---@diagnostic disable: param-type-mismatch

local misc = require("core.misc")
local map, auto = misc.map, misc.auto
local popup_opts, hover_opts, signature_opts, list_opts, location_opts

-- TODO: find a way to make the qflist current item be the one closest to the
-- cursor whenever we open it
local function on_list(opts)
  vim.fn.setqflist({}, "r", opts)
  if #opts.items > 1 then
    vim.cmd.copen()
  end
  vim.cmd(".cc! 1")
end

-- disable the default keybinds (they're bad)
for _, bind in ipairs({ "grn", "gra", "gri", "grr" }) do
  pcall(vim.keymap.del, "n", bind)
end

local M = {}

--- setup vim lsp options
function M.setup()
  -- options for different lsp functions
  popup_opts = { border = vim.g.border_style }
  hover_opts = vim.tbl_deep_extend("force", popup_opts, {})
  signature_opts = vim.tbl_deep_extend("force", popup_opts, {})
  list_opts = { on_list = on_list }
  location_opts = vim.tbl_deep_extend("force", list_opts, {})

  -- confgiure lsp
  vim.diagnostic.config {
    virtual_text = false,
    virtual_lines = {
      current_line = true
    },
    update_in_insert = false,
    underline = true,
    severity_sort = true,
    signs = {
      text = {
        [vim.diagnostic.severity.ERROR] = "x",
        [vim.diagnostic.severity.WARN] = "!",
        [vim.diagnostic.severity.INFO] = "i",
        [vim.diagnostic.severity.HINT] = "h"
      }
    }
  }

  -- set default capabilities and attach function
  vim.lsp.config['*'] = {
    capabilities = vim.lsp.protocol.make_client_capabilities()
  }

  -- make my attach function always run
  auto("LspAttach", {
    callback = function(event)
      local opts = { buffer = event.buf, nowait = true }

      -- LSP actions
      map("n", "K", function() vim.lsp.buf.hover(hover_opts) end, opts)
      map("n", "gd", function() vim.lsp.buf.definition(location_opts) end, opts)
      map("n", "gD", function() vim.lsp.buf.declaration(location_opts) end, opts)
      map("n", "gi", function() vim.lsp.buf.implementation(location_opts) end, opts)
      map("n", "gy", function() vim.lsp.buf.type_definition(location_opts) end, opts)
      map("n", "gr", function() vim.lsp.buf.references(nil, list_opts) end, opts)
      map("n", "<S-Tab>", function() vim.lsp.buf.signature_help(signature_opts) end, opts)
      map("n", { "<leader>r", "<F2>" }, vim.lsp.buf.rename, opts)
      map("n", { "gA", "<F4>" }, vim.lsp.buf.code_action, opts)

      -- Diagnostics
      map("n", "[d", function()
        vim.diagnostic.jump({ count = -1 })
      end, opts)
      map("n", "]d", function()
        vim.diagnostic.jump({ count = 1 })
      end, opts)
    end
  })
end

return M