local lualine = require("lualine")

local colors = {
    bg       = '#202328',
    fg       = '#bbc2cf',
    yellow   = '#ECBE7B',
    cyan     = '#008080',
    darkblue = '#081633',
    green    = '#98be65',
    orange   = '#FF8800',
    violet   = '#a9a1e1',
    magenta  = '#c678dd',
    blue     = '#51afef',
    red      = '#ec5f67',
}

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,
}

local config = {
    options = {
        icons_enabled = true,
        -- theme = 'onedark',
        theme = {
            -- We are going to use lualine_c an lualine_x as left and
            -- right section. Both are highlighted by c theme .  So we
            -- are just setting default looks o statusline
            normal = { c = { fg = colors.fg, bg = colors.bg } },
            inactive = { c = { fg = colors.fg, bg = colors.bg } },
        },
        component_separators = '',
        section_separators = '',
        globalstatus = true,
    },
    sections = {
        -- these are to remove the defaults
        lualine_a = {},
        lualine_b = {},
        lualine_y = {},
        lualine_z = {},
        -- These will be filled later
        lualine_c = {},
        lualine_x = {},
    },
}

-- Inserts a component in lualine_c at left section
local function ins_left(component)
    table.insert(config.sections.lualine_c, component)
end

-- Inserts a component in lualine_x ot right section
local function ins_right(component)
    table.insert(config.sections.lualine_x, component)
end

ins_left {
    function()
        return '▊'
    end,
    color = { fg = colors.blue }, -- Sets highlighting of component
    padding = { left = 0, right = 1 }, -- We don't need space before this
}

ins_left {
    -- mode component
    function()
        return ''
    end,
    color = function()
        -- auto change color according to neovims mode
        local mode_color = {
            n = colors.red,
            i = colors.green,
            v = colors.blue,
            [''] = colors.blue,
            V = colors.blue,
            c = colors.magenta,
            no = colors.red,
            s = colors.orange,
            S = colors.orange,
            [''] = colors.orange,
            ic = colors.yellow,
            R = colors.violet,
            Rv = colors.violet,
            cv = colors.red,
            ce = colors.red,
            r = colors.cyan,
            rm = colors.cyan,
            ['r?'] = colors.cyan,
            ['!'] = colors.red,
            t = colors.red,
        }
        return { fg = mode_color[vim.fn.mode()] }
    end,
    padding = { right = 1 },
}

ins_left {
    -- filesize component
    'filesize',
    cond = conditions.buffer_not_empty,
}

ins_left {
    'filename',
    cond = conditions.buffer_not_empty,
    color = { fg = colors.magenta, gui = 'bold' },
}

ins_left { 'location' }

ins_left { 'progress', color = { fg = colors.fg, gui = 'bold' } }

ins_right {
    -- LSP Indicator
    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 ' '
            end
        end
        return msg
    end,
}

ins_left {
    'diagnostics',
    sources = { 'nvim_lsp' },
    sections = { 'error', 'warn', 'info', 'hint' },
    -- symbols = { error = 'E', warn = 'W', info = 'I', hint = 'H' },
    diagnostics_color = {
        -- Same values as the general color option can be used here.
        error = 'DiagnosticError', -- Changes diagnostics' error color.
        warn  = 'DiagnosticWarn', -- Changes diagnostics' warn color.
        info  = 'DiagnosticInfo', -- Changes diagnostics' info color.
        hint  = 'DiagnosticHint', -- Changes diagnostics' hint color.
    },
}

lualine.setup(config)