from __future__ import annotations

import shlex

from yuxi.channel.extensions.line.actions import create_message_action, create_uri_action, create_postback_action
from yuxi.channel.extensions.line.template_messages import (
    create_buttons_template,
    create_confirm_template,
    create_image_carousel_template,
    create_image_carousel_column,
    create_yes_no_confirm,
    create_button_menu,
    create_link_menu,
    create_product_carousel,
    to_template_message,
)
from yuxi.channel.extensions.line.flex_templates import (
    create_receipt_card,
    create_event_card,
    create_agenda_card,
    create_media_player_card,
    create_device_control_card,
    create_apple_tv_remote,
)


LINE_CARD_COMMANDS: dict[str, dict] = {
    "info": {
        "syntax": '/card info "Title" "Body" ["Footer"]',
        "description": "信息卡片（标题+正文+可选页脚）",
    },
    "image": {
        "syntax": '/card image "Title" "Caption" --url <image-url>',
        "description": "图片卡片",
    },
    "action": {
        "syntax": '/card action "Title" "Body" --actions "Btn1|url1,Btn2|/cmd"',
        "description": "操作卡片（自动识别 URL/命令/postback）",
    },
    "list": {
        "syntax": '/card list "Title" "Item1|Desc1,Item2|Desc2"',
        "description": "列表卡片",
    },
    "receipt": {
        "syntax": '/card receipt "Title" "Item1:$10,Item2:$20" --total "$30"',
        "description": "收据/摘要卡片",
    },
    "confirm": {
        "syntax": '/card confirm "Question?" --yes "Yes|data" --no "No|data"',
        "description": "确认对话框",
    },
    "buttons": {
        "syntax": '/card buttons "Title" "Text" --actions "Btn1|url,Btn2|data"',
        "description": "按钮模板",
    },
}


def parse_card_command(text: str) -> dict | None:
    if not text.startswith("/card "):
        return None

    args_str = text[6:].strip()
    try:
        parts = shlex.split(args_str)
    except ValueError:
        return None

    if not parts:
        return None

    card_type = parts[0].lower()
    if card_type not in LINE_CARD_COMMANDS:
        return None

    positional: list[str] = []
    flags: dict[str, str] = {}
    current_flag: str | None = None

    for item in parts[1:]:
        if item.startswith("--"):
            current_flag = item[2:]
            flags[current_flag] = ""
        elif current_flag:
            flags[current_flag] = item
            current_flag = None
        else:
            positional.append(item)

    return {
        "type": card_type,
        "positional": positional,
        "flags": flags,
    }


def build_card_message(parsed: dict) -> dict | None:
    card_type = parsed["type"]
    positional = parsed.get("positional", [])
    flags = parsed.get("flags", {})

    match card_type:
        case "info":
            title = positional[0] if len(positional) > 0 else "Info"
            body = positional[1] if len(positional) > 1 else ""
            footer = positional[2] if len(positional) > 2 else None
            return create_info_card(title, body, footer)
        case "image":
            title = positional[0] if len(positional) > 0 else "Image"
            caption = positional[1] if len(positional) > 1 else ""
            url = flags.get("url", "")
            return create_image_card(title, caption, url)
        case "action":
            title = positional[0] if len(positional) > 0 else "Actions"
            body = positional[1] if len(positional) > 1 else ""
            actions_str = flags.get("actions", "")
            return create_action_card(title, body, actions_str)
        case "list":
            title = positional[0] if len(positional) > 0 else "List"
            items_str = positional[1] if len(positional) > 1 else ""
            return create_list_card(title, items_str)
        case "receipt":
            title = positional[0] if len(positional) > 0 else "Receipt"
            items_str = positional[1] if len(positional) > 1 else ""
            total = flags.get("total")
            footer = flags.get("footer")
            return create_receipt_card_command(title, items_str, total, footer)
        case "confirm":
            question = positional[0] if positional else "Are you sure?"
            yes_data = flags.get("yes", "Yes|yes")
            no_data = flags.get("no", "No|no")
            return create_confirm_card(question, yes_data, no_data)
        case "buttons":
            title = positional[0] if len(positional) > 0 else "Menu"
            text = positional[1] if len(positional) > 1 else ""
            actions_str = flags.get("actions", "")
            return create_buttons_card(title, text, actions_str)
        case _:
            return None


def create_info_card(title: str, body: str, footer: str | None = None) -> dict:
    contents = {
        "type": "bubble",
        "body": {
            "type": "box",
            "layout": "vertical",
            "contents": [
                {"type": "text", "text": title, "weight": "bold", "size": "xl", "wrap": True},
                {"type": "text", "text": body, "size": "md", "wrap": True, "margin": "md"},
            ],
        },
    }
    if footer:
        contents["footer"] = {
            "type": "box",
            "layout": "vertical",
            "contents": [
                {"type": "text", "text": footer, "size": "xs", "color": "#AAAAAA", "wrap": True},
            ],
        }
    return {"type": "flex", "altText": title[:400], "contents": contents}


def create_image_card(title: str, caption: str, url: str) -> dict:
    return {
        "type": "flex",
        "altText": title[:400],
        "contents": {
            "type": "bubble",
            "hero": {
                "type": "image",
                "url": url,
                "size": "full",
                "aspectRatio": "16:9",
                "aspectMode": "cover",
            },
            "body": {
                "type": "box",
                "layout": "vertical",
                "contents": [
                    {"type": "text", "text": title, "weight": "bold", "size": "lg", "wrap": True},
                    {"type": "text", "text": caption, "size": "sm", "wrap": True, "color": "#888888",
                     "margin": "md"},
                ],
            },
        },
    }


def create_action_card(title: str, body: str, actions_str: str) -> dict:
    actions = parse_actions(actions_str)
    return create_buttons_template(
        title=title,
        text=body,
        actions=actions,
    )


def create_list_card(title: str, items_str: str) -> dict:
    items: list[tuple[str, str]] = []
    for item in items_str.split(","):
        parts = item.strip().split("|", 1)
        label = parts[0].strip()
        desc = parts[1].strip() if len(parts) > 1 else ""
        items.append((label, desc))

    return create_receipt_card(title, items)


def create_receipt_card_command(title: str, items_str: str, total: str | None, footer: str | None) -> dict:
    items: list[tuple[str, str]] = []
    for item in items_str.split(","):
        parts = item.strip().split(":", 1)
        label = parts[0].strip()
        value = parts[1].strip() if len(parts) > 1 else ""
        items.append((label, value))

    return create_receipt_card(title, items, total=total, footer=footer)


def create_confirm_card(question: str, yes_data: str, no_data: str) -> dict:
    yes_label, yes_d = _split_label_data(yes_data, "Yes", "yes")
    no_label, no_d = _split_label_data(no_data, "No", "no")
    action_type = _detect_action_type(yes_d)
    confirm_action = _build_action(action_type, yes_label, yes_d)
    cancel_action = _build_action(_detect_action_type(no_d), no_label, no_d)

    template = create_confirm_template(question, confirm_action, cancel_action)
    return to_template_message(question, template)


def create_buttons_card(title: str, text: str, actions_str: str) -> dict:
    actions = parse_actions(actions_str)
    template = create_buttons_template(title=title, text=text, actions=actions)
    return to_template_message(title, template)


def parse_actions(actions_str: str) -> list[dict]:
    actions: list[dict] = []
    if not actions_str:
        return actions

    for item in actions_str.split(","):
        parts = item.strip().split("|", 1)
        label = parts[0].strip()
        data = parts[1].strip() if len(parts) > 1 else label
        action_type = _detect_action_type(data)
        actions.append(_build_action(action_type, label, data))

    return actions


def _split_label_data(raw: str, default_label: str, default_data: str) -> tuple[str, str]:
    if "|" in raw:
        parts = raw.split("|", 1)
        return parts[0].strip(), parts[1].strip()
    return default_label, raw if raw else default_data


def _detect_action_type(data: str) -> str:
    if data.startswith(("http://", "https://")):
        return "uri"
    if "=" in data and ":" not in data:
        return "postback"
    return "message"


def _build_action(action_type: str, label: str, data: str) -> dict:
    match action_type:
        case "uri":
            return {"type": "uri", "label": label[:20], "uri": data}
        case "postback":
            return {"type": "postback", "label": label[:20], "data": data}
        case _:
            return {"type": "message", "label": label[:20], "text": data}


def create_image_carousel_column(
    image_url: str,
    action_type: str = "uri",
    label: str = "",
    data: str = "",
) -> dict:
    return {
        "imageUrl": image_url,
        "action": _build_action(action_type, label, data),
    }