local mp = require 'mp'
local utils = require 'mp.utils'

function detect_platform()
    local o = {}
    -- Kind of a dumb way of detecting the platform but whatever
    if mp.get_property_native('options/vo-mmcss-profile', o) ~= o then
        return 'windows'
    elseif mp.get_property_native('options/input-app-events', o) ~= o then
        return 'macos'
    end
    return 'linux'
end

local platform = detect_platform()

clipboard_module = {}

function clipboard_module.set_clipboard(content)
    if platform == 'linux' then
        local res = utils.subprocess({ args = {
            'echo', content .. ' | xclip -selection c'
        } })
    elseif platform == 'windows' then
        local res = utils.subprocess({ args = {
            'powershell', '-NoProfile', '-Command', 'Set-Clipboard ' .. content
        } })
    elseif platform == 'macos' then
        local res = utils.subprocess({ args = { 'echo', content .. ' | pbcopy' } })
    end
end

function clipboard_module.get_clipboard(clip)
    if platform == 'linux' then
        local res = utils.subprocess({ args = {
            'xclip', '-selection', clip and 'clipboard' or 'primary', '-out'
        } })
        if not res.error then
            return res.stdout
        else
            return 'error'
        end
    elseif platform == 'windows' then
        local res = utils.subprocess({ args = {
            'powershell', '-NoProfile', '-Command', [[& {
                Trap {
                    Write-Error -ErrorRecord $_
                    Exit 1
                }
                $clip = ""
                if (Get-Command "Get-Clipboard" -errorAction SilentlyContinue) {
                    $clip = Get-Clipboard -Raw -Format Text -TextFormatType UnicodeText
                } else {
                    Add-Type -AssemblyName PresentationCore
                    $clip = [Windows.Clipboard]::GetText()
                }
                $clip = $clip -Replace "`r",""
                $u8clip = [System.Text.Encoding]::UTF8.GetBytes($clip)
                [Console]::OpenStandardOutput().Write($u8clip, 0, $u8clip.Length)
            }]]
        } })
        if not res.error then
            return res.stdout
        else
            return 'error'
        end
    elseif platform == 'macos' then
        local res = utils.subprocess({ args = { 'pbpaste' } })
        if not res.error then
            return res.stdout
        else
            return 'error'
        end
    end
    return ''
end

return clipboard_module