-- Keep cursor away from the edges
vim.opt.scrolloff = 8

require("neoscroll").setup({
    -- All these keys will be mapped to their corresponding default scrolling animation
    mappings = { '<C-u>', '<C-d>', '<C-b>', '<C-f>',
        '<C-y>', '<C-e>', 'zt', 'zz', 'zb' },
    hide_cursor = true,            -- Hide cursor while scrolling
    stop_eof = true,               -- Stop at <EOF> when scrolling downwards
    respect_scrolloff = false,      -- Stop scrolling when the cursor reaches the scrolloff margin of the file
    cursor_scrolls_alone = true,   -- The cursor will keep on scrolling even if the window cannot scroll further
    easing_function = nil,         -- Default easing function
    pre_hook = nil,                -- Function to run before the scrolling animation starts
    post_hook = nil,               -- Function to run after the scrolling animation ends
    performance_mode = false,      -- Disable "Performance Mode" on all buffers.
    easing_function = "quadratic", -- Default easing function
})

local t    = {}
-- Syntax: t[keys] = {function, {function arguments}}
-- Use the "sine" easing function
t['<C-u>'] = { 'scroll', { '-vim.wo.scroll', 'true', '350', [['sine']] } }
t['<C-d>'] = { 'scroll', { 'vim.wo.scroll', 'true', '350', [['sine']] } }
-- Use the "circular" easing function
t['<C-b>'] = { 'scroll', { '-vim.api.nvim_win_get_height(0)', 'true', '500', [['circular']] } }
t['<C-f>'] = { 'scroll', { 'vim.api.nvim_win_get_height(0)', 'true', '500', [['circular']] } }
-- Pass "nil" to disable the easing animation (constant scrolling speed)
t['<C-y>'] = { 'scroll', { '-0.10', 'false', '100', nil } }
t['<C-e>'] = { 'scroll', { '0.10', 'false', '100', nil } }
-- When no easing function is provided the default easing function (in this case "quadratic") will be used
t['zt']    = { 'zt', { '300' } }
t['zz']    = { 'zz', { '300' } }
t['zb']    = { 'zb', { '300' } }

require('neoscroll.config').set_mappings(t)