"""Gitea label operations MCP tools."""

from mcp.types import Tool, TextContent

from ..client import GiteaClient, GiteaClientError


def get_label_tools() -> list[Tool]:
    """Get label operation tool definitions.

    Returns:
        list: Tool definitions for label operations.
    """
    return [
        Tool(
            name="gitea_list_labels",
            description="List all labels in a Gitea repository",
            inputSchema={
                "type": "object",
                "properties": {
                    "owner": {
                        "type": "string",
                        "description": "Repository owner (user or organization)",
                    },
                    "repo": {
                        "type": "string",
                        "description": "Repository name",
                    },
                },
                "required": ["owner", "repo"],
            },
        ),
        Tool(
            name="gitea_create_label",
            description="Create a new label in a Gitea repository",
            inputSchema={
                "type": "object",
                "properties": {
                    "owner": {
                        "type": "string",
                        "description": "Repository owner (user or organization)",
                    },
                    "repo": {
                        "type": "string",
                        "description": "Repository name",
                    },
                    "name": {
                        "type": "string",
                        "description": "Label name",
                    },
                    "color": {
                        "type": "string",
                        "description": "Label color (hex without #, e.g., 'ff0000' for red)",
                    },
                    "description": {
                        "type": "string",
                        "description": "Label description (optional)",
                    },
                },
                "required": ["owner", "repo", "name", "color"],
            },
        ),
    ]


async def handle_label_tool(
    client: GiteaClient, name: str, arguments: dict
) -> list[TextContent]:
    """Handle label tool execution.

    Args:
        client: Gitea client instance.
        name: Tool name.
        arguments: Tool arguments.

    Returns:
        list: Tool response content.
    """
    try:
        async with client:
            if name == "gitea_list_labels":
                return await _list_labels(client, arguments)
            elif name == "gitea_create_label":
                return await _create_label(client, arguments)
            else:
                return [
                    TextContent(
                        type="text",
                        text=f"Unknown label tool: {name}",
                    )
                ]
    except GiteaClientError as e:
        return [
            TextContent(
                type="text",
                text=f"Gitea API error: {e}",
            )
        ]


async def _list_labels(client: GiteaClient, arguments: dict) -> list[TextContent]:
    """List labels in a repository.

    Args:
        client: Gitea client instance.
        arguments: Tool arguments with owner and repo.

    Returns:
        list: Label listing response.
    """
    owner = arguments["owner"]
    repo = arguments["repo"]

    labels = await client.get(f"/repos/{owner}/{repo}/labels")

    if not labels:
        return [
            TextContent(
                type="text",
                text=f"No labels found in {owner}/{repo}",
            )
        ]

    # Format labels for display
    lines = [f"Labels in {owner}/{repo}:", ""]
    for label in labels:
        color = label.get("color", "")
        desc = label.get("description", "")
        desc_text = f" - {desc}" if desc else ""
        lines.append(f"  • {label['name']} (#{color}){desc_text}")

    return [
        TextContent(
            type="text",
            text="\n".join(lines),
        )
    ]


async def _create_label(client: GiteaClient, arguments: dict) -> list[TextContent]:
    """Create a new label.

    Args:
        client: Gitea client instance.
        arguments: Tool arguments with owner, repo, name, color, and optional description.

    Returns:
        list: Creation response.
    """
    owner = arguments["owner"]
    repo = arguments["repo"]
    name = arguments["name"]
    color = arguments["color"].lstrip("#")  # Remove # if present
    description = arguments.get("description", "")

    payload = {
        "name": name,
        "color": color,
    }
    if description:
        payload["description"] = description

    label = await client.post(f"/repos/{owner}/{repo}/labels", payload)

    return [
        TextContent(
            type="text",
            text=f"Created label '{label['name']}' (#{label['color']}) in {owner}/{repo}",
        )
    ]