local M = {}

M.has_words_before = function()
	local line, col = unpack(vim.api.nvim_win_get_cursor(0))
	return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match '%s' == nil
end

M.lsp_config = {
	-- virtual_text = {
	-- 	prefix = '●',
	-- },
	virtual_text = false,
	signs = false,
	underline = true,
	update_in_insert = false,
	severity_sort = false,
	float = {
		focusable = false,
		-- style = 'minimal',
		border = 'rounded',
		source = 'always',
		header = '',
		prefix = '',
	},
}

M.lspservername = function()
	local msg = ''
	local buf_ft = vim.api.nvim_buf_get_option(0, 'filetype')
	local clients = vim.lsp.get_active_clients()
	if next(clients) == nil then return msg end
	for _, client in ipairs(clients) do
		local filetypes = client.config.filetypes
		if filetypes and vim.fn.index(filetypes, buf_ft) ~= -1 then
			return client.name
		end
	end
	return msg
end

M.feline_theme = {
	fg = '#c9d1d9',
	bg = '#101010',
	green = '#66cc66',
	yellow = '#ffdd11',
	purple = '#c678dd',
	orange = '#cc8c3c',
	peanut = '#f6d5a4',
	red = '#e06c75',
	aqua = '#61afef',
	bg2 = '#484848',
	dark_red = '#f75f5f',
	normal = '#A9A9A9'
}

M.feline_vi_mode_colors = {
	NORMAL = 'normal',
	OP = 'green',
	INSERT = 'yellow',
	VISUAL = 'orange',
	LINES = 'orange',
	BLOCK = 'dark_red',
	REPLACE = 'red',
	COMMAND = 'aqua',
}


local left_component_separator = {
	str = ' ',
	hl = {
		fg = '#4a4a4a',
	},
}
local right_component_separator = {
	str = ' ',
	hl = {
		fg = '#4a4a4a',
	},
}
local left_section_separator = {
	str = '█',
	hl = {
		fg = 'normal',
	},
}
local right_section_separator = {
	str = '',
	hl = {
		fg = '#4a4a4a',
	},

}
local function selectionCount()
	local isVisualMode = vim.fn.mode():find("[Vv]")
	if not isVisualMode then return "" end
	local starts = vim.fn.line("v")
	local ends = vim.fn.line(".")
	local lines = starts <= ends and ends - starts + 1 or starts - ends + 1
	return "" .. tostring(lines) .. "L " .. tostring(vim.fn.wordcount().visual_chars) .. "C"
end

local function startupTime()
	return tostring(require'lazy'.stats().startuptime)
end

M.feline_c = {
	right_separator = {
		provider = '',
		left_sep = ' ',
		hl = {
			fg = '#484848'
		}
	},
	left_separator = {
		provider = '',
		left_sep = ' ',
		hl = {
			fg = '#484848'
		}
	},
	vim_mode = {
		provider = {
			name = 'vi_mode',
			opts = {
				show_mode_name = true,
				-- padding = "center", -- Uncomment for extra padding.
			},
		},
		hl = function()
			return {
				bg = require('feline.providers.vi_mode').get_mode_color(),
				fg = 'bg',
				style = 'bold',
				name = 'NeovimModeHLColor',
			}
		end,
		left_sep = 'block',
		right_sep = {
			str = '█',
			hl = function()
				return {
					fg = require('feline.providers.vi_mode').get_mode_color(),
					style = 'bold',
					name = 'NeovimModeHLColor',
				}
			end,
		},
	},
	diagnostic_errors = {
		provider = 'diagnostic_errors',
		hl = {
			fg = 'red',
		},
	},
	diagnostic_warnings = {
		provider = 'diagnostic_warnings',
		hl = {
			fg = 'yellow',
		},
	},
	diagnostic_hints = {
		provider = 'diagnostic_hints',
		hl = {
			fg = 'aqua',
		},
	},
	diagnostic_info = {
		provider = 'diagnostic_info',
	},
	file_info = {
		provider = {
			name = 'file_info',
			opts = {
				colored_icon = true,
				type = 'relative-short',
			},
		},
		hl = {
			fg = 'bg2',
		},
		left_sep = ' ',
	},
	lsp_client_names = {
		provider = 'lsp_client_names',
		hl = {
			fg = 'bg2',
		},
		left_sep = 'right',
	},
	file_type = {
		provider = {
			name = 'file_type',
			opts = {
				filetype_icon = false,
				colored_icon = false,
				case = 'lowercase',
			},
		},
		hl = {
			fg = 'bg2',
		},
		left_sep = left_component_separator,
		right_sep = ' ',
	},
	file_encoding = {
		provider = 'file_encoding',
		hl = {
			fg = 'bg2',
		},
		left_sep = left_component_separator,
		right_sep = ' ',
	},
	position = {
		provider = 'position',
		hl = function()
			return {
				bg = require('feline.providers.vi_mode').get_mode_color(),
				fg = 'bg',
				style = 'bold',
				name = 'NeovimModeHLColor',
			}
		end,
		right_sep = 'block',
		left_sep = {
			str = '█',
			hl = function()
				return {
					fg = require('feline.providers.vi_mode').get_mode_color(),
					style = 'bold',
					name = 'NeovimModeHLColor',
				}
			end,
		},
	},
	startup = {
		provider = startupTime,
		left_sep = ' ',
		right_sep = ' ',
	},
	select_count = {
		provider = selectionCount,
		hl = function()
			return {
				fg = require('feline.providers.vi_mode').get_mode_color(),
				style = 'bold',
				name = 'NeovimModeHLColor',
			}
		end,
		left_sep = ' ',
		right_sep = ' ',
	},
	line_percentage = {
		provider = 'line_percentage',
		hl = {
			fg = 'normal',
		},
		left_sep = ' ',
		right_sep = ' ',
	},
	scroll_bar = {
		provider = 'scroll_bar',
		hl = {
			fg = 'yellow',
			style = 'bold',
		},
	},
	search_count = {
		provider = 'search_count',
		left_sep = left_component_separator,
		right_sep = ' ',
	},
	macro = {
		provider = 'macro',
		hl = {
			style = 'bold',
			bg = 'bg2',
		},
		left_sep = 'block',
		right_sep = 'block',
	},
	gitBranch = {
		provider = 'git_branch',
		hl = {
			fg = 'peanut',
			bg = 'bg2',
			style = 'bold',
		},
		left_sep = ' ',
		right_sep = right_section_separator,
	},
	gitDiffAdded = {
		provider = 'git_diff_added',
		hl = {
			fg = 'green',
			bg = 'bg2',
		},
		left_sep = 'block',
		right_sep = 'block',
	},
	gitDiffRemoved = {
		provider = 'git_diff_removed',
		hl = {
			fg = 'red',
			bg = 'bg2',
		},
		left_sep = 'block',
		right_sep = 'block',
	},
	gitDiffChanged = {
		provider = 'git_diff_changed',
		hl = {
			fg = 'fg',
			bg = 'bg2',
		},
		left_sep = 'block',
		right_sep = 'right_filled',
	},
}

return M