import { useState } from "react";
import {
  AppBar,
  Toolbar,
  Typography,
  Button,
  Box,
  Drawer,
  List,
  ListItem,
  ListItemText,
  TextField,
  IconButton,
  Divider,
  Menu,
  MenuItem,
  CircularProgress,
} from "@mui/material";
import { Link, useLocation, useNavigate } from "react-router-dom";
import MenuIcon from "@mui/icons-material/Menu";
import SearchIcon from "@mui/icons-material/Search";
import HomeIcon from "@mui/icons-material/Home";
import ArticleIcon from "@mui/icons-material/Article";
import InfoIcon from "@mui/icons-material/Info";
import ContactMailIcon from "@mui/icons-material/ContactMail";
import WorkIcon from "@mui/icons-material/Work";
import Logo from "../assets/logo-in3.svg";
import LogoM from "../assets/logo-in3-mobil.svg";

const Header = () => {
  const [drawerOpen, setDrawerOpen] = useState(false);
  const [searchQuery, setSearchQuery] = useState("");
  const [isSearching, setIsSearching] = useState(false);
  const [anchorEl, setAnchorEl] = useState(null); // Pour gérer le menu Services
  const location = useLocation();
  const navigate = useNavigate();

  const toggleDrawer = (open) => (event) => {
    if (
      event.type === "keydown" &&
      (event.key === "Tab" || event.key === "Shift")
    ) {
      return;
    }
    setDrawerOpen(open);
  };

  const handleSearch = () => {
    if (searchQuery.trim()) {
      setIsSearching(true);
      setTimeout(() => {
        navigate(`/search?query=${encodeURIComponent(searchQuery.trim())}`);
        setIsSearching(false);
      }, 500);
    }
  };

  const handleMenuOpen = (event) => {
    setAnchorEl(event.currentTarget);
  };

  const handleMenuClose = () => {
    setAnchorEl(null);
  };

  const commonButtonStyles = {
    transition: "color 0.3s",
    position: "relative",
    "&:hover": { color: " #00bcd4" },
    "&:after": {
      content: '""',
      position: "absolute",
      width: "0",
      height: "2px",
      bottom: 0,
      left: 0,
      backgroundColor: " #00bcd4",
      transition: "width 0.3s",
    },
    "&:hover:after": {
      width: "100%",
    },
  };

  return (
    <AppBar
      position="fixed"
      color="transparent"
      elevation={0}
      sx={{
        background: "linear-gradient(to right, #294A9A, #3158b3)",
        color: "white",
        transition: "all 0.3s ease",
        
      }}
    >
      <Toolbar>
        {/* Mobile menu icon */}
        <IconButton
          edge="start"
          color="inherit"
          aria-label="menu"
          onClick={toggleDrawer(true)}
          sx={{
            display: { xs: "block", md: "none" },
            color: " #ffffff",
          }}
        >
          <MenuIcon />
        </IconButton>

        {/* Logo */}
        <Box
          component={Link}
          to="/"
          sx={{
            flexGrow: 1,
            textAlign: { xs: "center", md: "left" },
            alignItems: "center",
            textDecoration: "none",
            gap: 1,
          }}
        >
          <img
            src={Logo}
            alt="Bureau d'études Le Mans"
            style={{
              width: "50px",
              height: "50px",
              objectFit: "contain",
            }}
          />
        </Box>

        {/* Navigation Links */}
        <Box sx={{ display: { xs: "none", md: "flex" }, gap: 2 }}>
          {/* Services Dropdown */}
          <Button
            color="inherit"
            aria-controls="services-menu"
            aria-haspopup="true"
            onClick={handleMenuOpen}
            sx={{
              fontWeight: location.pathname.includes("/services")
                ? "bold"
                : "normal",
              textDecoration: location.pathname.includes("/services")
                ? "underline"
                : "none",
              ...commonButtonStyles,
            }}
          >
            Services
          </Button>
          <Menu
            id="services-menu"
            anchorEl={anchorEl}
            open={Boolean(anchorEl)}
            onClose={handleMenuClose}
            MenuListProps={{
              "aria-labelledby": "services-button",
            }}
          >
            <MenuItem
              component={Link}
              to="/services/prestation-maitrise-oeuvre"
              onClick={handleMenuClose}
            >
              <WorkIcon sx={{ marginRight: 1 }} />
              Prestation maitrise oeuvre
            </MenuItem>
            
            <MenuItem
              component={Link}
              to="/services/structure-beton-charpente-metallique-bois"
              onClick={handleMenuClose}
            >
              <WorkIcon sx={{ marginRight: 1 }} />
              Structure béton | charpente métallique / bois
            </MenuItem>

            <MenuItem
              component={Link}
              to="/services/electricite"
              onClick={handleMenuClose}
            >
              <WorkIcon sx={{ marginRight: 1}} />
              Électricité
            </MenuItem>

            <MenuItem
              component={Link}
              to="/services/ssi"
              onClick={handleMenuClose}
            >
              <WorkIcon sx={{ marginRight: 1}} />
              Systeme Sécurité Incendie (SSI)
            </MenuItem>

          </Menu>

          <Button
            component={Link}
            to="/posts"
            color="inherit"
            sx={{
              fontWeight: location.pathname === "/posts" ? "bold" : "normal",
              textDecoration:
                location.pathname === "/posts" ? "underline" : "none",
              ...commonButtonStyles,
            }}
          >
            Réalisations
          </Button>
          <Button
            component={Link}
            to="/about"
            color="inherit"
            sx={{
              fontWeight: location.pathname === "/about" ? "bold" : "normal",
              textDecoration:
                location.pathname === "/about" ? "underline" : "none",
              ...commonButtonStyles,
            }}
          >
            À Propos
          </Button>
          <Button
            component={Link}
            to="/bureauEtude"
            color="inherit"
            sx={{
              fontWeight: location.pathname === "/bureauEtude" ? "bold" : "normal",
              textDecoration:
                location.pathname === "/bureauEtude" ? "underline" : "none",
              ...commonButtonStyles,
            }}
          >
            Bureau d'étude
          </Button>
          <Button
            component={Link}
            to="/contact"
            color="inherit"
            sx={{
              fontWeight: location.pathname === "/contact" ? "bold" : "normal",
              textDecoration:
                location.pathname === "/contact" ? "underline" : "none",
              ...commonButtonStyles,
            }}
          >
            Contact
          </Button>
        </Box>

        {/* Search Field */}
        <Box
          component="form"
          onSubmit={(e) => {
            e.preventDefault();
            handleSearch();
          }}
          sx={{
            display: { xs: "none", md: "flex" },
            alignItems: "center",
            gap: 1,
          }}
        >
          <label
            htmlFor="search-input"
            style={{ position: "absolute", left: "-9999px" }}
          >
            Rechercher sur le site
          </label>
          <TextField
            id="search-input"
            variant="outlined"
            size="small"
            placeholder="Rechercher..."
            value={searchQuery}
            onChange={(e) => setSearchQuery(e.target.value)}
            sx={{
              backgroundColor: "rgba(255, 255, 255, 0.9)",
              borderRadius: 1,
              "& .MuiOutlinedInput-root": {
                "& fieldset": {
                  borderColor: "white",
                },
                "&:hover fieldset": {
                  borderColor: " #00bcd4",
                },
                "&.Mui-focused fieldset": {
                  borderColor: " #00bcd4",
                },
              },
            }}
          />
          <IconButton type="submit" color="inherit" aria-label="Rechercher">
            {isSearching ? (
              <CircularProgress size={20} color="inherit" />
            ) : (
              <SearchIcon />
            )}
          </IconButton>
        </Box>

        {/* Drawer for mobile */}
        <Drawer anchor="left" open={drawerOpen} onClose={toggleDrawer(false)}>
          <Box
            sx={{
              width: 250,
              backgroundColor: " #f5f5f5",
              height: "100%",
              padding: 2,
            }}
            role="presentation"
            onClick={toggleDrawer(false)}
            onKeyDown={toggleDrawer(false)}
          >
            <Box
              sx={{
                display: "block",
                textAlign: "center",
              }}
            >
              <img
                src={LogoM}
                alt="Logo"
                style={{
                  height: "50px",
                  width: "auto",
                }}
              />
            </Box>
            <Typography
              variant="h6"
              sx={{ textAlign: "center", marginBottom: 2 }}
            >
              Menu
            </Typography>
            <Divider />
            <List>
              <ListItem
                button
                component={Link}
                to="/"
                selected={location.pathname === "/"}
              >
                <HomeIcon
                  sx={{
                    marginRight: 0.5,
                  }}
                />
                <ListItemText primary="Accueil" />
              </ListItem>
              <ListItem
                button
                component={Link}
                to="/services/prestation-maitrise-oeuvre"
                selected={location.pathname.includes("/services/prestation-maitrise-oeuvre")}
              >
                <WorkIcon sx={{ marginRight: 0.5 }} />
                <ListItemText primary="Prestation maitrise oeuvre" />
              </ListItem>

              <ListItem
                button
                component={Link}
                to="/services/structure-beton-charpente-metallique-bois"
                selected={location.pathname.includes("/services/structure-beton-charpente-metallique-bois")}
              >
                <WorkIcon sx={{ marginRight: 0.5 }} />
                <ListItemText primary="Structure beton..." />
              </ListItem>

              <ListItem
                button
                component={Link}
                to="/services/electricite"
                selected={location.pathname.includes(
                  "/services/electricite"
                )}
              >
                <WorkIcon sx={{ marginRight: 0.5 }} />
                <ListItemText primary="Electricité..." />
              </ListItem>

              <ListItem
                button
                component={Link}
                to="/services/ssi"
                selected={location.pathname.includes(
                  "/services/ssi"
                )}
              >
                <WorkIcon sx={{ marginRight: 0.5 }} />
                <ListItemText primary="SSI..." />
              </ListItem>

              <ListItem
                button
                component={Link}
                to="/posts"
                selected={location.pathname === "/posts"}
              >
                <ArticleIcon sx={{ marginRight: 0.5 }} />
                <ListItemText primary="Réalisations" />
              </ListItem>

              <ListItem
                button
                component={Link}
                to="/about"
                selected={location.pathname === "/about"}
              >
                <InfoIcon sx={{ marginRight: 0.5 }} />
                <ListItemText primary="À propos" />
              </ListItem>

              <ListItem
                button
                component={Link}
                to="/contact"
                selected={location.pathname === "/contact"}
              >
                <ContactMailIcon sx={{ marginRight: 0.5 }} />
                <ListItemText primary="Contact" />
              </ListItem>

            </List>
          </Box>
        </Drawer>
      </Toolbar>
    </AppBar>
  );
};

export default Header;