"""
Human+ Reusable UI Components
Prinsip refactor: gunakan Streamlit native sebanyak mungkin.
HTML hanya untuk elemen dekoratif (hero logo, gradient) yang
tidak ada padanan native-nya.
"""

import streamlit as st
from typing import Literal, Optional
from ui.theme import COLORS, BIOMARKER_STATUS, PROTOCOL_SECTIONS


# ════════════════════════════════════════════════
# HERO & NAVIGATION
# ════════════════════════════════════════════════

def render_hero(
    subtitle: str = "Upload hasil lab Anda → Dapatkan rekomendasi IV drip & protocol personal"
):
    """
    Hero header — HTML dipertahankan hanya untuk gradient text logo
    yang tidak bisa dibuat dengan st.title() biasa.
    """
    st.markdown(
        """
        <div style="text-align:center; padding: 32px 0 8px;">
            <p style="
                font-size:0.72rem; font-weight:600;
                letter-spacing:0.2em; text-transform:uppercase;
                color:#4a4a6a; margin-bottom:6px;
            ">Human+ Bali · By Benjamin White</p>
            <h1 style="
                font-family:'DM Serif Display', Georgia, serif;
                font-size:2.6rem; font-weight:900; line-height:1;
                background: linear-gradient(135deg, #a78bfa, #38bdf8, #22d3ee);
                -webkit-background-clip: text; -webkit-text-fill-color: transparent;
                background-clip: text; margin:0 0 8px;
            ">Lab-to-Protocol</h1>
        </div>
        """,
        unsafe_allow_html=True,
    )
    st.caption(f"🧬 {subtitle}")
    st.write("")


def render_step_indicator(current_step: int):
    """
    3-step progress indicator menggunakan st.columns + native markdown.
    Tidak ada HTML kompleks — hanya emoji dan teks.
    """
    steps = ["📤 Upload", "🔬 Analisis", "📋 Protocol"]
    cols = st.columns(3)

    for i, (col, label) in enumerate(zip(cols, steps), 1):
        with col:
            if i < current_step:
                # Done
                st.markdown(
                    f"<div class='hp-step done'>✓ {label}</div>",
                    unsafe_allow_html=True,
                )
            elif i == current_step:
                # Active
                st.markdown(
                    f"<div class='hp-step active'>◉ {label}</div>",
                    unsafe_allow_html=True,
                )
            else:
                # Pending
                st.markdown(
                    f"<div class='hp-step pending'>○ {label}</div>",
                    unsafe_allow_html=True,
                )

    st.divider()


def render_trust_badges():
    """Trust badges menggunakan st.columns — tidak ada HTML."""
    col1, col2, col3, col4 = st.columns(4)
    badges = [
        ("🔒", "Stateless"),
        ("🗑️", "Tidak disimpan"),
        ("⚡", "Gemini AI"),
        ("🌿", "Human+ Bali"),
    ]
    for col, (icon, text) in zip([col1, col2, col3, col4], badges):
        with col:
            st.caption(f"{icon} {text}")
    st.write("")


def render_section_label(text: str, icon: str = ""):
    """
    Section label menggunakan st.markdown dengan minimal styling —
    hanya border-left yang tidak ada padanan native.
    """
    prefix = f"{icon} " if icon else ""
    st.markdown(
        f"<p style='font-size:0.7rem; font-weight:700; letter-spacing:0.14em; "
        f"color:#8b8ba7; border-left:2px solid #8b5cf6; padding-left:8px; "
        f"margin:20px 0 10px;'>{prefix}{text}</p>",
        unsafe_allow_html=True,
    )


# ════════════════════════════════════════════════
# LOADING STATES
# ════════════════════════════════════════════════

ANALYSIS_STEPS = [
    "Membaca dokumen PDF",
    "Mengidentifikasi biomarker",
    "Mencocokkan dengan range Human+",
    "Menyusun temuan utama",
]

PROTOCOL_STEPS = [
    "Mengambil knowledge base Human+",
    "Menyesuaikan dengan hasil lab Anda",
    "Menyusun rekomendasi IV drip",
    "Finalisasi protocol personal",
]


def render_loading_steps(steps: list[str], current_index: int):
    """
    Loading steps menggunakan st.markdown per baris — lebih stabil
    dari satu blok HTML besar.
    """
    for i, step in enumerate(steps):
        if i < current_index:
            icon, color = "✓", "#10b981"
        elif i == current_index:
            icon, color = "◉", "#8b5cf6"
        else:
            icon, color = "○", "#4a4a6a"

        st.markdown(
            f"<p style='color:{color}; font-size:0.85rem; margin:4px 0;'>"
            f"{icon} &nbsp; {step}</p>",
            unsafe_allow_html=True,
        )


def render_progress_bar(value: float, label: str = ""):
    """Native st.progress — tidak butuh HTML sama sekali."""
    if label:
        st.caption(label)
    st.progress(value)


# ════════════════════════════════════════════════
# BIOMARKER COMPONENTS
# ════════════════════════════════════════════════

StatusType = Literal["optimal", "warning", "danger", "neutral"]

_STATUS_EMOJI = {
    "optimal": "🟢",
    "warning": "🟡",
    "danger":  "🔴",
    "neutral": "⚪",
}

_STATUS_COLOR = {
    "optimal": "#10b981",
    "warning": "#f59e0b",
    "danger":  "#ef4444",
    "neutral": "#6b7280",
}


def render_biomarker_row(
    name: str,
    value: str,
    unit: str,
    status: StatusType,
    reference: str = "",
):
    """
    Biomarker row menggunakan st.columns + st.metric.
    Jauh lebih stabil dari HTML div, metric punya built-in styling.
    Border kiri status tetap pakai satu baris HTML minimal.
    """
    color = _STATUS_COLOR.get(status, "#6b7280")
    emoji = _STATUS_EMOJI.get(status, "⚪")

    # Border kiri berwarna — satu-satunya HTML di sini
    st.markdown(
        f"<div style='border-left:3px solid {color}; padding-left:10px; margin:2px 0 0;'>",
        unsafe_allow_html=True,
    )

    col_name, col_val = st.columns([3, 1])
    with col_name:
        st.markdown(f"**{emoji} {name}**")
        if reference:
            st.caption(f"Target Human+: {reference}")
    with col_val:
        st.metric(
            label=unit,
            value=value,
            label_visibility="visible",
        )

    st.markdown("</div>", unsafe_allow_html=True)
    st.write("")


def render_biomarker_summary_banner(optimal: int, warning: int, danger: int):
    """
    Summary count banner menggunakan st.columns + st.metric native.
    Tidak ada HTML sama sekali.
    """
    total = optimal + warning + danger
    st.caption(f"🔬 RINGKASAN BIOMARKER — {total} MARKER DIANALISIS")

    col1, col2, col3 = st.columns(3)
    with col1:
        st.metric(label="🔴 Perlu Perhatian", value=str(danger))
    with col2:
        st.metric(label="🟡 Sub-Optimal", value=str(warning))
    with col3:
        st.metric(label="🟢 Optimal", value=str(optimal))

    st.write("")


def render_biomarker_chip(name: str, status: StatusType):
    """Inline chip menggunakan caption + emoji — tidak butuh HTML."""
    emoji = _STATUS_EMOJI.get(status, "⚪")
    st.caption(f"{emoji} {name}")


# ════════════════════════════════════════════════
# PROTOCOL COMPONENTS
# ════════════════════════════════════════════════

def render_protocol_section(
    section_key: str,
    content: str,
    custom_icon: str = "",
    custom_title: str = "",
    accent_color: str = "",
):
    """
    Protocol section menggunakan st.expander native sebagai container,
    dengan header yang jelas. Content di-render sebagai st.markdown biasa.
    """
    cfg = PROTOCOL_SECTIONS.get(section_key, {
        "icon": custom_icon or "📋",
        "title": custom_title or "Section",
        "color": accent_color or COLORS["accent_violet"],
    })

    icon  = custom_icon  or cfg["icon"]
    title = custom_title or cfg["title"]

    with st.expander(f"{icon} {title}", expanded=True):
        if content and content.strip():
            st.markdown(content)
        else:
            st.caption("Tidak ada data untuk section ini.")


# ════════════════════════════════════════════════
# ERROR & EMPTY STATES
# ════════════════════════════════════════════════

def render_error_state(
    title: str = "Terjadi Kesalahan",
    message: str = "Silakan coba lagi.",
    retry_label: str = "Coba Lagi",
    show_contact: bool = False,
):
    """Error state menggunakan st.error native — selalu render dengan benar."""
    st.error(f"**{title}**\n\n{message}", icon="⚠️")
    if show_contact:
        st.caption("Butuh bantuan? Hubungi [@bennywhitethatsright](https://instagram.com/bennywhitethatsright)")


def render_empty_state(
    emoji: str = "🧬",
    title: str = "Belum ada data",
    message: str = "",
):
    """Empty state menggunakan st.info native."""
    st.info(f"{emoji} **{title}**\n\n{message}" if message else f"{emoji} **{title}**")


# ════════════════════════════════════════════════
# FOOTER
# ════════════════════════════════════════════════

def render_footer():
    """Footer menggunakan st.divider + st.caption native."""
    st.divider()
    st.caption(
        "**FROM INJURED → OPTIMIZED**  \n"
        "Human+ Bali · Didirikan oleh Benjamin White · "
        "[@bennywhitethatsright](https://instagram.com/bennywhitethatsright)  \n"
        "*Data Anda tidak disimpan. Aplikasi 100% stateless. "
        "Bukan pengganti konsultasi medis.*"
    )


# ════════════════════════════════════════════════
# UTILITY CARDS
# ════════════════════════════════════════════════

def render_info_card(title: str, body: str, icon: str = "ℹ️"):
    """
    Info card menggunakan st.info — native, selalu render.
    Body sebaiknya plain text, bukan HTML.
    """
    # Strip HTML tags sederhana dari body sebelum render
    import re
    clean_body = re.sub(r"<[^>]+>", "", body).strip()
    st.info(f"{icon} **{title}**\n\n{clean_body}")


def render_success_banner(title: str, subtitle: str = ""):
    """Success banner menggunakan st.success native."""
    text = f"**{title}**"
    if subtitle:
        text += f"\n\n{subtitle}"
    st.success(text, icon="✅")


def render_highlight_quote(text: str):
    """
    Motivational quote — satu-satunya komponen yang tetap pakai
    HTML minimal karena border-left gradient tidak ada di native Streamlit.
    """
    st.markdown(
        f"<blockquote style='"
        f"border-left:3px solid #8b5cf6; padding:12px 16px; margin:16px 0; "
        f"background:rgba(109,40,217,0.06); border-radius:0 8px 8px 0;'>"
        f"<em style='color:#c4c4e0;'>{text}</em><br>"
        f"<small style='color:#4a4a6a;'>— Benjamin White, Founder Human+ Bali</small>"
        f"</blockquote>",
        unsafe_allow_html=True,
    )