94 lines
4.4 KiB
Python
94 lines
4.4 KiB
Python
"""RollCalc's minimal stdio MCP server."""
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from __future__ import annotations
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from typing import Any
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from rollcalc_mcp_tools import (
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analyze_transport_capacity_result,
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calculate_roll_diameter_result,
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get_article_result,
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)
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from transport_calculation import TransportPresetKey
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def create_server() -> Any:
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"""Create the stdio-only MCP server after the SDK is installed."""
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from mcp.server.fastmcp import FastMCP
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server = FastMCP("RollCalc")
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@server.tool()
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def get_article(
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article_number: str | None = None,
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article_name_hint: str | None = None,
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) -> dict[str, Any]:
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"""Resolve RollCalc article master data. article_number is text (including leading zeroes); optional article_name_hint preserves existing conflict and ambiguity checks."""
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return get_article_result(article_number, article_name_hint)
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@server.tool()
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def calculate_roll_diameter(
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roll_length_m: float | None = None,
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core_diameter_mm: float | None = None,
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thickness_mm: float | None = None,
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thickness_stddev_mm: float | None = None,
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article_number: str | None = None,
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article_name_hint: str | None = None,
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core_type: str | None = None,
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width_m: float | None = None,
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area_weight_g_m2: float | None = None,
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category: str | None = None,
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production_site: str | None = None,
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) -> dict[str, Any]:
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"""Calculate roll diameter and weight for one roll. roll_length_m is the material length on one roll in m; core_diameter_mm, thickness_mm, and thickness_stddev_mm are mm; width_m is m; and area_weight_g_m2 is g/m². Resolve an article or provide applicable manual material inputs. This MCP tool always returns roll_weight_kg when the required width_m and area_weight_g_m2 inputs are available. On success, transport_roll_inputs contains the browser-equivalent transport values; pass that bundle's fields unchanged to analyze_transport_capacity."""
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return calculate_roll_diameter_result(
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article_number=article_number,
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article_name_hint=article_name_hint,
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roll_length_m=roll_length_m,
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width_m=width_m,
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thickness_mm=thickness_mm,
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thickness_stddev_mm=thickness_stddev_mm,
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area_weight_g_m2=area_weight_g_m2,
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core_diameter_mm=core_diameter_mm,
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core_type=core_type,
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category=category,
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production_site=production_site,
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)
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@server.tool()
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def analyze_transport_capacity(
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roll_diameter_mm: float,
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core_diameter_mm: float,
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roll_width_m: float,
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roll_weight_kg: float,
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product_length_m: float,
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transport_preset: TransportPresetKey | None = None,
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length_m: float | None = None,
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width_m: float | None = None,
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height_m: float | None = None,
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max_weight_kg: float | None = None,
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margin_side_m: float | None = None,
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margin_ceiling_m: float | None = None,
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) -> dict[str, Any]:
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"""Analyze transport capacity for calculated rolls. For a chained request, first call get_article and calculate_roll_diameter, then pass every field from its transport_roll_inputs bundle unchanged: roll_diameter_mm, core_diameter_mm, roll_width_m, roll_weight_kg, and product_length_m. Do not choose among minimum, average, or maximum diameter; the bundle contains the browser-equivalent nominal transport diameter. product_length_m is used for reported m², not placement geometry. transport_preset must be one of the listed canonical identifiers: lkw_sattelzug means LKW Sattelzug / semi-trailer and lkw_tandem means LKW Tandem. Alternatively, supply all custom transport dimensions in m and max_weight_kg. This stateless tool does not recalculate a roll; roll_weight_kg is consumed exactly as supplied."""
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return analyze_transport_capacity_result(
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transport_preset=transport_preset,
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length_m=length_m,
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width_m=width_m,
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height_m=height_m,
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max_weight_kg=max_weight_kg,
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margin_side_m=margin_side_m,
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margin_ceiling_m=margin_ceiling_m,
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roll_diameter_mm=roll_diameter_mm,
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core_diameter_mm=core_diameter_mm,
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roll_width_m=roll_width_m,
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roll_weight_kg=roll_weight_kg,
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product_length_m=product_length_m,
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)
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return server
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if __name__ == "__main__":
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create_server().run(transport="stdio")
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