-- https://github.com/nvim-neo-tree/neo-tree.nvim

-- If you want icons for diagnostic errors, you'll need to define them somewhere:
vim.fn.sign_define("DiagnosticSignError", { text = " ", texthl = "DiagnosticSignError" })
vim.fn.sign_define("DiagnosticSignWarn", { text = " ", texthl = "DiagnosticSignWarn" })
vim.fn.sign_define("DiagnosticSignInfo", { text = " ", texthl = "DiagnosticSignInfo" })
vim.fn.sign_define("DiagnosticSignHint", { text = "󰌵", texthl = "DiagnosticSignHint" })

require("neo-tree").setup({
    close_if_last_window = true, -- Close Neo-tree if it is the last window left in the tab
    popup_border_style = "rounded",
    enable_git_status = true,
    enable_diagnostics = true,
    enable_normal_mode_for_inputs = false,                           -- Enable normal mode for input dialogs.
    open_files_do_not_replace_types = { "terminal", "trouble", "qf" }, -- when opening files, do not use windows containing these filetypes or buftypes
    sort_case_insensitive = false,                                   -- used when sorting files and directories in the tree
    sort_function = nil,                                             -- use a custom function for sorting files and directories in the tree
    -- sort_function = function (a,b)
    --       if a.type == b.type then
    --           return a.path > b.path
    --       else
    --           return a.type > b.type
    --       end
    --   end , -- this sorts files and directories descendantly
    default_component_configs = {
        container = {
            enable_character_fade = true
        },
        indent = {
            indent_size = 2,
            padding = 1, -- extra padding on left hand side
            -- indent guides
            with_markers = true,
            indent_marker = "│",
            last_indent_marker = "└",
            highlight = "NeoTreeIndentMarker",
            -- expander config, needed for nesting files
            with_expanders = nil, -- if nil and file nesting is enabled, will enable expanders
            expander_collapsed = "",
            expander_expanded = "",
            expander_highlight = "NeoTreeExpander",
        },
        icon = {
            folder_closed = "",
            folder_open = "",
            folder_empty = "󰜌",
            -- The next two settings are only a fallback, if you use nvim-web-devicons and configure default icons there
            -- then these will never be used.
            default = "*",
            highlight = "NeoTreeFileIcon"
        },
        modified = {
            symbol = "[+]",
            highlight = "NeoTreeModified",
        },
        name = {
            trailing_slash = false,
            use_git_status_colors = true,
            highlight = "NeoTreeFileName",
        },
        git_status = {
            symbols = {
                -- Change type
                added     = "", -- or "✚", but this is redundant info if you use git_status_colors on the name
                modified  = "", -- or "", but this is redundant info if you use git_status_colors on the name
                deleted   = "✖", -- this can only be used in the git_status source
                renamed   = "󰁕", -- this can only be used in the git_status source
                -- Status type
                untracked = "",
                ignored   = "",
                unstaged  = "󰄱",
                staged    = "",
                conflict  = "",
            }
        },
        -- If you don't want to use these columns, you can set `enabled = false` for each of them individually
        file_size = {
            enabled = true,
            required_width = 64, -- min width of window required to show this column
        },
        type = {
            enabled = true,
            required_width = 122, -- min width of window required to show this column
        },
        last_modified = {
            enabled = true,
            required_width = 88, -- min width of window required to show this column
        },
        created = {
            enabled = true,
            required_width = 110, -- min width of window required to show this column
        },
        symlink_target = {
            enabled = false,
        },
    },
    -- A list of functions, each representing a global custom command
    -- that will be available in all sources (if not overridden in `opts[source_name].commands`)
    -- see `:h neo-tree-custom-commands-global`
    commands = {},
    window = {
        position = "left",
        width = 40,
        mapping_options = {
            noremap = true,
            nowait = true,
        },
        -- mappings = {
        --     ["<space>"] = {
        --         "toggle_node",
        --         nowait = false, -- disable `nowait` if you have existing combos starting with this char that you want to use
        --     },
        --     ["<2-LeftMouse>"] = "open",
        --     ["<cr>"] = "open",
        --     ["<esc>"] = "cancel", -- close preview or floating neo-tree window
        --     ["P"] = { "toggle_preview", config = { use_float = true, use_image_nvim = true } },
        --     -- Read `# Preview Mode` for more information
        --     ["l"] = "focus_preview",
        --     ["S"] = "open_split",
        --     ["s"] = "open_vsplit",
        --     -- ["S"] = "split_with_window_picker",
        --     -- ["s"] = "vsplit_with_window_picker",
        --     ["t"] = "open_tabnew",
        --     -- ["<cr>"] = "open_drop",
        --     -- ["t"] = "open_tab_drop",
        --     ["w"] = "open_with_window_picker",
        --     --["P"] = "toggle_preview", -- enter preview mode, which shows the current node without focusing
        --     ["C"] = "close_node",
        --     -- ['C'] = 'close_all_subnodes',
        --     ["z"] = "close_all_nodes",
        --     --["Z"] = "expand_all_nodes",
        --     ["a"] = {
        --         "add",
        --         -- this command supports BASH style brace expansion ("x{a,b,c}" -> xa,xb,xc). see `:h neo-tree-file-actions` for details
        --         -- some commands may take optional config options, see `:h neo-tree-mappings` for details
        --         config = {
        --             show_path = "none" -- "none", "relative", "absolute"
        --         }
        --     },
        --     ["A"] = "add_directory", -- also accepts the optional config.show_path option like "add". this also supports BASH style brace expansion.
        --     ["d"] = "delete",
        --     ["r"] = "rename",
        --     ["y"] = "copy_to_clipboard",
        --     ["x"] = "cut_to_clipboard",
        --     ["p"] = "paste_from_clipboard",
        --     ["c"] = "copy", -- takes text input for destination, also accepts the optional config.show_path option like "add":
        --     -- ["c"] = {
        --     --  "copy",
        --     --  config = {
        --     --    show_path = "none" -- "none", "relative", "absolute"
        --     --  }
        --     --}
        --     ["m"] = "move", -- takes text input for destination, also accepts the optional config.show_path option like "add".
        --     ["q"] = "close_window",
        --     ["R"] = "refresh",
        --     ["?"] = "show_help",
        --     ["<"] = "prev_source",
        --     [">"] = "next_source",
        --     ["i"] = "show_file_details",
        -- }
    },
    nesting_rules = {},
    filesystem = {
        filtered_items = {
            visible = true, -- when true, they will just be displayed differently than normal items
            hide_dotfiles = false,
            hide_gitignored = false,
            hide_hidden = false, -- only works on Windows for hidden files/directories
            -- hide_by_name = {
                -- "node_modules"
            -- },
            -- hide_by_pattern = { -- uses glob style patterns
                --"*.meta",
                --"*/src/*/tsconfig.json",
            -- },
            always_show = { -- remains visible even if other settings would normally hide it
                ".gitignore",
            },
            never_show = { -- remains hidden even if visible is toggled to true, this overrides always_show
                ".DS_Store",
                "thumbs.db"
            },
            -- never_show_by_pattern = { -- uses glob style patterns
                --".null-ls_*",
            -- },
        },
        follow_current_file = {
            enabled = false,                -- This will find and focus the file in the active buffer every time
            --               -- the current file is changed while the tree is open.
            leave_dirs_open = false,        -- `false` closes auto expanded dirs, such as with `:Neotree reveal`
        },
        group_empty_dirs = true,           -- when true, empty folders will be grouped together
        -- hijack_netrw_behavior = "open_default", -- netrw disabled, opening a directory opens neo-tree
        -- in whatever position is specified in window.position
        -- "open_current",  -- netrw disabled, opening a directory opens within the
        -- window like netrw would, regardless of window.position
        -- "disabled",    -- netrw left alone, neo-tree does not handle opening dirs
        use_libuv_file_watcher = true, -- This will use the OS level file watchers to detect changes
        -- instead of relying on nvim autocmd events.
        -- window = {
        --     mappings = {
        --         ["<bs>"] = "navigate_up",
        --         ["."] = "set_root",
        --         ["H"] = "toggle_hidden",
        --         ["/"] = "fuzzy_finder",
        --         ["D"] = "fuzzy_finder_directory",
        --         ["#"] = "fuzzy_sorter", -- fuzzy sorting using the fzy algorithm
        --         -- ["D"] = "fuzzy_sorter_directory",
        --         ["f"] = "filter_on_submit",
        --         ["<c-x>"] = "clear_filter",
        --         ["[g"] = "prev_git_modified",
        --         ["]g"] = "next_git_modified",
        --         ["o"] = { "show_help", nowait = false, config = { title = "Order by", prefix_key = "o" } },
        --         ["oc"] = { "order_by_created", nowait = false },
        --         ["od"] = { "order_by_diagnostics", nowait = false },
        --         ["og"] = { "order_by_git_status", nowait = false },
        --         ["om"] = { "order_by_modified", nowait = false },
        --         ["on"] = { "order_by_name", nowait = false },
        --         ["os"] = { "order_by_size", nowait = false },
        --         ["ot"] = { "order_by_type", nowait = false },
        --         -- ['<key>'] = function(state) ... end,
        --     },
        --     fuzzy_finder_mappings = { -- define keymaps for filter popup window in fuzzy_finder_mode
        --         ["<down>"] = "move_cursor_down",
        --         ["<C-n>"] = "move_cursor_down",
        --         ["<up>"] = "move_cursor_up",
        --         ["<C-p>"] = "move_cursor_up",
        --         -- ['<key>'] = function(state, scroll_padding) ... end,
        --     },
        -- },

        commands = {} -- Add a custom command or override a global one using the same function name
    },
    -- buffers = {
    --     follow_current_file = {
    --         enabled = true,    -- This will find and focus the file in the active buffer every time
    --         --              -- the current file is changed while the tree is open.
    --         leave_dirs_open = false, -- `false` closes auto expanded dirs, such as with `:Neotree reveal`
    --     },
    --     group_empty_dirs = true, -- when true, empty folders will be grouped together
    --     show_unloaded = true,
    --     window = {
    --         mappings = {
    --             ["bd"] = "buffer_delete",
    --             ["<bs>"] = "navigate_up",
    --             ["."] = "set_root",
    --             ["o"] = { "show_help", nowait = false, config = { title = "Order by", prefix_key = "o" } },
    --             ["oc"] = { "order_by_created", nowait = false },
    --             ["od"] = { "order_by_diagnostics", nowait = false },
    --             ["om"] = { "order_by_modified", nowait = false },
    --             ["on"] = { "order_by_name", nowait = false },
    --             ["os"] = { "order_by_size", nowait = false },
    --             ["ot"] = { "order_by_type", nowait = false },
    --         }
    --     },
    -- },
    git_status = {
        window = {
            position = "float",
            mappings = {
                ["A"]  = "git_add_all",
                ["gu"] = "git_unstage_file",
                ["ga"] = "git_add_file",
                ["gr"] = "git_revert_file",
                ["gc"] = "git_commit",
                ["gp"] = "git_push",
                ["gg"] = "git_commit_and_push",
                ["o"]  = { "show_help", nowait = false, config = { title = "Order by", prefix_key = "o" } },
                ["oc"] = { "order_by_created", nowait = false },
                ["od"] = { "order_by_diagnostics", nowait = false },
                ["om"] = { "order_by_modified", nowait = false },
                ["on"] = { "order_by_name", nowait = false },
                ["os"] = { "order_by_size", nowait = false },
                ["ot"] = { "order_by_type", nowait = false },
            }
        }
    }
})