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# Copyright 2024 Bytedance Ltd. and/or its affiliates
# Copyright 2022 EleutherAI and the HuggingFace Inc. team. All rights reserved.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Adapted from https://github.com/EleutherAI/lm-evaluation-harness/blob/main/lm_eval/tasks/hendrycks_math/utils.py


def compute_score(completion, ground_truth) -> float:
    retval = 0.0
    try:
        # string_in_last_boxed = last_boxed_only_string(solution_str)
        string_in_first_boxed = first_boxed_only_string(completion)
        ground_truth_in_last_boxed = last_boxed_only_string(ground_truth)
        if string_in_first_boxed is not None:
            answer = remove_boxed(string_in_first_boxed)
            ground_truth = remove_boxed(ground_truth_in_last_boxed)
            if is_equiv(answer, ground_truth):
                retval = 1.0
    except Exception as e:
        print(e)

    return retval


# string normalization from https://github.com/EleutherAI/lm-evaluation-harness/blob/master/lm_eval/tasks/hendrycks_math.py
def is_equiv(str1, str2, verbose=False):
    if str1 is None and str2 is None:
        print("WARNING: Both None")
        return True
    if str1 is None or str2 is None:
        return False

    try:
        ss1 = strip_string(str1)
        ss2 = strip_string(str2)
        if verbose:
            print(ss1, ss2)
        return ss1 == ss2
    except Exception:
        return str1 == str2


def remove_boxed(s):
    if "\\boxed " in s:
        left = "\\boxed "
        assert s[: len(left)] == left
        return s[len(left) :]

    left = "\\boxed{"

    assert s[: len(left)] == left
    assert s[-1] == "}"

    return s[len(left) : -1]

def first_boxed_only_string(string):
    if "\\boxed " in string:
        return "\\boxed " + string.split("\\boxed ")[1].split("$")[0]

    idx = string.find("\\boxed")
    if idx < 0:
        idx = string.find("\\fbox")
        if idx < 0:
            return None

    i = idx
    right_brace_idx = None
    num_left_braces_open = 0
    while i < len(string):
        if string[i] == "{":
            num_left_braces_open += 1
        if string[i] == "}":
            num_left_braces_open -= 1
            if num_left_braces_open == 0:
                right_brace_idx = i
                break
        i += 1

    retval = None if right_brace_idx is None else string[idx : right_brace_idx + 1]

    return retval


def last_boxed_only_string(string):
    idx = string.rfind("\\boxed")
    if "\\boxed " in string:
        return "\\boxed " + string.split("\\boxed ")[-1].split("$")[0]
    if idx < 0:
        idx = string.rfind("\\fbox")
        if idx < 0:
            return None

    i = idx
    right_brace_idx = None
    num_left_braces_open = 0
    while i < len(string):
        if string[i] == "{":
            num_left_braces_open += 1
        if string[i] == "}":
            num_left_braces_open -= 1
            if num_left_braces_open == 0:
                right_brace_idx = i
                break
        i += 1

    retval = None if right_brace_idx is None else string[idx : right_brace_idx + 1]

    return retval


def fix_fracs(string):
    substrs = string.split("\\frac")
    new_str = substrs[0]
    if len(substrs) > 1:
        substrs = substrs[1:]
        for substr in substrs:
            new_str += "\\frac"
            if substr[0] == "{":
                new_str += substr
            else:
                try:
                    assert len(substr) >= 2
                except:  # noqa: E722
                    return string
                a = substr[0]
                b = substr[1]
                if b != "{":
                    if len(substr) > 2:
                        post_substr = substr[2:]
                        new_str += "{" + a + "}{" + b + "}" + post_substr
                    else:
                        new_str += "{" + a + "}{" + b + "}"
                else:
                    if len(substr) > 2:
                        post_substr = substr[2:]
                        new_str += "{" + a + "}" + b + post_substr
                    else:
                        new_str += "{" + a + "}" + b
    string = new_str
    return string


def fix_a_slash_b(string):
    if len(string.split("/")) != 2:
        return string
    a = string.split("/")[0]
    b = string.split("/")[1]
    try:
        a = int(a)
        b = int(b)
        assert string == "{}/{}".format(a, b)
        new_string = "\\frac{" + str(a) + "}{" + str(b) + "}"
        return new_string
    except:  # noqa: E722
        return string


def remove_right_units(string):
    # "\\text{ " only ever occurs (at least in the val set) when describing units
    if "\\text{ " in string:
        splits = string.split("\\text{ ")
        assert len(splits) == 2
        return splits[0]
    else:
        return string


def fix_sqrt(string):
    if "\\sqrt" not in string:
        return string
    splits = string.split("\\sqrt")
    new_string = splits[0]
    for split in splits[1:]:
        if split[0] != "{":
            a = split[0]
            new_substr = "\\sqrt{" + a + "}" + split[1:]
        else:
            new_substr = "\\sqrt" + split
        new_string += new_substr
    return new_string


def strip_string(string):
    # linebreaks
    string = string.replace("\n", "")

    # remove inverse spaces
    string = string.replace("\\!", "")

    # replace \\ with \
    string = string.replace("\\\\", "\\")

    # replace tfrac and dfrac with frac
    string = string.replace("tfrac", "frac")
    string = string.replace("dfrac", "frac")

    # remove \left and \right
    string = string.replace("\\left", "")
    string = string.replace("\\right", "")

    # Remove circ (degrees)
    string = string.replace("^{\\circ}", "")
    string = string.replace("^\\circ", "")

    # remove dollar signs
    string = string.replace("\\$", "")

    # remove units (on the right)
    string = remove_right_units(string)

    # remove percentage
    string = string.replace("\\%", "")
    string = string.replace("\%", "")  # noqa: W605

    # " 0." equivalent to " ." and "{0." equivalent to "{." Alternatively, add "0" if "." is the start of the string
    string = string.replace(" .", " 0.")
    string = string.replace("{.", "{0.")
    # if empty, return empty string
    if len(string) == 0:
        return string
    if string[0] == ".":
        string = "0" + string

    # to consider: get rid of e.g. "k = " or "q = " at beginning
    if len(string.split("=")) == 2 and len(string.split("=")[0]) <= 2:
        string = string.split("=")[1]

    # fix sqrt3 --> sqrt{3}
    string = fix_sqrt(string)

    # remove spaces
    string = string.replace(" ", "")

    # \frac1b or \frac12 --> \frac{1}{b} and \frac{1}{2}, etc. Even works with \frac1{72} (but not \frac{72}1).
    # Also does a/b --> \\frac{a}{b}
    string = fix_fracs(string)

    # manually change 0.5 --> \frac{1}{2}
    if string == "0.5":
        string = "\\frac{1}{2}"

    # NOTE: X/Y changed to \frac{X}{Y} in dataset, but in simple cases fix in case the model output is X/Y
    string = fix_a_slash_b(string)

    return string

	# Copyright 2024 Bytedance Ltd. and/or its affiliates
	# Copyright 2022 EleutherAI and the HuggingFace Inc. team. All rights reserved.
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.
	# Adapted from https://github.com/EleutherAI/lm-evaluation-harness/blob/main/lm_eval/tasks/hendrycks_math/utils.py


	def compute_score(completion, ground_truth) -> float:
	retval = 0.0
	try:
	# string_in_last_boxed = last_boxed_only_string(solution_str)
	string_in_first_boxed = first_boxed_only_string(completion)
	ground_truth_in_last_boxed = last_boxed_only_string(ground_truth)
	if string_in_first_boxed is not None:
	answer = remove_boxed(string_in_first_boxed)
	ground_truth = remove_boxed(ground_truth_in_last_boxed)
	if is_equiv(answer, ground_truth):
	retval = 1.0
	except Exception as e:
	print(e)

	return retval


	# string normalization from https://github.com/EleutherAI/lm-evaluation-harness/blob/master/lm_eval/tasks/hendrycks_math.py
	def is_equiv(str1, str2, verbose=False):
	if str1 is None and str2 is None:
	print("WARNING: Both None")
	return True
	if str1 is None or str2 is None:
	return False

	try:
	ss1 = strip_string(str1)
	ss2 = strip_string(str2)
	if verbose:
	print(ss1, ss2)
	return ss1 == ss2
	except Exception:
	return str1 == str2


	def remove_boxed(s):
	if "\\boxed " in s:
	left = "\\boxed "
	assert s[: len(left)] == left
	return s[len(left) :]

	left = "\\boxed{"

	assert s[: len(left)] == left
	assert s[-1] == "}"

	return s[len(left) : -1]

	def first_boxed_only_string(string):
	if "\\boxed " in string:
	return "\\boxed " + string.split("\\boxed ")[1].split("$")[0]

	idx = string.find("\\boxed")
	if idx < 0:
	idx = string.find("\\fbox")
	if idx < 0:
	return None

	i = idx
	right_brace_idx = None
	num_left_braces_open = 0
	while i < len(string):
	if string[i] == "{":
	num_left_braces_open += 1
	if string[i] == "}":
	num_left_braces_open -= 1
	if num_left_braces_open == 0:
	right_brace_idx = i
	break
	i += 1

	retval = None if right_brace_idx is None else string[idx : right_brace_idx + 1]

	return retval


	def last_boxed_only_string(string):
	idx = string.rfind("\\boxed")
	if "\\boxed " in string:
	return "\\boxed " + string.split("\\boxed ")[-1].split("$")[0]
	if idx < 0:
	idx = string.rfind("\\fbox")
	if idx < 0:
	return None

	i = idx
	right_brace_idx = None
	num_left_braces_open = 0
	while i < len(string):
	if string[i] == "{":
	num_left_braces_open += 1
	if string[i] == "}":
	num_left_braces_open -= 1
	if num_left_braces_open == 0:
	right_brace_idx = i
	break
	i += 1

	retval = None if right_brace_idx is None else string[idx : right_brace_idx + 1]

	return retval


	def fix_fracs(string):
	substrs = string.split("\\frac")
	new_str = substrs[0]
	if len(substrs) > 1:
	substrs = substrs[1:]
	for substr in substrs:
	new_str += "\\frac"
	if substr[0] == "{":
	new_str += substr
	else:
	try:
	assert len(substr) >= 2
	except: # noqa: E722
	return string
	a = substr[0]
	b = substr[1]
	if b != "{":
	if len(substr) > 2:
	post_substr = substr[2:]
	new_str += "{" + a + "}{" + b + "}" + post_substr
	else:
	new_str += "{" + a + "}{" + b + "}"
	else:
	if len(substr) > 2:
	post_substr = substr[2:]
	new_str += "{" + a + "}" + b + post_substr
	else:
	new_str += "{" + a + "}" + b
	string = new_str
	return string


	def fix_a_slash_b(string):
	if len(string.split("/")) != 2:
	return string
	a = string.split("/")[0]
	b = string.split("/")[1]
	try:
	a = int(a)
	b = int(b)
	assert string == "{}/{}".format(a, b)
	new_string = "\\frac{" + str(a) + "}{" + str(b) + "}"
	return new_string
	except: # noqa: E722
	return string


	def remove_right_units(string):
	# "\\text{ " only ever occurs (at least in the val set) when describing units
	if "\\text{ " in string:
	splits = string.split("\\text{ ")
	assert len(splits) == 2
	return splits[0]
	else:
	return string


	def fix_sqrt(string):
	if "\\sqrt" not in string:
	return string
	splits = string.split("\\sqrt")
	new_string = splits[0]
	for split in splits[1:]:
	if split[0] != "{":
	a = split[0]
	new_substr = "\\sqrt{" + a + "}" + split[1:]
	else:
	new_substr = "\\sqrt" + split
	new_string += new_substr
	return new_string


	def strip_string(string):
	# linebreaks
	string = string.replace("\n", "")

	# remove inverse spaces
	string = string.replace("\\!", "")

	# replace \\ with \
	string = string.replace("\\\\", "\\")

	# replace tfrac and dfrac with frac
	string = string.replace("tfrac", "frac")
	string = string.replace("dfrac", "frac")

	# remove \left and \right
	string = string.replace("\\left", "")
	string = string.replace("\\right", "")

	# Remove circ (degrees)
	string = string.replace("^{\\circ}", "")
	string = string.replace("^\\circ", "")

	# remove dollar signs
	string = string.replace("\\$", "")

	# remove units (on the right)
	string = remove_right_units(string)

	# remove percentage
	string = string.replace("\\%", "")
	string = string.replace("\%", "") # noqa: W605

	# " 0." equivalent to " ." and "{0." equivalent to "{." Alternatively, add "0" if "." is the start of the string
	string = string.replace(" .", " 0.")
	string = string.replace("{.", "{0.")
	# if empty, return empty string
	if len(string) == 0:
	return string
	if string[0] == ".":
	string = "0" + string

	# to consider: get rid of e.g. "k = " or "q = " at beginning
	if len(string.split("=")) == 2 and len(string.split("=")[0]) <= 2:
	string = string.split("=")[1]

	# fix sqrt3 --> sqrt{3}
	string = fix_sqrt(string)

	# remove spaces
	string = string.replace(" ", "")

	# \frac1b or \frac12 --> \frac{1}{b} and \frac{1}{2}, etc. Even works with \frac1{72} (but not \frac{72}1).
	# Also does a/b --> \\frac{a}{b}
	string = fix_fracs(string)

	# manually change 0.5 --> \frac{1}{2}
	if string == "0.5":
	string = "\\frac{1}{2}"

	# NOTE: X/Y changed to \frac{X}{Y} in dataset, but in simple cases fix in case the model output is X/Y
	string = fix_a_slash_b(string)

	return string