# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project

import pytest


@pytest.fixture
def sample_prompts():
    return [
        "Hello, my name is",
        "The president of the United States is",
        "The capital of France is",
        "The future of AI is",
    ]


@pytest.fixture
def sample_token_ids():
    return [
        [0],
        [0, 1],
        [0, 2, 1],
        [0, 3, 1, 2],
    ]


@pytest.fixture
def sample_regex():
    return (r"((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.){3}"
            r"(25[0-5]|(2[0-4]|1\d|[1-9]|)\d)")


# Note: Ensure this only uses attributes compatible with xgrammar
@pytest.fixture
def sample_json_schema():
    return {
        "type": "object",
        "properties": {
            "name": {
                "type": "string"
            },
            "age": {
                "type": "integer"
            },
            "skills": {
                "type": "array",
                "items": {
                    "type": "string",
                }
            },
            "grade": {
                "type": "string",
                "pattern": "^[A-D]$"  # Regex pattern
            },
            "email": {
                "type": "string",
                "pattern": "^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}$"
            },
            "work_history": {
                "type": "array",
                "items": {
                    "type": "object",
                    "properties": {
                        "company": {
                            "type": "string"
                        },
                        "duration": {
                            "type": "number",
                            "minimum": 0.0,
                            "maximum": 100.0,  # Numeric range
                        },
                        "position": {
                            "type": "string"
                        }
                    },
                    "required": ["company", "duration", "position"],
                    "additionalProperties": False
                },
                "minItems": 0,
                "maxItems": 3
            }
        },
        "required":
        ["name", "age", "skills", "grade", "email", "work_history"],
        "additionalProperties": False
    }


# A schema unsupported by xgrammar
@pytest.fixture
def unsupported_json_schema():
    return {
        "type": "object",
        "properties": {
            "score": {
                "type": "integer",
                "multipleOf": 5  # Numeric multiple
            },
            "tags": {
                "type": "array",
                "items": {
                    "type": "string",
                    "minLength": 10,
                    "maxLength": 20
                }
            }
        },
        "required": ["score", "tags"],
        "additionalProperties": False
    }


@pytest.fixture
def sample_definition_json_schema():
    return {
        '$defs': {
            'Step': {
                'properties': {
                    'explanation': {
                        'title': 'Explanation',
                        'type': 'string'
                    },
                    'output': {
                        'title': 'Output',
                        'type': 'string'
                    }
                },
                'required': ['explanation', 'output'],
                'title': 'Step',
                'type': 'object'
            }
        },
        'properties': {
            'steps': {
                'items': {
                    '$ref': '#/$defs/Step'
                },
                'title': 'Steps',
                'type': 'array'
            },
            'final_answer': {
                'title': 'Final Answer',
                'type': 'string'
            }
        },
        'required': ['steps', 'final_answer'],
        'title': 'MathReasoning',
        'type': 'object',
        "additionalProperties": False
    }


@pytest.fixture
def sample_guided_choice():
    return [
        "Python", "Java", "JavaScript", "C++", "C#", "PHP", "TypeScript",
        "Ruby", "Swift", "Kotlin"
    ]


@pytest.fixture
def sample_sql_ebnf():
    return """
root ::= select_statement
select_statement ::= "SELECT" column "from" table "where" condition
column ::= "col_1" | "col_2"
table ::= "table_1" | "table_2"
condition ::= column "=" number
number ::= "1" | "2"
"""


@pytest.fixture
def sample_sql_lark():
    return ("""
start: select_statement
select_statement: "SELECT" column "from" table "where" condition
column: "col_1" | "col_2"
table: "table_1" | "table_2"
condition: column "=" number
number: "1" | "2"
""")