"""

    Test configuration descriptions for mira.

"""

import os

from os import path

from glob import glob

import subprocess

import re

import util

# build and evaluation tools

def prepare_isabelle_repository(loc_isabelle, loc_contrib, loc_dependency_heaps, parallelism = True):

    loc_contrib = path.expanduser(loc_contrib)

    if not path.exists(loc_contrib):

        raise IOError('Bad file: %s' % loc_contrib)

    subprocess.check_call(['ln', '-s', loc_contrib, '%s/contrib' % loc_isabelle])

    contributed_components = path.join(loc_isabelle, 'Admin', 'contributed_components')

    if path.exists(contributed_components):

        components = []

        for component in util.readfile_lines(contributed_components):

            loc_component = path.join(loc_isabelle, component)

            if path.exists(loc_component):

                components.append(loc_component)

        writer = open(path.join(loc_isabelle, 'etc', 'components'), 'a')

        for component in components:

            writer.write(component + '\n')

        writer.close()

    if loc_dependency_heaps:

        isabelle_path = loc_dependency_heaps + '/$ISABELLE_IDENTIFIER:$ISABELLE_OUTPUT'

    else:

        isabelle_path = '$ISABELLE_OUTPUT'

    if parallelism:

        parallelism_options = '-M max'

    else:

        parallelism_options = '-M 1 -q 0'

    extra_settings = '''

ISABELLE_HOME_USER="$ISABELLE_HOME/home_user"

ISABELLE_OUTPUT="$ISABELLE_HOME/heaps"

ISABELLE_BROWSER_INFO="$ISABELLE_HOME/browser_info"

ISABELLE_PATH="%s"

ISABELLE_USEDIR_OPTIONS="$ISABELLE_USEDIR_OPTIONS %s -t true -v true -d pdf -g true -i true"

''' % (isabelle_path, parallelism_options)

    writer = open(path.join(loc_isabelle, 'etc', 'settings'), 'a')

    writer.write(extra_settings)

    writer.close()

def extract_isabelle_run_timing(logdata):

    def to_secs(h, m, s):

        return (int(h) * 60 + int(m)) * 60 + int(s)

    pat = r'Finished (\S+) \((\d+):(\d+):(\d+) elapsed time, (\d+):(\d+):(\d+) cpu time'

    pat2 = r'Timing (\S+) \((\d+) threads, (\d+\.\d+)s elapsed time, (\d+\.\d+)s cpu time, (\d+\.\d+)s GC time\)'

    t = dict((name, {'elapsed': to_secs(eh,em,es), 'cpu': to_secs(ch,cm,cs)})

             for name, eh, em, es, ch, cm, cs in re.findall(pat, logdata))

    for name, threads, elapsed, cpu, gc in re.findall(pat2, logdata):

        if name not in t:

            t[name] = {}

        t[name]['threads'] = int(threads)

        t[name]['elapsed_inner'] = elapsed

        t[name]['cpu_inner'] = cpu

        t[name]['gc'] = gc

    return t

def extract_isabelle_run_summary(logdata):

    re_error = re.compile(r'^(?:make: )?\*\*\* (.*)$', re.MULTILINE)

    summary = '\n'.join(re_error.findall(logdata))

    if summary == '':

        summary = 'ok'

    return summary

def isabelle_usedir(env, isa_path, isabelle_usedir_opts, base_image, dir_name):

    return env.run_process('%s/bin/isabelle' % isa_path, 'usedir',

        isabelle_usedir_opts, base_image, dir_name)

def isabelle_dependency_only(env, case, paths, dep_paths, playground):

    p = paths[0]

    result = path.join(p, 'heaps')

    os.makedirs(result)

    for dep_path in dep_paths:

        subprocess.check_call(['cp', '-R'] + glob(dep_path + '/*') + [result])

    return (True, 'ok', {}, {}, result)

def build_isabelle_image(subdir, base, img, env, case, paths, dep_paths, playground):

    p = paths[0]

    dep_path = dep_paths[0]

    prepare_isabelle_repository(p, env.settings.contrib, dep_path)

    os.chdir(path.join(p, 'src', subdir))

    (return_code, log) = isabelle_usedir(env, p, '-b', base, img)

    result = path.join(p, 'heaps')

    return (return_code == 0, extract_isabelle_run_summary(log),

      {'timing': extract_isabelle_run_timing(log)}, {'log': log}, result)

def isabelle_makeall(env, case, paths, dep_paths, playground):

    p = paths[0]

    dep_path = dep_paths[0]

    prepare_isabelle_repository(p, env.settings.contrib, dep_path)

    os.chdir(p)

    (return_code, log) = env.run_process('%s/bin/isabelle' % p, 'makeall', '-k', 'all')

    return (return_code == 0, extract_isabelle_run_summary(log),

      {'timing': extract_isabelle_run_timing(log)}, {'log': log}, None)

# Isabelle configurations

@configuration(repos = [Isabelle], deps = [])

def Pure(env, case, paths, dep_paths, playground):

    """Pure image"""

    p = paths[0]

    prepare_isabelle_repository(p, env.settings.contrib, '')

    os.chdir(path.join(p, 'src', 'Pure'))

    (return_code, log) = env.run_process('%s/bin/isabelle' % p, 'make', 'Pure')

    result = path.join(p, 'heaps')

    return (return_code == 0, extract_isabelle_run_summary(log),

      {'timing': extract_isabelle_run_timing(log)}, {'log': log}, result)

@configuration(repos = [Isabelle], deps = [(Pure, [0])])

def FOL(*args):

    """FOL image"""

    return build_isabelle_image('FOL', 'Pure', 'FOL', *args)

@configuration(repos = [Isabelle], deps = [(Pure, [0])])

def HOL(*args):

    """HOL image"""

    return build_isabelle_image('HOL', 'Pure', 'HOL', *args)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def HOL_HOLCF(*args):

    """HOL-HOLCF image"""

    return build_isabelle_image('HOL/HOLCF', 'HOL', 'HOLCF', *args)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def HOL_Nominal(*args):

    """HOL-Nominal image"""

    return build_isabelle_image('HOL/Nominal', 'HOL', 'HOL-Nominal', *args)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def HOL_Word(*args):

    """HOL-Word image"""

    return build_isabelle_image('HOL/Word', 'HOL', 'HOL-Word', *args)

@configuration(repos = [Isabelle], deps = [

    (HOL, [0]),

    (HOL_HOLCF, [0]),

    (HOL_Nominal, [0]),

    (HOL_Word, [0])

  ])

def AFP_images(*args):

    """Isabelle images needed for the AFP"""

    return isabelle_dependency_only(*args)

@configuration(repos = [Isabelle], deps = [

    (AFP_images, [0])

  ])

def Isabelle_makeall(*args):

    """Isabelle makeall"""

    return isabelle_makeall(*args)

# Mutabelle configurations

def invoke_mutabelle(theory, env, case, paths, dep_paths, playground):

    """Mutant testing for counterexample generators in Isabelle"""

    (loc_isabelle,) = paths

    (dep_isabelle,) = dep_paths

    prepare_isabelle_repository(loc_isabelle, env.settings.contrib, dep_isabelle)

    os.chdir(loc_isabelle)

    (return_code, log) = env.run_process('bin/isabelle',

      'mutabelle', '-O', playground, theory)

    try:

        mutabelle_log = util.readfile(path.join(playground, 'log'))

    except IOError:

        mutabelle_log = ''

    return (return_code == 0 and mutabelle_log != '', extract_isabelle_run_summary(log),

      {'timing': extract_isabelle_run_timing(log)},

      {'log': log, 'mutabelle_log': mutabelle_log}, None)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def Mutabelle_Relation(*args):

    """Mutabelle regression suite on Relation theory"""

    return invoke_mutabelle('Relation', *args)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def Mutabelle_List(*args):

    """Mutabelle regression suite on List theory"""

    return invoke_mutabelle('List', *args)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def Mutabelle_Set(*args):

    """Mutabelle regression suite on Set theory"""

    return invoke_mutabelle('Set', *args)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def Mutabelle_Map(*args):

    """Mutabelle regression suite on Map theory"""

    return invoke_mutabelle('Map', *args)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def Mutabelle_Divides(*args):

    """Mutabelle regression suite on Divides theory"""

    return invoke_mutabelle('Divides', *args)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def Mutabelle_MacLaurin(*args):

    """Mutabelle regression suite on MacLaurin theory"""

    return invoke_mutabelle('MacLaurin', *args)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def Mutabelle_Fun(*args):

    """Mutabelle regression suite on Fun theory"""

    return invoke_mutabelle('Fun', *args)

# Judgement Day configurations

judgement_day_provers = ('e', 'spass', 'vampire', 'z3', 'cvc3', 'yices')

def judgement_day(base_path, theory, opts, env, case, paths, dep_paths, playground):

    """Judgement Day regression suite"""

    isa = paths[0]

    dep_path = dep_paths[0]

    os.chdir(path.join(playground, '..', base_path)) # Mirabelle requires specific cwd

    prepare_isabelle_repository(isa, env.settings.contrib, dep_path)

    output = {}

    success_rates = {}

    some_success = False

    for atp in judgement_day_provers:

        log_dir = path.join(playground, 'mirabelle_log_' + atp)

        os.makedirs(log_dir)

        cmd = ('%s/bin/isabelle mirabelle -q -O %s sledgehammer[prover=%s,%s] %s.thy'

               % (isa, log_dir, atp, opts, theory))

        os.system(cmd)

        output[atp] = util.readfile(path.join(log_dir, theory + '.log'))

        percentages = list(re.findall(r'Success rate: (\d+)%', output[atp]))

        if len(percentages) == 2:

            success_rates[atp] = {

                'sledgehammer': int(percentages[0]),

                'metis': int(percentages[1])}

            if success_rates[atp]['sledgehammer'] > 0:

                some_success = True

        else:

            success_rates[atp] = {}

    data = {'success_rates': success_rates}

    raw_attachments = dict((atp + "_output", output[atp]) for atp in judgement_day_provers)

    # FIXME: summary?

    return (some_success, '', data, raw_attachments, None)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def JD_NS(*args):

    """Judgement Day regression suite NS"""

    return judgement_day('Isabelle/src/HOL/Auth', 'NS_Shared', 'prover_timeout=10', *args)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def JD_FTA(*args):

    """Judgement Day regression suite FTA"""

    return judgement_day('Isabelle/src/HOL/Library', 'Fundamental_Theorem_Algebra', 'prover_timeout=10', *args)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def JD_Hoare(*args):

    """Judgement Day regression suite Hoare"""

    return judgement_day('Isabelle/src/HOL/IMPP', 'Hoare', 'prover_timeout=10', *args)

@configuration(repos = [Isabelle], deps = [(HOL, [0])])

def JD_SN(*args):

    """Judgement Day regression suite SN"""

    return judgement_day('Isabelle/src/HOL/Proofs/Lambda', 'StrongNorm', 'prover_timeout=10', *args)