-- Custom variables
repo = arg[1]
token = arg[2]

if repo == nil and token == nil and fs.exists('/disk/github-config.json') then
    -- Load it from the config file
    fp = fs.open('/disk/github-config.json', 'r')
    config = textutils.unserialize(fp.readAll())
    fp.close()
    repo = config['repo']
    token = config['token']
else
    -- Persist the Github config
    serializedConfig = textutils.serialize({['repo'] = repo, ['token'] = token})
    fp = fs.open('/disk/github-config.json', 'w')
    fp.write(serializedConfig)
    fp.close()
end

-- HTTP configuration
headers = { ['Authorization'] = 'token ' .. token, ['Accept'] = 'application/vnd.github.v3.raw'}
baseUrl = 'https://api.github.com/repos/' .. repo

-- Get all the files and directories
rawTree = http.get(baseUrl .. '/git/trees/master?recursive=1', headers).readAll()
files = string.gmatch(rawTree, '"path":"([^"]+)"')
types = string.gmatch(rawTree, '"type":"([^"]+)"')
filesDat = {}
directoriesDat = {}

for file in files
do
    type = types()
    if type == 'tree' then
        table.insert(directoriesDat, file)
        print('Creating a directory at ' .. file)
        fs.makeDir('/disk/' .. file)
    else
        table.insert(filesDat, file)
        print('Downloading ' .. file)
        data = http.get(baseUrl .. '/contents/' .. file, headers).readAll()
        fp = fs.open('/disk/' .. file, 'w')
        fp.write(data)
        fp.close()
    end
end

-- Save the list of files and directories
fp = fs.open('/disk/files.dat', 'w')
fp.write(textutils.serialize(filesDat))
fp.close()
fp = fs.open('/disk/directories.dat', 'w')
fp.write(textutils.serialize(directoriesDat))
fp.close()