# 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_structured_outputs_choices():
    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"
"""