nvim/lua/plugins/lualine.lua

return {
  "nvim-lualine/lualine.nvim",
  event = "VeryLazy",
  dependencies = {
    "nvim-tree/nvim-web-devicons"
  },
  config = function()
    local lualine = require("lualine")
    local colors = {
      lime = "#71f79f",
      red = "#ed254e",
      orange = "#ff6a00",
      yellow = "#f9dc5c",
      purple = "#c74ded",
      dark_purple = "#7b7bbd",
      blue = "#7cb7ff",
      cyan = "#00c1e4",
      teal = "#00e8c6",
      watermelon = "#ff4d7a",
      white = "#fefefe",
      text = "#c3c7d1",
      subtext1 = "#a8b2c0",
      subtext0 = "#8a96a8",
      base = "#161925",
      mantle = "#121520",
      surface0 = "#1a1f2e",
      surface1 = "#222e39",
      surface2 = "#31363d",
    }
    local conditions = {
      buffer_not_empty = function()
        return vim.fn.empty(vim.fn.expand("%:t")) ~= 1
      end,
      hide_in_width = function()
        return vim.fn.winwidth(0) > 80
      end,
      check_git_workspace = function()
        local filepath = vim.fn.expand("%:p:h")
        local gitdir = vim.fn.finddir(".git", filepath .. ";")
        return gitdir and #gitdir > 0 and #gitdir < #filepath
      end,
      is_code_file = function()
        local ft = vim.bo.filetype
        return ft == "javascript" or ft == "typescript" or ft == "lua" or ft == "python" or ft == "jsx" or ft == "tsx"
      end,
    }
    local config = {
      options = {
        component_separators = "",
        section_separators = "",
        theme = {
          normal = { c = { fg = colors.fg, bg = colors.bg } },
          inactive = { c = { fg = colors.fg, bg = colors.bg } },
        },
      },
      sections = {
        lualine_a = {},
        lualine_b = {},
        lualine_y = {},
        lualine_z = {},
        lualine_c = {},
        lualine_x = {},
      },
      inactive_sections = {
        lualine_a = {},
        lualine_b = {},
        lualine_y = {},
        lualine_z = {},
        lualine_c = {},
        lualine_x = {},
      },
    }
    local function ins_left(component)
      table.insert(config.sections.lualine_c, component)
    end
    local function ins_right(component)
      table.insert(config.sections.lualine_x, component)
    end
    -- Left Side
    -- Component: Mode
    ins_left {
      "mode",
      color = function()
        local mode_color = {
          n = colors.lime,
          i = colors.blue,
          v = colors.purple,
          [''] = colors.purple,
          V = colors.purple,
          c = colors.yellow,
          R = colors.red,
          t = colors.teal
        }
        return { bg = colors.mantle, fg = mode_color[vim.fn.mode()], gui = "bold" }
      end,
      padding = { left = 1, right = 1 }
    }
    -- Separator Mode->Filename
    ins_left {
      function() return "" end,
      color = { fg = colors.mantle, bg = colors.orange },
      padding = 0
    }
    -- Component: Filename
    ins_left {
      "filename",
      path = 1,
      shorting_target = 32,
      file_status = true,
      symbols = {
        modified = "[+]",
        readonly = "[RO]",
        unnamed = "[No Name]"
      },
      cond = conditions.buffer_not_empty,
      color = { fg = colors.mantle, bg = colors.orange, gui = "bold" },
      padding = { left = 1, right = 1 }
    }
    -- Seperator Filename -> Git
    ins_left {
      function() return "" end,
      color = { fg = colors.orange, bg = colors.lime },
      padding = 0
    }
    -- Component: Git Branch
    ins_left {
      "branch",
      color = { fg = colors.mantle, bg = colors.lime },
      padding = { left = 1, right = 1 }
    }
    -- Component: Git diff status
    ins_left {
      "diff",
      symbols = {
        added = '+',
        modified = '!',
        removed = '-'
      },
      diff_color = {
        added = { fg = colors.bg, bg = colors.lime },
        modified = { fg = colors.dark_purple, bg = colors.lime },
        removed = { fg = colors.red, bg = colors.lime },
      },
      cond = conditions.check_git_workspace,
      padding = { left = 0, right = 1 },
    }
    -- Seperator Git -> Function
    ins_left {
      function() return "" end,
      color = { fg = colors.lime, bg = colors.watermelon },
      padding = 0
    }
    -- Component: Current Function
    ins_left {
      function()
        local ft = vim.bo.filetype
        local is_code_file = ft == "javascript" or ft == "typescript" or ft == "lua" or ft == "python" or ft == "jsx" or
            ft == "tsx"
        if not is_code_file then
          return ""
        end
        local ts_utils = require("nvim-treesitter.ts_utils")
        local current_node = ts_utils.get_node_at_cursor()
        if not current_node then return "" end
        local function_node = current_node
        while function_node do
          local node_type = function_node:type()
          if node_type == "function_declaration" or
              node_type == "function_expression" or
              node_type == "arrow_function" or
              node_type == "method_definition" then
            break
          end
          function_node = function_node:parent()
        end
        if function_node then
          local name_node = function_node:field("name")[1]
          if name_node then
            local name = vim.treesitter.get_node_text(name_node, 0)
            return name:sub(1, 20)
          end
        end
        return "󰈙"
      end,
      icon = "󰊕",
      color = { fg = colors.mantle, bg = colors.watermelon, gui = "bold" },
    }
    -- Seperator End
    ins_left {
      function() return "" end,
      color = { fg = colors.watermelon, bg = colors.surface1 },
      padding = { left = 0, right = 1 }
    }
    -- Right Side
    -- Seperator Start
    ins_right {
      function() return "" end,
      color = { fg = colors.teal, bg = colors.surface1 },
      padding = 0
    }
    -- Component: Encoding
    ins_right {
      "encoding",
      color = { fg = colors.mantle, bg = colors.teal, gui = "bold" },
    }
    -- Component: Filetype
    ins_right {
      "filetype",
      color = { fg = colors.mantle, bg = colors.teal, gui = "bold" },
    }
    -- Separator: Filetype -> LSP Status
    ins_right {
      function() return "" end,
      color = { fg = colors.dark_purple, bg = colors.teal },
      padding = 0
    }
    -- Component: LSP Status
    ins_right {
      "lsp_status",
      color = { fg = colors.text, bg = colors.dark_purple, gui = "bold" }
    }
    -- Seperator: LSP Status -> Diagnostics
    ins_right {
      function() return "" end,
      color = { bg = colors.dark_purple, fg = colors.surface0 },
      padding = 0
    }
    -- Component: Diagnostics
    ins_right {
      "diagnostics",
      always_visible = true,
      symbols = {
        error = "[E]",
        warn = "[W]",
        info = "[I]",
        hint = "[H]"
      },
      color = { bg = colors.surface0, gui = "bold" }
    }
    -- Seperator: Diagnostics -> Location
    ins_right {
      function() return "" end,
      color = { fg = colors.white, bg = colors.surface0 },
      padding = 0
    }
    -- Component: Location
    ins_right {
      "location",
      color = { fg = colors.mantle, bg = colors.white, gui = "bold" }
    }
    lualine.setup(config)
  end,
}