6 files changed, 445 insertions, 0 deletions
diff --git a/lua/lvim/builtin/lualine/colors.lua b/lua/lvim/builtin/lualine/colors.lua
new file mode 100644
index 00000000..4984cd1f
--- /dev/null
+++ b/lua/lvim/builtin/lualine/colors.lua
@@ -0,0 +1,16 @@
+local colors = {
+  bg = "#202328",
+  fg = "#bbc2cf",
+  yellow = "#ECBE7B",
+  cyan = "#008080",
+  darkblue = "#081633",
+  green = "#98be65",
+  orange = "#FF8800",
+  violet = "#a9a1e1",
+  magenta = "#c678dd",
+  purple = "#c678dd",
+  blue = "#51afef",
+  red = "#ec5f67",
+}
+
+return colors
diff --git a/lua/lvim/builtin/lualine/components.lua b/lua/lvim/builtin/lualine/components.lua
new file mode 100644
index 00000000..2f8e8b37
--- /dev/null
+++ b/lua/lvim/builtin/lualine/components.lua
@@ -0,0 +1,179 @@
+local conditions = require "lvim.builtin.lualine.conditions"
+local colors = require "lvim.builtin.lualine.colors"
+
+local function diff_source()
+  local gitsigns = vim.b.gitsigns_status_dict
+  if gitsigns then
+    return {
+      added = gitsigns.added,
+      modified = gitsigns.changed,
+      removed = gitsigns.removed,
+    }
+  end
+end
+
+local branch = lvim.icons.git.Branch
+
+if lvim.colorscheme == "lunar" then
+  branch = "%#SLGitIcon#" .. lvim.icons.git.Branch .. "%*" .. "%#SLBranchName#"
+end
+
+return {
+  mode = {
+    function()
+      return " " .. lvim.icons.ui.Target .. " "
+    end,
+    padding = { left = 0, right = 0 },
+    color = {},
+    cond = nil,
+  },
+  branch = {
+    "b:gitsigns_head",
+    icon = branch,
+    color = { gui = "bold" },
+  },
+  filename = {
+    "filename",
+    color = {},
+    cond = nil,
+  },
+  diff = {
+    "diff",
+    source = diff_source,
+    symbols = {
+      added = lvim.icons.git.LineAdded .. " ",
+      modified = lvim.icons.git.LineModified .. " ",
+      removed = lvim.icons.git.LineRemoved .. " ",
+    },
+    padding = { left = 2, right = 1 },
+    diff_color = {
+      added = { fg = colors.green },
+      modified = { fg = colors.yellow },
+      removed = { fg = colors.red },
+    },
+    cond = nil,
+  },
+  python_env = {
+    function()
+      local utils = require "lvim.builtin.lualine.utils"
+      if vim.bo.filetype == "python" then
+        local venv = os.getenv "CONDA_DEFAULT_ENV" or os.getenv "VIRTUAL_ENV"
+        if venv then
+          local icons = require "nvim-web-devicons"
+          local py_icon, _ = icons.get_icon ".py"
+          return string.format(" " .. py_icon .. " (%s)", utils.env_cleanup(venv))
+        end
+      end
+      return ""
+    end,
+    color = { fg = colors.green },
+    cond = conditions.hide_in_width,
+  },
+  diagnostics = {
+    "diagnostics",
+    sources = { "nvim_diagnostic" },
+    symbols = {
+      error = lvim.icons.diagnostics.BoldError .. " ",
+      warn = lvim.icons.diagnostics.BoldWarning .. " ",
+      info = lvim.icons.diagnostics.BoldInformation .. " ",
+      hint = lvim.icons.diagnostics.BoldHint .. " ",
+    },
+    -- cond = conditions.hide_in_width,
+  },
+  treesitter = {
+    function()
+      return lvim.icons.ui.Tree
+    end,
+    color = function()
+      local buf = vim.api.nvim_get_current_buf()
+      local ts = vim.treesitter.highlighter.active[buf]
+      return { fg = ts and not vim.tbl_isempty(ts) and colors.green or colors.red }
+    end,
+    cond = conditions.hide_in_width,
+  },
+  lsp = {
+    function(msg)
+      msg = msg or "LS Inactive"
+      local buf_clients = vim.lsp.buf_get_clients()
+      if next(buf_clients) == nil then
+        -- TODO: clean up this if statement
+        if type(msg) == "boolean" or #msg == 0 then
+          return "LS Inactive"
+        end
+        return msg
+      end
+      local buf_ft = vim.bo.filetype
+      local buf_client_names = {}
+      local copilot_active = false
+
+      -- add client
+      for _, client in pairs(buf_clients) do
+        if client.name ~= "null-ls" and client.name ~= "copilot" then
+          table.insert(buf_client_names, client.name)
+        end
+
+        if client.name == "copilot" then
+          copilot_active = true
+        end
+      end
+
+      -- add formatter
+      local formatters = require "lvim.lsp.null-ls.formatters"
+      local supported_formatters = formatters.list_registered(buf_ft)
+      vim.list_extend(buf_client_names, supported_formatters)
+
+      -- add linter
+      local linters = require "lvim.lsp.null-ls.linters"
+      local supported_linters = linters.list_registered(buf_ft)
+      vim.list_extend(buf_client_names, supported_linters)
+
+      local unique_client_names = vim.fn.uniq(buf_client_names)
+
+      local language_servers = "[" .. table.concat(unique_client_names, ", ") .. "]"
+
+      if copilot_active then
+        language_servers = language_servers .. "%#SLCopilot#" .. " " .. lvim.icons.git.Octoface .. "%*"
+      end
+
+      return language_servers
+    end,
+    color = { gui = "bold" },
+    cond = conditions.hide_in_width,
+  },
+  location = { "location" },
+  progress = {
+    "progress",
+    fmt = function()
+      return "%P/%L"
+    end,
+    color = {},
+  },
+
+  spaces = {
+    function()
+      local shiftwidth = vim.api.nvim_buf_get_option(0, "shiftwidth")
+      return lvim.icons.ui.Tab .. " " .. shiftwidth
+    end,
+    padding = 1,
+  },
+  encoding = {
+    "o:encoding",
+    fmt = string.upper,
+    color = {},
+    cond = conditions.hide_in_width,
+  },
+  filetype = { "filetype", cond = nil, padding = { left = 1, right = 1 } },
+  scrollbar = {
+    function()
+      local current_line = vim.fn.line "."
+      local total_lines = vim.fn.line "$"
+      local chars = { "__", "▁▁", "▂▂", "▃▃", "▄▄", "▅▅", "▆▆", "▇▇", "██" }
+      local line_ratio = current_line / total_lines
+      local index = math.ceil(line_ratio * #chars)
+      return chars[index]
+    end,
+    padding = { left = 0, right = 0 },
+    color = "SLProgress",
+    cond = nil,
+  },
+}
diff --git a/lua/lvim/builtin/lualine/conditions.lua b/lua/lvim/builtin/lualine/conditions.lua
new file mode 100644
index 00000000..42d52a83
--- /dev/null
+++ b/lua/lvim/builtin/lualine/conditions.lua
@@ -0,0 +1,17 @@
+local window_width_limit = 100
+
+local conditions = {
+  buffer_not_empty = function()
+    return vim.fn.empty(vim.fn.expand "%:t") ~= 1
+  end,
+  hide_in_width = function()
+    return vim.o.columns > window_width_limit
+  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,
+}
+
+return conditions
diff --git a/lua/lvim/builtin/lualine/init.lua b/lua/lvim/builtin/lualine/init.lua
new file mode 100644
index 00000000..42859962
--- /dev/null
+++ b/lua/lvim/builtin/lualine/init.lua
@@ -0,0 +1,54 @@
+local M = {}
+M.config = function()
+  lvim.builtin.lualine = {
+    active = true,
+    style = "lvim",
+    options = {
+      icons_enabled = nil,
+      component_separators = nil,
+      section_separators = nil,
+      theme = nil,
+      disabled_filetypes = { statusline = { "alpha" } },
+      globalstatus = true,
+    },
+    sections = {
+      lualine_a = nil,
+      lualine_b = nil,
+      lualine_c = nil,
+      lualine_x = nil,
+      lualine_y = nil,
+      lualine_z = nil,
+    },
+    inactive_sections = {
+      lualine_a = nil,
+      lualine_b = nil,
+      lualine_c = nil,
+      lualine_x = nil,
+      lualine_y = nil,
+      lualine_z = nil,
+    },
+    tabline = nil,
+    extensions = nil,
+  }
+end
+
+M.setup = function()
+  if #vim.api.nvim_list_uis() == 0 then
+    local Log = require "lvim.core.log"
+    Log:debug "headless mode detected, skipping running setup for lualine"
+    return
+  end
+
+  local status_ok, lualine = pcall(require, "lualine")
+  if not status_ok then
+    return
+  end
+
+  require("lvim.builtin.lualine.styles").update()
+
+  lualine.setup(lvim.builtin.lualine)
+
+  return lualine
+end
+
+return M
diff --git a/lua/lvim/builtin/lualine/styles.lua b/lua/lvim/builtin/lualine/styles.lua
new file mode 100644
index 00000000..22d69e12
--- /dev/null
+++ b/lua/lvim/builtin/lualine/styles.lua
@@ -0,0 +1,165 @@
+local M = {}
+local components = require "lvim.builtin.lualine.components"
+
+local styles = {
+  lvim = nil,
+  default = nil,
+  none = nil,
+}
+
+styles.none = {
+  style = "none",
+  options = {
+    theme = "auto",
+    globalstatus = true,
+    icons_enabled = lvim.use_icons,
+    component_separators = { left = "", right = "" },
+    section_separators = { left = "", right = "" },
+    disabled_filetypes = {},
+  },
+  sections = {
+    lualine_a = {},
+    lualine_b = {},
+    lualine_c = {},
+    lualine_x = {},
+    lualine_y = {},
+    lualine_z = {},
+  },
+  inactive_sections = {
+    lualine_a = {},
+    lualine_b = {},
+    lualine_c = {},
+    lualine_x = {},
+    lualine_y = {},
+    lualine_z = {},
+  },
+  tabline = {},
+  extensions = {},
+}
+
+styles.default = {
+  style = "default",
+  options = {
+    theme = "auto",
+    globalstatus = true,
+    icons_enabled = lvim.use_icons,
+    component_separators = {
+      left = lvim.icons.ui.DividerRight,
+      right = lvim.icons.ui.DividerLeft,
+    },
+    section_separators = {
+      left = lvim.icons.ui.BoldDividerRight,
+      right = lvim.icons.ui.BoldDividerLeft,
+    },
+    disabled_filetypes = {},
+  },
+  sections = {
+    lualine_a = { "mode" },
+    lualine_b = { "branch" },
+    lualine_c = { "filename" },
+    lualine_x = { "encoding", "fileformat", "filetype" },
+    lualine_y = { "progress" },
+    lualine_z = { "location" },
+  },
+  inactive_sections = {
+    lualine_a = {},
+    lualine_b = {},
+    lualine_c = { "filename" },
+    lualine_x = { "location" },
+    lualine_y = {},
+    lualine_z = {},
+  },
+  tabline = {},
+  extensions = {},
+}
+
+styles.lvim = {
+  style = "lvim",
+  options = {
+    theme = "auto",
+    globalstatus = true,
+    icons_enabled = lvim.use_icons,
+    component_separators = { left = "", right = "" },
+    section_separators = { left = "", right = "" },
+    disabled_filetypes = { "alpha" },
+  },
+  sections = {
+    lualine_a = {
+      components.mode,
+    },
+    lualine_b = {
+      components.branch,
+    },
+    lualine_c = {
+      components.diff,
+      components.python_env,
+    },
+    lualine_x = {
+      components.diagnostics,
+      components.lsp,
+      components.spaces,
+      components.filetype,
+    },
+    lualine_y = { components.location },
+    lualine_z = {
+      components.progress,
+    },
+  },
+  inactive_sections = {
+    lualine_a = {
+      components.mode,
+    },
+    lualine_b = {
+      components.branch,
+    },
+    lualine_c = {
+      components.diff,
+      components.python_env,
+    },
+    lualine_x = {
+      components.diagnostics,
+      components.lsp,
+      components.spaces,
+      components.filetype,
+    },
+    lualine_y = { components.location },
+    lualine_z = {
+      components.progress,
+    },
+  },
+  tabline = {},
+  extensions = {},
+}
+
+function M.get_style(style)
+  local style_keys = vim.tbl_keys(styles)
+  if not vim.tbl_contains(style_keys, style) then
+    local Log = require "lvim.core.log"
+    Log:error(
+      "Invalid lualine style"
+        .. string.format('"%s"', style)
+        .. "options are: "
+        .. string.format('"%s"', table.concat(style_keys, '", "'))
+    )
+    Log:debug '"lvim" style is applied.'
+    style = "lvim"
+  end
+
+  return vim.deepcopy(styles[style])
+end
+
+function M.update()
+  local style = M.get_style(lvim.builtin.lualine.style)
+
+  lvim.builtin.lualine = vim.tbl_deep_extend("keep", lvim.builtin.lualine, style)
+
+  local color_template = vim.g.colors_name or lvim.colorscheme
+  local theme_supported, template = pcall(function()
+    require("lualine.utils.loader").load_theme(color_template)
+  end)
+  if theme_supported and template then
+    lvim.builtin.lualine.options.theme = color_template
+  end
+end
+
+return M
diff --git a/lua/lvim/builtin/lualine/utils.lua b/lua/lvim/builtin/lualine/utils.lua
new file mode 100644
index 00000000..3fd3c2d3
--- /dev/null
+++ b/lua/lvim/builtin/lualine/utils.lua
@@ -0,0 +1,14 @@
+local M = {}
+
+function M.env_cleanup(venv)
+  if string.find(venv, "/") then
+    local final_venv = venv
+    for w in venv:gmatch "([^/]+)" do
+      final_venv = w
+    end
+    venv = final_venv
+  end
+  return venv
+end
+
+return M