import sys
import time

def progressbar(it, prefix="", size=60, out=sys.stdout): 
    count = len(it)
    def show(j):
        x = int(size*j/count)
        print("{}[{}{}] {}/{}".format(prefix, u"█"*x, "."*(size-x), j, count),
                end='\r', file=out, flush=True)
    show(0)
    for i, item in enumerate(it):
        yield item
        show(i+1)
    print("", flush=True, file=out)

def bordered(text):
    lines = text.splitlines()
    width = max(len(s) for s in lines)
    res = ['┌' + '─' * width + '┐']
    for s in lines:
        res.append('│' + (s + ' ' * width)[:width] + '│')
    res.append('└' + '─' * width + '┘')
    return '\n'.join(res)

def underlined(text):
    lines = text.splitlines()
    width = max(len(s) for s in lines)
    res=[]
    for s in lines:
        res.append(s)
    res.append('─' * width)
    return '\n'.join(res)

def print_welcome(script_version, compiler, compiler_version, mpi, mpi_version, instDir, installs):
    out = underlined("Patricks Simple Library Installer " + script_version)
    out = out + "\n" + "Compiler: " + compiler.upper() + ", Version: " + compiler_version
    out = out + "\n" + "MPI: " + mpi.upper() + ", Version: " + mpi_version
    out = out + "\n" + "Install Directory: "+instDir
    out = out + "\n"
    out = out + "\n" + "The following Libraries will be installed:"
    for lib in installs:
        out = out + "\n" + lib['name'] + " v." + lib['version']
    print(bordered(out) + "\n")

    # short sleep to enable user to abprt if selected options are wrong
    for i in progressbar(range(5), "Waiting 5s to start build: ",10):
        time.sleep(1)

    print("\n")