local fs = require("filesystem")
--[[

    Bit Package Manager v1.0.0

    Available commands:
        install <packagename>   - install a package
        remove <packagename>    - remove an installed package
        addrepo <addr>          - add a repository
        remrepo <addr>          - remove a repository
        update                  - update all installed packages

]]

-- args is positional
-- ops are -
local args, ops = shell.parse()

function getAvailableRepositories()
    local repos = {}
    if fs.isDirectory("/etc/bpm") then
        local file = io.open("/etc/bpm/repos.txt", "r")
        i = 1
        for line in file:lines() do
            repos[i] = line
            i += 1
        end
        file:close()
    else
        fs.makeDirectory("/etc/bpm")
        fs.open("/etc/bpm/repos.txt", "w"):write("https://reign-network.co.uk/minecraft/package-manager/packages"):close()
    return repos

end


local repos = getAvailableRepositories()


function downloadPackageData(url, tmpPath)
    --[[
        1. Download from url,
        2. Store in a tmp folder
        3. return package metadata
    ]]
end

--  COMMANDS ---




function install(packageName)
    --[[
        1. Search available repositories for packageName
        2. Install if we find it
    ]]

end

function search(packageName)
    for repo in repos do
        
    end
end












if #args == 0 then
    -- Print help command
    print(" === Bit Package Manager v1.0.0 ===")
    print(" Available commands:")
    print("   install    ;   Installs a package")
    print("   search     ;   Search available repos for a package")
    print("   remove     ;   Removes a package")
    print("   addrepo    ;   Adds a package repository")
    print("   remrepo    ;   Removes a package repository")
    exit(0)
end

if args[1] == "install" then
    if #args >= 2 then
        install(args[2])
    end
else if args[1] == "search" then
    if #args >= 2 then
        search(args[2])
    end