-- Install Lazy package
local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
    vim.fn.system({
        "git",
        "clone",
        "--filter=blob:none",
        "https://github.com/folke/lazy.nvim.git",
        "--branch=stable", -- latest stable release
        lazypath,
    })
end
vim.opt.rtp:prepend(lazypath)

-- Lazy setup
require("lazy").setup({
    -- Config
    defaults = {
        lazy = true
    },

    -- Packages
    "asolkar/vim-color-molokini",
    "navarasu/onedark.nvim",
    "kyazdani42/nvim-web-devicons",
    "nvim-lualine/lualine.nvim",
    "preservim/nerdtree",
    "tpope/vim-fugitive",
    "mhinz/vim-signify",
    "lewis6991/gitsigns.nvim",
    "mg979/vim-visual-multi",
    "jiangmiao/auto-pairs",
    "luochen1990/rainbow",
    "tpope/vim-surround",
    "nathanaelkane/vim-indent-guides",
    -- "https://github.com/intel-sandbox/vim-iosf.git", -- intel
    -- "https://github.com/intel-sandbox/vim-pcietrk", -- intel
    "vhda/verilog_systemverilog.vim",
    {
        'nvim-telescope/telescope.nvim', tag = '0.1.2',
        dependencies = { 'nvim-lua/plenary.nvim' }
    },
    {
        'nvim-telescope/telescope-fzf-native.nvim',
        -- build = 'cmake -S. -Bbuild -DCMAKE_BUILD_TYPE=Release && cmake --build build --config Release && cmake --install build --prefix build'
        build = 'make'
    }
})

-- LuaLine
require('lualine').setup {
    options = {
        icons_enabled = false,
        theme = 'nightfly',
        section_separators = { left = '', right = '' },
        component_separators = { left = '', right = '' }
    },
    sections = {
        lualine_c = {
            {
                'filename',
                path = 2,
                symbols = {
                    modified = ' ●',        -- Text to show when the buffer is modified
                    alternate_file = ' ↻',  -- Text to show to identify the alternate file
                    directory =  ' ▶',      -- Text to show when the buffer is a directory
                },
            }
        }
    },
    tabline = {
        lualine_a = {
        {
            'buffers',
            show_filename_only = true,          -- Shows shortened relative path when set to false.
            hide_filename_extension = false,    -- Hide filename extension when set to true.
            show_modified_status = true,        -- Shows indicator when the buffer is modified.

            mode = 4, -- 0: Shows buffer name
                      -- 1: Shows buffer index
                      -- 2: Shows buffer name + buffer index
                      -- 3: Shows buffer number
                      -- 4: Shows buffer name + buffer number

            max_length = vim.o.columns * 2 / 3, -- Maximum width of buffers component,
                                                -- it can also be a function that returns
                                                -- the value of `max_length` dynamically.

            symbols = {
                modified = ' ●',        -- Text to show when the buffer is modified
                alternate_file = ' ↻',  -- Text to show to identify the alternate file
                directory =  ' ▶',      -- Text to show when the buffer is a directory
            },
        }}
    }
}

-- -- Gitsigns
-- -- See `:help gitsigns.txt`
-- require('gitsigns').setup {
--     signs = {
--         add = { text = '+' },
--         change = { text = '~' },
--         delete = { text = '_' },
--         topdelete = { text = '‾' },
--         changedelete = { text = '~' },
--     },
-- }

-- Onedark theme
require('onedark').setup {
    style = 'deep'
}
require('onedark').load()

-- [[ Setting options ]]
-- See `:help vim.o`

if vim.g.neovide then
    vim.o.guifont = "Iosevka Term:h12"
    vim.g.neovide_scale_factor = 1.0
end

-- Set highlight on search
vim.o.hlsearch = true

-- Highlight problematic whitespace
vim.o.list = true
vim.opt.listchars = { tab = '▶ ', trail = '●', extends = '#', nbsp = '.' }

-- Whitespace/tab management
vim.opt.expandtab = true
vim.opt.tabstop = 4
vim.opt.softtabstop = 4
vim.opt.shiftwidth = 4

-- Make line numbers default
vim.wo.number = true
vim.opt.colorcolumn = '120'
vim.opt.cursorline = true

-- Enable mouse mode
vim.o.mouse = 'a'

-- Enable break indent
vim.o.breakindent = true
vim.o.wrap = false

-- Save undo history
vim.o.undofile = true

-- Case insensitive searching UNLESS /C or capital in search
vim.o.ignorecase = true
vim.o.smartcase = true

-- Decrease update time
vim.o.updatetime = 250
vim.wo.signcolumn = 'yes'

-- Set colorscheme
vim.o.termguicolors = true
-- vim.cmd [[colorscheme molokini]]
-- vim.cmd.colorscheme('molokini')
vim.cmd.colorscheme('onedark')

-- Set completeopt to have a better completion experience
vim.o.completeopt = 'menuone,noselect'

-- Do not auto read file when in focus
vim.o.autoread = false

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

-- Keymaps for better default experience
-- See `:help vim.keymap.set()`
vim.keymap.set({ 'n', 'v' }, '<Space>', '<Nop>', { silent = true })

-- Remap for dealing with word wrap
vim.keymap.set('n', 'k', "v:count == 0 ? 'gk' : 'k'", { expr = true, silent = true })
vim.keymap.set('n', 'j', "v:count == 0 ? 'gj' : 'j'", { expr = true, silent = true })

vim.api.nvim_set_keymap('n',    '<c-z>',        ':bn<CR>',          { noremap = 1 })
vim.api.nvim_set_keymap('v',    '<c-z>',        ':bn<CR>',          { noremap = 1 })
vim.api.nvim_set_keymap('n',    '<c-x>',        ':bp<CR>',          { noremap = 1 })
vim.api.nvim_set_keymap('n',    '<F5>',         ':e<CR>',           { noremap = 1 })
vim.api.nvim_set_keymap('n',    '<F6>',         '<C-W>w',           { noremap = 1 })
vim.api.nvim_set_keymap('n',    '<F18>',        '<C-W>W',           { noremap = 1 }) -- S-F6 (F18 defined in ST's config.h)
vim.api.nvim_set_keymap('n',    '<F7>',         '<C-W>o',           { noremap = 1 })
vim.api.nvim_set_keymap('n',    '<F8>',         '<C-W>v',           { noremap = 1 })
vim.api.nvim_set_keymap('n',    '<F20>',        '<C-W>s',           { noremap = 1 }) -- S-F8 (F20 defined in ST's config.h)
vim.api.nvim_set_keymap('n',    '<F35>',        ':confirm bd<CR>',  { noremap = 1 }) -- C-F11 (F35 defined in ST's config.h)
vim.api.nvim_set_keymap('v',    '<LeftRelease>','"*ygv',            { noremap = 1 }) -- Copy selection to clipboard
vim.api.nvim_set_keymap('v',    '<2-LeftRelease>','"*ygv',          { noremap = 1 }) -- Copy word selection to clipboard
vim.api.nvim_set_keymap('v',    '<3-LeftRelease>','"*ygv',          { noremap = 1 }) -- Copy line selection to clipboard
vim.api.nvim_set_keymap('v',    '<4-LeftRelease>','"*ygv',          { noremap = 1 }) -- Copy column selection to clipboard
vim.api.nvim_set_keymap('v',    '<c-r>',        '"hy/<C-r>h<cr>',   { noremap = 1 }) -- Search selected text
vim.api.nvim_set_keymap('n',    '<c-Space>',    'za',               { noremap = 1 }) -- Toggle fold
vim.api.nvim_set_keymap('v',    '<',            '<gv',              { noremap = 1 }) -- Preserve selection after left indent
vim.api.nvim_set_keymap('v',    '>',            '>gv',              { noremap = 1 }) -- Preserve selection after right indent
vim.api.nvim_set_keymap('v',    'Q',            'gqa',              { noremap = 1 }) -- Reflow visually highlighted lines with Q
vim.api.nvim_set_keymap('n',    'Q',            'gq',               { noremap = 1 }) -- Reflow text

-- Insert time/date stamps
vim.api.nvim_set_keymap('n',    '<leader>td',   'i<C-R>=strftime(\'%Y/%m/%d\')<CR><Esc>',          { noremap = 1 }) -- 'Insert [T]imestamp - [d]ate'
vim.api.nvim_set_keymap('n',    '<leader>tt',   'i<C-R>=strftime(\'%Y/%m/%d %H:%M:%S\')<CR><Esc>', { noremap = 1 }) -- 'Insert [T]imestamp - date[t]ime'

vim.g.rainbow_active            = 1 -- 0 if you want to enable it later via :RainbowToggle

-- vim.g.iosftrk_folddisable       = 1 -- intel
-- vim.g.iosfsbtrk_folddisable     = 1 -- intel
-- vim.g.pcietrk_folddisable       = 1 -- intel

-- [[ Highlight on yank ]]
-- See `:help vim.highlight.on_yank()`
local highlight_group = vim.api.nvim_create_augroup('YankHighlight', { clear = true })
vim.api.nvim_create_autocmd('TextYankPost', {
    callback = function()
        vim.highlight.on_yank()
    end,
    group = highlight_group,
    pattern = '*',
})

-- NERDTree
vim.api.nvim_set_keymap('n', '<c-t>', ':NERDTreeToggle %<CR>', { noremap = 1 })
vim.g.NERDTreeShowBookmarks     = 1
vim.g.NERDTreeIgnore            = {'\\.py[cd]$', '\\~$', '\\.swo$', '\\.swp$',
                                   '^\\.git$', '^\\.hg$', '^\\.svn$', '\\.bzr$'}
vim.g.NERDTreeChDirMode         = 3
vim.g.NERDTreeQuitOnOpen        = 1
vim.g.NERDTreeMouseMode         = 2
vim.g.NERDTreeShowHidden        = 1
vim.g.NERDTreeKeepTreeInNewTab  = 1
vim.g.nerdtree_tabs_open_on_gui_startup = 0

-- Filetype assignments - TODO: Is there an automatic way for this?
vim.cmd("au! BufRead,BufNewFile *.sv,*.svh          set filetype=verilog_systemverilog")
vim.cmd("au! BufRead,BufNewFile *iosfsb_trk.out     set filetype=iosfsbtrk")
vim.cmd("au! BufRead,BufNewFile *iosf_trk.out       set filetype=iosftrk")

-- [[ Configure Telescope ]]
-- See `:help telescope` and `:help telescope.setup()`
require('telescope').setup {
    defaults = {
        mappings = {
            i = {
                ['<C-u>'] = false,
                ['<C-d>'] = false,
            },
        },
    },
}

-- Enable telescope fzf native, if installed
pcall(require('telescope').load_extension, 'fzf')

-- See `:help telescope.builtin`
vim.keymap.set('n', '<ldeader>?', require('telescope.builtin').oldfiles, { desc = '[?] Find recently opened files' })
vim.keymap.set('n', '<leader><space>', require('telescope.builtin').buffers, { desc = '[ ] Find existing buffers' })
vim.keymap.set('n', '<leader>/', function()
    -- You can pass additional configuration to telescope to change theme, layout, etc.
    require('telescope.builtin').current_buffer_fuzzy_find(require('telescope.themes').get_dropdown {
        winblend = 10,
        previewer = false,
    })
end, { desc = '[/] Fuzzily search in current buffer]' })

vim.keymap.set('n', '<leader>sf', require('telescope.builtin').find_files, { desc = '[S]earch [F]iles' })
vim.keymap.set('n', '<leader>sh', require('telescope.builtin').help_tags, { desc = '[S]earch [H]elp' })
vim.keymap.set('n', '<leader>sw', require('telescope.builtin').grep_string, { desc = '[S]earch current [W]ord' })
vim.keymap.set('n', '<leader>sg', require('telescope.builtin').live_grep, { desc = '[S]earch by [G]rep' })
vim.keymap.set('n', '<leader>sd', require('telescope.builtin').diagnostics, { desc = '[S]earch [D]iagnostics' })

-- The line beneath this is called `modeline`. See `:help modeline`
-- vim: ft=lua ts=4 sts=4 sw=4 et