"""ClickUp chat-facing tools for listing, querying, and resetting tasks."""

from __future__ import annotations

import logging

from . import tool

log = logging.getLogger(__name__)


def _get_clickup_client(ctx: dict):
    """Create a ClickUpClient from the agent's config."""
    from ..clickup import ClickUpClient

    cfg = ctx["config"].clickup
    if not cfg.api_token:
        return None
    return ClickUpClient(
        api_token=cfg.api_token,
        workspace_id=cfg.workspace_id,
        task_type_field_name=cfg.task_type_field_name,
    )


@tool(
    "clickup_query_tasks",
    "Query ClickUp live for tasks. Optionally filter by status (e.g. 'to do', 'in progress') "
    "and/or task type (e.g. 'Press Release'). Returns task name, ID, status, type, due date, "
    "and custom fields directly from the ClickUp API.",
    category="clickup",
)
def clickup_query_tasks(status: str = "", task_type: str = "", ctx: dict | None = None) -> str:
    """Query ClickUp API for tasks, optionally filtered by status and task type."""
    client = _get_clickup_client(ctx)
    if not client:
        return "Error: ClickUp API token not configured."

    cfg = ctx["config"].clickup
    if not cfg.space_id:
        return "Error: ClickUp space_id not configured."

    try:
        statuses = [status] if status else None
        tasks = client.get_tasks_from_space(cfg.space_id, statuses=statuses)
    except Exception as e:
        return f"Error querying ClickUp: {e}"
    finally:
        client.close()

    if task_type:
        tasks = [t for t in tasks if t.task_type.lower() == task_type.lower()]

    if not tasks:
        filters = []
        if status:
            filters.append(f"status='{status}'")
        if task_type:
            filters.append(f"type='{task_type}'")
        filter_str = " with " + ", ".join(filters) if filters else ""
        return f"No tasks found{filter_str}."

    lines = []
    for t in tasks:
        parts = [f"**{t.name}** (ID: {t.id})"]
        parts.append(f"  Status: {t.status} | Type: {t.task_type or '—'}")
        # Show custom fields that have values
        fields = {k: v for k, v in t.custom_fields.items() if v}
        if fields:
            field_strs = [f"{k}: {v}" for k, v in fields.items()]
            parts.append(f"  Fields: {', '.join(field_strs)}")
        parts.append(f"  URL: {t.url}")
        lines.append("\n".join(parts))

    return f"**ClickUp Tasks ({len(lines)}):**\n\n" + "\n\n".join(lines)


@tool(
    "clickup_list_tasks",
    "List ClickUp tasks in automation-related statuses (automation underway, "
    "outline review, internal review, error). Shows tasks currently being processed.",
    category="clickup",
)
def clickup_list_tasks(status: str = "", ctx: dict | None = None) -> str:
    """List ClickUp tasks in automation-related statuses."""
    client = _get_clickup_client(ctx)
    if not client:
        return "Error: ClickUp API token not configured."

    cfg = ctx["config"].clickup
    if not cfg.space_id:
        return "Error: ClickUp space_id not configured."

    # Query tasks in automation-related statuses
    automation_statuses = [
        cfg.automation_status,
        "outline review",
        cfg.review_status,
        cfg.error_status,
    ]
    if status:
        automation_statuses = [status]

    try:
        tasks = client.get_tasks_from_space(cfg.space_id, statuses=automation_statuses)
    except Exception as e:
        return f"Error querying ClickUp: {e}"
    finally:
        client.close()

    if not tasks:
        filter_note = f" with status '{status}'" if status else " in automation statuses"
        return f"No tasks found{filter_note}."

    lines = []
    for t in tasks:
        parts = [f"**{t.name}** (ID: {t.id})"]
        parts.append(f"  Status: {t.status} | Type: {t.task_type or '—'}")
        fields = {k: v for k, v in t.custom_fields.items() if v}
        if fields:
            field_strs = [f"{k}: {v}" for k, v in fields.items()]
            parts.append(f"  Fields: {', '.join(field_strs)}")
        lines.append("\n".join(parts))

    return f"**Automation Tasks ({len(lines)}):**\n\n" + "\n\n".join(lines)


@tool(
    "clickup_task_status",
    "Check the current status and details of a ClickUp task by its ID.",
    category="clickup",
)
def clickup_task_status(task_id: str, ctx: dict | None = None) -> str:
    """Get current status for a specific ClickUp task from the API."""
    client = _get_clickup_client(ctx)
    if not client:
        return "Error: ClickUp API token not configured."

    try:
        task = client.get_task(task_id)
    except Exception as e:
        return f"Error fetching task '{task_id}': {e}"
    finally:
        client.close()

    lines = [f"**Task: {task.name}** (ID: {task.id})"]
    lines.append(f"Status: {task.status}")
    lines.append(f"Type: {task.task_type or '—'}")
    if task.url:
        lines.append(f"URL: {task.url}")
    if task.due_date:
        lines.append(f"Due: {task.due_date}")
    if task.date_updated:
        lines.append(f"Updated: {task.date_updated}")
    fields = {k: v for k, v in task.custom_fields.items() if v}
    if fields:
        field_strs = [f"{k}: {v}" for k, v in fields.items()]
        lines.append(f"Fields: {', '.join(field_strs)}")

    return "\n".join(lines)


@tool(
    "clickup_reset_task",
    "Reset a ClickUp task to 'to do' status so it can be retried on the next poll. "
    "Use this when a task is stuck in an error or automation state.",
    category="clickup",
)
def clickup_reset_task(task_id: str, ctx: dict | None = None) -> str:
    """Reset a ClickUp task status to 'to do' for retry."""
    client = _get_clickup_client(ctx)
    if not client:
        return "Error: ClickUp API token not configured."

    cfg = ctx["config"].clickup
    reset_status = cfg.poll_statuses[0] if cfg.poll_statuses else "to do"

    try:
        client.update_task_status(task_id, reset_status)
        client.add_comment(
            task_id,
            f"Task reset to '{reset_status}' via chat command.",
        )
    except Exception as e:
        return f"Error resetting task '{task_id}': {e}"
    finally:
        client.close()

    return (
        f"Task '{task_id}' reset to '{reset_status}'. "
        f"It will be picked up on the next scheduler poll."
    )