-- Set <space> as the leader key
-- See `:help mapleader`
--  NOTE: Must happen before plugins are loaded (otherwise wrong leader will be used)
vim.g.mapleader = ' '
vim.g.maplocalleader = ' '

-- [[ Basic Keymaps ]]
--  See `:help vim.keymap.set()`

-- Clear highlights on search when pressing <Esc> in normal mode
-- See `:help hlsearch`
vim.keymap.set('n', '<Esc>', '<cmd>nohlsearch<CR>')
-- Delete entire word with Alt+Backspace
vim.keymap.set('i', '<A-BS>', '<C-W>')

-- Diagnostic keymaps
vim.keymap.set('n', '[d', vim.diagnostic.goto_next, { desc = 'Go to next [D]iagnostic message' })
vim.keymap.set('n', ']d', vim.diagnostic.goto_prev, { desc = 'Go to previous [D]iagnostic message' })
vim.keymap.set('n', '<leader>e', vim.diagnostic.open_float, { desc = 'Show diagnostic [E]rror message' })
vim.keymap.set('n', '<leader>q', vim.diagnostic.setloclist, { desc = 'Open diagnostic [Q]uickfix list' })

-- Exit terminal mode in the builtin terminal with a shortcut that is a bit easier
-- for people to discover. Otherwise, you normally need to press <C-\><C-n>, which
-- is not what someone will guess without a bit more experience.
--
-- NOTE: This won't work in all terminal emulators/tmux/etc. Try your own mapping
-- or just use <C-\><C-n> to exit terminal mode
vim.keymap.set('t', '<Esc><Esc>', '<C-\\><C-n>', { desc = 'Exit terminal mode' })

-- TIP: Disable arrow keys in normal mode
vim.keymap.set('n', '<left>', '<cmd>echo "Use h to move!!"<CR>')
vim.keymap.set('n', '<right>', '<cmd>echo "Use l to move!!"<CR>')
vim.keymap.set('n', '<up>', '<cmd>echo "Use k to move!!"<CR>')
vim.keymap.set('n', '<down>', '<cmd>echo "Use j to move!!"<CR>')

-- Keybinds to make split navigation easier.
--  Use CTRL+<hjkl> to switch between windowsC
--
--  See `:help wincmd` for a list of all window commands
vim.keymap.set('n', '<C-h>', '<C-w><C-h>', { desc = 'Move focus to the left window' })
vim.keymap.set('n', '<C-l>', '<C-w><C-l>', { desc = 'Move focus to the right window' })
vim.keymap.set('n', '<C-j>', '<C-w><C-j>', { desc = 'Move focus to the lower window' })
vim.keymap.set('n', '<C-k>', '<C-w><C-k>', { desc = 'Move focus to the upper window' })

-- Window management
vim.keymap.set('n', '<leader>sv', '<C-w>v', { desc = '[S]plit window [V]ertically' })
vim.keymap.set('n', '<leader>sh', '<C-w>s', { desc = '[S]plit window [H]orizontally' })
vim.keymap.set('n', '<leader>se', '<C-w>=', { desc = 'Make [S]plit [E]qual size' })
vim.keymap.set('n', '<leader>sx', '<cmd>close<CR>', { desc = 'Current [S]plit [X]Close' })

-- Tab management
vim.keymap.set('n', '<leader>to', '<cmd>tabnew<CR>', { desc = 'Open new tab' }) -- open new tab
vim.keymap.set('n', '<leader>tx', '<cmd>tabclose<CR>', { desc = 'Close current tab' }) -- close current tab
vim.keymap.set('n', '<leader>tn', '<cmd>tabn<CR>', { desc = 'Go to next tab' }) --  go to next tab
vim.keymap.set('n', '<leader>tp', '<cmd>tabp<CR>', { desc = 'Go to previous tab' }) --  go to previous tab
vim.keymap.set('n', '<leader>tf', '<cmd>tabnew %<CR>', { desc = 'Open current buffer in new tab' }) --  move current buffer to new tab

-- Gopher plugin keymaps
vim.keymap.set('n', '<leader>if', '<cmd> GoIfErr <CR>', { desc = 'Add if err != nil snippet' })

-- Borrowed from my VS Code settings for better Vim navigations
vim.keymap.set('n', '<leader>l', '$', { desc = 'Move to end of the line with leader + l' })
vim.keymap.set('n', '<leader>h', '_', { desc = 'Move to first character of the line with leader + h' })