from PySide6.QtCore import Qt, Signal
from PySide6.QtGui import QPixmap, QPainter, QColor, QBrush
from PySide6.QtWidgets import QWidget, QVBoxLayout, QLabel, QPushButton, QHBoxLayout, QFrame


class ProfileView(QWidget):
    start_chat_clicked = Signal(dict)  # payload with user data
    follow_clicked = Signal(dict)

    def __init__(self, user: dict, parent=None):
        super().__init__(parent)
        self.user = user or {}
        root = QVBoxLayout(self)
        root.setContentsMargins(16, 16, 16, 16)
        root.setSpacing(12)

        # Card container
        card = QFrame()
        card.setObjectName("ProfileCard")
        card_layout = QVBoxLayout(card)
        card_layout.setContentsMargins(16, 16, 16, 16)
        card_layout.setSpacing(10)

        # Header: avatar + names
        header = QHBoxLayout()
        header.setSpacing(12)

        self.avatar = QLabel()
        self._set_avatar_placeholder()
        header.addWidget(self.avatar)

        names_box = QVBoxLayout()
        names_box.setSpacing(4)

        login = self.user.get("login") or "user"
        full_name = self.user.get("full_name") or self.user.get("custom_name") or ""
        bio = (self.user.get("profile") or {}).get("bio") if isinstance(self.user.get("profile"), dict) else None

        self.name_label = QLabel(full_name or "Пользователь")
        self.name_label.setObjectName("ProfileName")
        self.login_label = QLabel(f"@{login}")
        self.login_label.setObjectName("ProfileLogin")
        names_box.addWidget(self.name_label)
        names_box.addWidget(self.login_label)

        header.addLayout(names_box)
        header.addStretch(1)
        card_layout.addLayout(header)

        if bio:
            bio_label = QLabel(str(bio))
            bio_label.setObjectName("ProfileBio")
            bio_label.setWordWrap(True)
            card_layout.addWidget(bio_label)

        # Actions
        actions = QHBoxLayout()
        actions.setSpacing(8)
        self.message_btn = QPushButton("Написать сообщение")
        self.message_btn.setObjectName("ProfileActionPrimary")
        self.follow_btn = QPushButton("Подписаться")
        self.follow_btn.setObjectName("ProfileActionSecondary")
        actions.addWidget(self.message_btn)
        actions.addWidget(self.follow_btn)
        card_layout.addLayout(actions)

        root.addWidget(card)

        # Styles
        self.setStyleSheet("""
            #ProfileCard {
                border: 1px solid #e5e5ea;
                border-radius: 12px;
                background-color: rgba(0,0,0,0.02);
            }
            #ProfileName { font-size: 16px; font-weight: 600; }
            #ProfileLogin { font-size: 13px; color: #8e8e93; }
            #ProfileBio   { font-size: 13px; }
            QPushButton#ProfileActionPrimary {
                background-color: #0A84FF; color: white; border: none; border-radius: 10px; padding: 8px 12px;
            }
            QPushButton#ProfileActionPrimary:hover { background-color: #1B8CFF; }
            QPushButton#ProfileActionPrimary:pressed { background-color: #0a6ed1; }
            QPushButton#ProfileActionSecondary {
                background-color: transparent; color: #0A84FF; border: 1px solid rgba(10,132,255,0.4); border-radius: 10px; padding: 8px 12px;
            }
            QPushButton#ProfileActionSecondary:hover { background-color: rgba(10,132,255,0.06); }
            QPushButton#ProfileActionSecondary:pressed { background-color: rgba(10,132,255,0.14); }
        """)

        # Signals
        self.message_btn.clicked.connect(lambda: self.start_chat_clicked.emit(self.user))
        self.follow_btn.clicked.connect(lambda: self.follow_clicked.emit(self.user))

    def _set_avatar_placeholder(self, size: int = 72):
        pixmap = QPixmap(size, size)
        pixmap.fill(Qt.transparent)
        p = QPainter(pixmap)
        p.setRenderHint(QPainter.Antialiasing)
        p.setBrush(QBrush(QColor("#d1d1d6")))
        p.setPen(Qt.NoPen)
        p.drawEllipse(0, 0, size, size)
        p.end()
        self.avatar.setPixmap(pixmap)
        self.avatar.setFixedSize(size, size)
        self.avatar.setScaledContents(True)