from __future__ import annotations

import logging
from typing import TYPE_CHECKING, Any

# fromapprove.controller.mastodon import templateEditor as mastodon_template_editor # If adapting
fromapprove.translation import translate as _

if TYPE_CHECKING:
    fromapprove.sessions.atprotosocial.session import Session as ATProtoSocialSession # Adjusted

logger = logging.getLogger(__name__)

# This file would handle the logic for a template editor specific to ATProtoSocial.
# A template editor allows users to customize how certain information or messages
# from ATProtoSocial are displayed in Approve.

# For ATProtoSocial, this might be less relevant initially if its content structure
# is simpler than Mastodon's, or if user-customizable templates are not a primary feature.
# However, having the structure allows for future expansion.

# Example: Customizing the format of a "new follower" notification, or how a "skeet" is displayed.

class ATProtoSocialTemplateEditor:
    def __init__(self, session: ATProtoSocialSession) -> None:
        self.session = session
        # self.user_id = session.user_id
        # self.config_prefix = f"sessions.atprotosocial.{self.user_id}.templates." # Example config path

    def get_editable_templates(self) -> list[dict[str, Any]]:
        """
        Returns a list of templates that the user can edit for ATProtoSocial.
        Each entry should describe the template, its purpose, and current value.
        """
        # This would typically fetch template definitions from a default set
        # and override with any user-customized versions from config.

        # Example structure for an editable template:
        # templates = [
        #     {
        #         "id": "new_follower_notification", # Unique ID for this template
        #         "name": _("New Follower Notification Format"),
        #         "description": _("Customize how new follower notifications from ATProtoSocial are displayed."),
        #         "default_template": "{{ actor.displayName }} (@{{ actor.handle }}) is now following you on ATProtoSocial!",
        #         "current_template": self._get_template_content("new_follower_notification"),
        #         "variables": [ # Available variables for this template
        #             {"name": "actor.displayName", "description": _("Display name of the new follower")},
        #             {"name": "actor.handle", "description": _("Handle of the new follower")},
        #             {"name": "actor.url", "description": _("URL to the new follower's profile")},
        #         ],
        #         "category": "notifications", # For grouping in UI
        #     },
        #     # Add more editable templates for ATProtoSocial here
        # ]
        # return templates
        return [] # Placeholder - no editable templates defined yet for ATProtoSocial

    def _get_template_content(self, template_id: str) -> str:
        """
        Retrieves the current content of a specific template, either user-customized or default.
        """
        # config_key = self.config_prefix + template_id
        # default_value = self._get_default_template_content(template_id)
        # return approve.config.config.get_value(config_key, default_value) # Example config access
        return self._get_default_template_content(template_id) # Placeholder

    def _get_default_template_content(self, template_id: str) -> str:
        """
        Returns the default content for a given template ID.
        """
        # This could be hardcoded or loaded from a defaults file.
        # if template_id == "new_follower_notification":
        #     return "{{ actor.displayName }} (@{{ actor.handle }}) is now following you on ATProtoSocial!"
        # # ... other default templates
        return "" # Placeholder

    async def save_template_content(self, template_id: str, content: str) -> bool:
        """
        Saves the user-customized content for a specific template.
        """
        # config_key = self.config_prefix + template_id
        # try:
        #     await approve.config.config.set_value(config_key, content) # Example config access
        #     logger.info(f"ATProtoSocial template '{template_id}' saved for user {self.user_id}.")
        #     return True
        # except Exception as e:
        #     logger.error(f"Error saving ATProtoSocial template '{template_id}' for user {self.user_id}: {e}")
        #     return False
        return False # Placeholder

    def get_template_preview(self, template_id: str, custom_content: str | None = None) -> str:
        """
        Generates a preview of a template using sample data.
        If custom_content is provided, it's used instead of the saved template.
        """
        # content_to_render = custom_content if custom_content is not None else self._get_template_content(template_id)
        # sample_data = self._get_sample_data_for_template(template_id)

        # try:
        #     # Use a templating engine (like Jinja2) to render the preview
        #     # from jinja2 import Template
        #     # template = Template(content_to_render)
        #     # preview = template.render(**sample_data)
        #     # return preview
        #     return f"Preview for '{template_id}': {content_to_render}" # Basic placeholder
        # except Exception as e:
        #     logger.error(f"Error generating preview for ATProtoSocial template '{template_id}': {e}")
        #     return _("Error generating preview.")
        return _("Template previews not yet implemented for ATProtoSocial.") # Placeholder

    def _get_sample_data_for_template(self, template_id: str) -> dict[str, Any]:
        """
        Returns sample data appropriate for previewing a specific template.
        """
        # if template_id == "new_follower_notification":
        #     return {
        #         "actor": {
        #             "displayName": "Test User",
        #             "handle": "testuser.bsky.social",
        #             "url": "https://bsky.app/profile/testuser.bsky.social"
        #         }
        #     }
        # # ... other sample data
        return {} # Placeholder

# Functions to be called by the main controller/handler for template editor actions.

async def get_editor_config(session: ATProtoSocialSession) -> dict[str, Any]:
    """
    Get the configuration needed to display the template editor for ATProtoSocial.
    """
    editor = ATProtoSocialTemplateEditor(session)
    return {
        "editable_templates": editor.get_editable_templates(),
        "help_text": _("Customize ATProtoSocial message formats. Use variables shown for each template."),
    }

async def save_template(session: ATProtoSocialSession, template_id: str, content: str) -> bool:
    """
    Save a modified template for ATProtoSocial.
    """
    editor = ATProtoSocialTemplateEditor(session)
    return await editor.save_template_content(template_id, content)

async def get_template_preview_html(session: ATProtoSocialSession, template_id: str, content: str) -> str:
    """
    Get an HTML preview for a template with given content.
    """
    editor = ATProtoSocialTemplateEditor(session)
    return editor.get_template_preview(template_id, custom_content=content)


logger.info("ATProtoSocial template editor module loaded (placeholders).")