args = {
      "--max-len=180",
      "--base-formatter=gofumpt",
    },
  })
}
-- for go.nvim
local gotest = require("go.null_ls").gotest()
local gotest_codeaction = require("go.null_ls").gotest_action()
local golangci_lint = require("go.null_ls").golangci_lint()
table.insert(sources, gotest)
table.insert(sources, golangci_lint)
table.insert(sources, gotest_codeaction)
null_ls.setup({ sources = sources, debounce = 1000, default_timeout = 5000 })

-- alternatively
null_ls.register(gotest)