"""APIClient - Agent - Request Search Dialog."""
from PyQt6.QtWidgets import (
    QDialog, QVBoxLayout, QHBoxLayout, QLineEdit,
    QPushButton, QListWidget, QListWidgetItem, QLabel, QWidget
)
from PyQt6.QtCore import Qt, pyqtSignal
from PyQt6.QtGui import QBrush, QColor

from app.ui.theme import Colors, method_color
from app.core import storage
from app.models import HttpRequest


class SearchDialog(QDialog):
    request_selected = pyqtSignal(object)

    def __init__(self, parent=None):
        super().__init__(parent)
        self.setWindowTitle("Search Requests")
        self.setMinimumSize(580, 460)

        layout = QVBoxLayout(self)
        layout.setContentsMargins(0, 0, 0, 0)
        layout.setSpacing(0)

        # ── Header ────────────────────────────────────────────────────────────
        header = QWidget()
        header.setObjectName("panelHeader")
        header.setFixedHeight(48)
        hl = QHBoxLayout(header)
        hl.setContentsMargins(16, 0, 16, 0)
        title = QLabel("Search Requests")
        title.setObjectName("panelTitle")
        hl.addWidget(title)
        layout.addWidget(header)

        # ── Search bar ────────────────────────────────────────────────────────
        search_bar = QWidget()
        search_bar.setObjectName("urlBarStrip")
        sl = QHBoxLayout(search_bar)
        sl.setContentsMargins(16, 10, 16, 10)
        self.search_input = QLineEdit()
        self.search_input.setObjectName("urlBar")
        self.search_input.setPlaceholderText("Search by name or URL…")
        self.search_input.textChanged.connect(self._search)
        sl.addWidget(self.search_input)
        layout.addWidget(search_bar)

        # ── Results ───────────────────────────────────────────────────────────
        body = QWidget()
        body.setObjectName("panelBody")
        bl = QVBoxLayout(body)
        bl.setContentsMargins(16, 8, 16, 8)
        bl.setSpacing(6)

        self.count_label = QLabel("")
        self.count_label.setObjectName("hintText")
        bl.addWidget(self.count_label)

        self.results_list = QListWidget()
        self.results_list.itemDoubleClicked.connect(self._on_selected)
        bl.addWidget(self.results_list)
        layout.addWidget(body, 1)

        # ── Footer ────────────────────────────────────────────────────────────
        footer = QWidget()
        footer.setObjectName("panelFooter")
        footer.setFixedHeight(52)
        fl = QHBoxLayout(footer)
        fl.setContentsMargins(16, 0, 16, 0)
        open_btn = QPushButton("Open in Tab")
        open_btn.setObjectName("accent")
        open_btn.setFixedWidth(120)
        open_btn.clicked.connect(self._on_selected_btn)
        close_btn = QPushButton("Close")
        close_btn.setFixedWidth(80)
        close_btn.clicked.connect(self.reject)
        fl.addWidget(open_btn)
        fl.addStretch()
        fl.addWidget(close_btn)
        layout.addWidget(footer)

        self.search_input.setFocus()
        self._search("")

    # ── Logic ─────────────────────────────────────────────────────────────────

    def _search(self, query: str):
        self.results_list.clear()
        results = storage.search_requests(query) if query.strip() else []
        count = len(results)
        self.count_label.setText(
            f"{count} result{'s' if count != 1 else ''}"
            if query.strip() else "Type to search…"
        )
        for r in results:
            method     = r.get("method", "GET")
            name       = r.get("name") or r.get("url", "")
            col_name   = r.get("collection_name", "")
            label      = f"[{col_name}]  {method}  {name}" if col_name else f"{method}  {name}"
            item       = QListWidgetItem(label)
            item.setForeground(QBrush(QColor(method_color(method))))
            item.setData(Qt.ItemDataRole.UserRole, r)
            self.results_list.addItem(item)

    def _build_request(self, r: dict) -> HttpRequest:
        return HttpRequest(
            method             = r.get("method", "GET"),
            url                = r.get("url", ""),
            headers            = r.get("headers") or {},
            params             = r.get("params") or {},
            body               = r.get("body") or "",
            body_type          = r.get("body_type") or "raw",
            content_type       = r.get("content_type") or "",
            auth_type          = r.get("auth_type") or "none",
            auth_data          = r.get("auth_data") or {},
            name               = r.get("name") or "",
            id                 = r.get("id"),
            timeout            = r.get("timeout") or 30,
            ssl_verify         = bool(r.get("ssl_verify", 1)),
        )

    def _on_selected(self, item: QListWidgetItem = None):
        if item is None:
            item = self.results_list.currentItem()
        if not item:
            return
        r = item.data(Qt.ItemDataRole.UserRole)
        self.request_selected.emit(self._build_request(r))
        self.accept()

    def _on_selected_btn(self):
        self._on_selected(self.results_list.currentItem())