from __future__ import annotations

import os
import queue
import shutil
import threading
import time
from typing import Any

import gradio as gr

from app.config import Settings
from app.pipeline import AnalysisPipeline


APP_TITLE = "ASD Multi-Agent Analyzer: 群智 · 独孤九鉴"
APP_SUBTITLE = (
    "全场景、多模态、医学级孤独症（ASD）辅助筛查与评估系统 | \n"
    "浙江大学人机系统实验室 | 指导教师：琚兆杰教授 | 学生负责人：王绪娜 | 研发代表：关智友"
)

BASE_DIR = os.path.dirname(os.path.abspath(__file__))
ASSETS_DIR = os.path.join(BASE_DIR, "assets")
APP_COVER_PATH = os.path.join(ASSETS_DIR, "hy.png")

print(f"BASE_DIR = {BASE_DIR}")
print(f"ASSETS_DIR = {ASSETS_DIR}")
print(f"APP_COVER_PATH = {APP_COVER_PATH}")
print(f"APP_COVER_EXISTS = {os.path.exists(APP_COVER_PATH)}")

# 让 Gradio 将 assets 目录作为静态资源目录提供给前端访问
gr.set_static_paths(paths=[ASSETS_DIR])

CUSTOM_CSS = """
:root {
  --bg: #0b1020;
  --panel: #121a2b;
  --panel-2: #172135;
  --soft: #94a3b8;
  --text: #e5e7eb;
  --line: #263247;
  --accent: #4f46e5;
  --accent-2: #2563eb;
  --success: #16a34a;
  --warning: #f59e0b;
}

html, body {
  overflow-x: hidden !important;
}

body, .gradio-container {
  background: linear-gradient(180deg, #0b1020 0%, #0f172a 100%) !important;
  color: var(--text) !important;
  font-family: "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif !important;
}

.gradio-container {
  max-width: 1500px !important;
  margin: 0 auto !important;
  padding-top: 18px !important;
  padding-bottom: 28px !important;
  padding-left: 14px !important;
  padding-right: 14px !important;
  box-sizing: border-box !important;
}

.hero {
  background: linear-gradient(135deg, rgba(79,70,229,.18), rgba(37,99,235,.12));
  border: 1px solid rgba(148,163,184,.15);
  border-radius: 22px;
  padding: 24px 28px;
  margin-bottom: 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,.22);
  overflow: hidden;
}

.hero h1 {
  margin: 0 0 8px 0;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 0.2px;
  line-height: 1.35;
  word-break: break-word;
}

.hero p {
  margin: 0;
  color: var(--soft);
  font-size: 14px;
  line-height: 1.7;
  white-space: pre-line;
  word-break: break-word;
}

.kpi-row {
  display: flex;
  gap: 12px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.kpi-card {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(148,163,184,.12);
  border-radius: 16px;
  padding: 12px 16px;
  min-width: 170px;
  flex: 1 1 180px;
  box-sizing: border-box;
}

.kpi-card .label {
  color: var(--soft);
  font-size: 12px;
  margin-bottom: 6px;
}

.kpi-card .value {
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.4;
}

.cover-wrap {
  margin-top: 16px;
}

.cover-wrap img {
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: contain;
  border-radius: 18px;
  border: 1px solid rgba(148,163,184,.12);
  box-shadow: 0 8px 24px rgba(0,0,0,.22);
  display: block;
}

.section-card {
  background: rgba(18,26,43,.92) !important;
  border: 1px solid rgba(148,163,184,.12) !important;
  border-radius: 20px !important;
  box-shadow: 0 10px 30px rgba(0,0,0,.18) !important;
}

.section-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.section-desc {
  color: var(--soft);
  font-size: 12px;
  margin-bottom: 10px;
  line-height: 1.7;
}

.gr-button-primary, button.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2)) !important;
  border: none !important;
  border-radius: 14px !important;
  font-weight: 700 !important;
  min-height: 44px !important;
}

.gr-button-secondary, button.secondary {
  border-radius: 14px !important;
}

.gr-box, .gr-group, .gr-form {
  border-radius: 18px !important;
}

textarea, input, .gr-textbox, .gr-file, .gr-dataframe, .gr-markdown {
  border-radius: 14px !important;
  box-sizing: border-box !important;
}

.tabitem {
  border-radius: 16px !important;
}

.status-good {
  color: #86efac;
  font-weight: 700;
}

.status-warn {
  color: #fcd34d;
  font-weight: 700;
}

.status-bad {
  color: #fca5a5;
  font-weight: 700;
}

.footer-note {
  color: var(--soft);
  font-size: 12px;
  margin-top: 14px;
  line-height: 1.7;
}

pre, code {
  white-space: pre-wrap !important;
  word-break: break-word !important;
}

.gradio-container * {
  max-width: 100%;
}

@media (max-width: 1024px) {
  .gradio-container {
    max-width: 100% !important;
    padding-left: 12px !important;
    padding-right: 12px !important;
  }

  .hero {
    padding: 20px 20px;
  }

  .hero h1 {
    font-size: 26px;
  }

  .kpi-card {
    min-width: 150px;
    flex: 1 1 160px;
  }
}

@media (max-width: 768px) {
  .gradio-container {
    padding-top: 10px !important;
    padding-bottom: 18px !important;
    padding-left: 10px !important;
    padding-right: 10px !important;
  }

  .hero {
    border-radius: 18px;
    padding: 16px 14px;
    margin-bottom: 14px;
  }

  .hero h1 {
    font-size: 22px;
    line-height: 1.35;
  }

  .hero p {
    font-size: 13px;
    line-height: 1.65;
  }

  .kpi-row {
    gap: 10px;
    margin-top: 14px;
  }

  .kpi-card {
    min-width: 100%;
    flex: 1 1 100%;
    padding: 10px 12px;
    border-radius: 14px;
  }

  .kpi-card .label {
    font-size: 11px;
  }

  .kpi-card .value {
    font-size: 15px;
  }

  .cover-wrap {
    margin-top: 12px;
  }

  .cover-wrap img {
    max-height: 220px;
    border-radius: 14px;
  }

  .section-card {
    border-radius: 16px !important;
  }

  .section-title {
    font-size: 14px;
  }

  .section-desc,
  .footer-note {
    font-size: 12px;
    line-height: 1.6;
  }

  button, .gr-button, .gr-button-primary, .gr-button-secondary {
    width: 100% !important;
    min-height: 44px !important;
    font-size: 15px !important;
  }

  .gr-file, .gr-textbox, .gr-markdown, .gr-group, .gr-form {
    width: 100% !important;
  }

  textarea, input {
    font-size: 14px !important;
  }

  .tabs {
    overflow-x: auto !important;
  }

  .tab-nav {
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    scrollbar-width: thin;
  }

  .tab-nav button {
    width: auto !important;
    white-space: nowrap !important;
    flex: 0 0 auto !important;
    min-height: 38px !important;
    font-size: 13px !important;
    padding: 8px 12px !important;
  }

  .gradio-container .grid-wrap,
  .gradio-container .grid-container,
  .gradio-container .grid {
    overflow-x: auto !important;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 14px 12px;
  }

  .hero h1 {
    font-size: 19px;
  }

  .hero p {
    font-size: 12px;
  }

  .section-title {
    font-size: 13px;
  }

  .section-desc,
  .footer-note {
    font-size: 11px;
  }

  .kpi-card .value {
    font-size: 14px;
  }

  .cover-wrap img {
    max-height: 180px;
  }

  textarea, input {
    font-size: 13px !important;
  }
}
"""


def get_auth_credentials() -> tuple[str, str]:
    username = os.getenv("APP_USERNAME", "").strip()
    password = os.getenv("APP_PASSWORD", "").strip()

    if not username or not password:
        raise RuntimeError(
            "缺少登录凭证。请在环境变量或 Hugging Face Space Secrets 中配置 APP_USERNAME 和 APP_PASSWORD。"
        )

    return username, password


def safe_read_text(path: str) -> str:
    if not path or not os.path.exists(path):
        return ""
    with open(path, "r", encoding="utf-8", errors="ignore") as f:
        return f.read()


def zip_output_dir(output_dir: str) -> str | None:
    if not output_dir or not os.path.isdir(output_dir):
        return None
    zip_base = output_dir.rstrip("/\\")
    archive_path = shutil.make_archive(zip_base, "zip", output_dir)
    return archive_path


def shorten_text(text: str, max_len: int = 20000) -> str:
    text = text or ""
    if len(text) <= max_len:
        return text
    return text[:max_len] + "\n\n...[内容已截断]..."


def build_status_markdown(
    stage: str,
    progress_value: int,
    logs: list[str],
    result: dict[str, Any] | None = None,
    error: str | None = None,
) -> str:
    status_cls = "status-good" if result and not error else "status-warn"
    if error:
        status_cls = "status-bad"

    lines = []
    lines.append("### 运行状态")
    lines.append(f"- 当前阶段：<span class='{status_cls}'>{stage}</span>")
    lines.append(f"- 当前进度：**{progress_value}%**")

    if result:
        lines.append(f"- 可用 Key 数：**{result.get('valid_key_count', '')}**")
        lines.append(f"- 视频模式：**{result.get('video_agent_mode', '')}**")
        lines.append(f"- 音频模式：**{result.get('audio_agent_mode', '')}**")
        lines.append(f"- 文档数量：**{result.get('document_count', '')}**")
        lines.append(f"- 检索命中数：**{result.get('retrieved_count', '')}**")
        lines.append(f"- 输出目录：`{result.get('output_dir', '')}`")

    if error:
        lines.append("")
        lines.append("### 错误信息")
        lines.append(f"```text\n{error}\n```")

    lines.append("")
    lines.append("### 运行日志")
    lines.append("```text")
    lines.extend(logs[-120:])
    lines.append("```")

    return "\n".join(lines)


def collect_outputs(output_dir: str) -> dict[str, str]:
    ordinary_report = safe_read_text(os.path.join(output_dir, "final_report.md"))
    rag_report = safe_read_text(os.path.join(output_dir, "rag_final_report.md"))
    evidence_summary = safe_read_text(os.path.join(output_dir, "evidence_summary.json"))
    merged_events = safe_read_text(os.path.join(output_dir, "merged_events.json"))
    raw_agents = safe_read_text(os.path.join(output_dir, "raw_agent_results.json"))
    audio_results = safe_read_text(os.path.join(output_dir, "audio_agent_results.json"))
    audio_transcripts = safe_read_text(os.path.join(output_dir, "audio_transcripts.json"))
    doc_results = safe_read_text(os.path.join(output_dir, "document_agent_results.json"))
    rag_status = safe_read_text(os.path.join(output_dir, "rag_status.json"))
    retrieved_chunks = safe_read_text(os.path.join(output_dir, "retrieved_chunks.json"))

    return {
        "ordinary_report": ordinary_report,
        "rag_report": rag_report,
        "evidence_summary": evidence_summary,
        "merged_events": merged_events,
        "raw_agents": raw_agents,
        "audio_results": audio_results,
        "audio_transcripts": audio_transcripts,
        "doc_results": doc_results,
        "rag_status": rag_status,
        "retrieved_chunks": retrieved_chunks,
    }


def build_debug_info() -> str:
    lines = [
        "### 调试信息",
        f"- 当前工作目录：`{os.getcwd()}`",
        f"- 脚本目录 BASE_DIR：`{BASE_DIR}`",
        f"- 资源目录 ASSETS_DIR：`{ASSETS_DIR}`",
        f"- 图片路径 APP_COVER_PATH：`{APP_COVER_PATH}`",
        f"- 图片是否存在：**{os.path.exists(APP_COVER_PATH)}**",
        f"- 当前标题 APP_TITLE：**{APP_TITLE}**",
        f"- 当前副标题 APP_SUBTITLE：**{APP_SUBTITLE}**",
    ]
    return "\n".join(lines)


def analyze(video_file, doc_files, progress=gr.Progress(track_tqdm=False)):
    if video_file is None:
        yield (
            build_status_markdown("等待上传视频", 0, ["请先上传视频文件。"]),
            "",
            "",
            "",
            "",
            "",
            "",
            "",
            None,
        )
        return

    settings = Settings.load()

    log_q: queue.Queue = queue.Queue()
    state = {
        "progress": 0,
        "message": "准备启动分析",
        "done": False,
        "error": None,
        "result": None,
    }

    video_path = video_file if isinstance(video_file, str) else getattr(video_file, "name", None)

    doc_paths = []
    if doc_files:
        if isinstance(doc_files, list):
            doc_paths = [p if isinstance(p, str) else getattr(p, "name", None) for p in doc_files]
        else:
            doc_paths = [doc_files if isinstance(doc_files, str) else getattr(doc_files, "name", None)]
        doc_paths = [p for p in doc_paths if p]

    logs: list[str] = []

    def progress_cb(p: int, m: str):
        state["progress"] = p
        state["message"] = m
        log_q.put(("progress", p, m))

    def log_cb(m: str):
        log_q.put(("log", m))

    def worker():
        try:
            pipeline = AnalysisPipeline(
                settings=settings,
                progress_cb=progress_cb,
                log_cb=log_cb,
            )
            result = pipeline.run(video=video_path, doc_paths=doc_paths)
            state["result"] = result
            state["done"] = True
            log_q.put(("done", result))
        except Exception as e:
            state["error"] = f"{type(e).__name__}: {e}"
            state["done"] = True
            log_q.put(("error", state["error"]))

    thread = threading.Thread(target=worker, daemon=True)
    thread.start()

    initial_status = build_status_markdown("准备启动分析", 0, logs)
    yield (
        initial_status,
        "",
        "",
        "",
        "",
        "",
        "",
        "",
        None,
    )

    while not state["done"] or not log_q.empty():
        try:
            item = log_q.get(timeout=0.5)
            kind = item[0]
            if kind == "progress":
                _, p, m = item
                progress(p / 100.0, desc=m)
                logs.append(f"[{p:3d}%] {m}")
            elif kind == "log":
                _, m = item
                logs.append(m)
            elif kind == "done":
                _, _result = item
                logs.append("分析完成。")
            elif kind == "error":
                _, err = item
                logs.append(f"[ERROR] {err}")
        except queue.Empty:
            pass

        status_md = build_status_markdown(
            stage=state["message"],
            progress_value=state["progress"],
            logs=logs,
            result=state["result"],
            error=state["error"],
        )

        if state["done"]:
            break

        yield (
            status_md,
            "",
            "",
            "",
            "",
            "",
            "",
            "",
            None,
        )
        time.sleep(0.15)

    if state["error"]:
        status_md = build_status_markdown(
            stage="分析失败",
            progress_value=state["progress"],
            logs=logs,
            error=state["error"],
        )
        yield (
            status_md,
            "",
            "",
            "",
            "",
            "",
            "",
            "",
            None,
        )
        return

    result = state["result"] or {}
    output_dir = result.get("output_dir", "")
    outputs = collect_outputs(output_dir)
    downloadable = zip_output_dir(output_dir)

    status_md = build_status_markdown(
        stage="分析完成",
        progress_value=100,
        logs=logs,
        result=result,
    )

    preview_summary = (
        "=== evidence_summary.json ===\n"
        + shorten_text(outputs["evidence_summary"], 12000)
        + "\n\n=== rag_status.json ===\n"
        + shorten_text(outputs["rag_status"], 5000)
    )

    preview_retrieval = (
        "=== retrieved_chunks.json ===\n"
        + shorten_text(outputs["retrieved_chunks"], 12000)
        + "\n\n=== merged_events.json ===\n"
        + shorten_text(outputs["merged_events"], 12000)
    )

    preview_modalities = (
        "=== audio_agent_results.json ===\n"
        + shorten_text(outputs["audio_results"], 8000)
        + "\n\n=== audio_transcripts.json ===\n"
        + shorten_text(outputs["audio_transcripts"], 8000)
        + "\n\n=== document_agent_results.json ===\n"
        + shorten_text(outputs["doc_results"], 8000)
    )

    yield (
        status_md,
        outputs["ordinary_report"],
        outputs["rag_report"],
        preview_summary,
        preview_retrieval,
        preview_modalities,
        shorten_text(outputs["raw_agents"], 15000),
        output_dir,
        downloadable,
    )


def build_header_html() -> str:
    if APP_COVER_PATH and os.path.exists(APP_COVER_PATH):
        cover_html = (
            f"<div class='cover-wrap'>"
            f"<img src='/gradio_api/file={APP_COVER_PATH}' alt='cover' />"
            f"</div>"
        )
    else:
        cover_html = (
            "<div class='cover-wrap'>"
            "<div style='color:#fca5a5;font-size:13px;'>封面图未找到：assets/hy.png</div>"
            "</div>"
        )

    return f"""
    <div class="hero">
      <h1>{APP_TITLE}</h1>
      <p>{APP_SUBTITLE}</p>
      <div class="kpi-row">
        <div class="kpi-card">
          <div class="label">输入模态</div>
          <div class="value">视频 / 音频 / 文档</div>
        </div>
        <div class="kpi-card">
          <div class="label">分析引擎</div>
          <div class="value">多智能体并发</div>
        </div>
        <div class="kpi-card">
          <div class="label">知识增强</div>
          <div class="value">显式 RAG</div>
        </div>
        <div class="kpi-card">
          <div class="label">输出能力</div>
          <div class="value">可解释辅助报告</div>
        </div>
      </div>
      {cover_html}
    </div>
    """


with gr.Blocks(title=APP_TITLE) as demo:
    gr.HTML(build_header_html())

    with gr.Row():
        with gr.Column(scale=1, min_width=280):
            with gr.Group(elem_classes="section-card"):
                gr.Markdown("### 输入与控制", elem_classes="section-title")
                gr.Markdown(
                    "上传一个诊断视频，以及可选的多份病历/量表/问卷文档。",
                    elem_classes="section-desc",
                )

                video_input = gr.File(
                    label="上传视频",
                    file_types=[".mp4", ".avi", ".mov", ".mkv"],
                    type="filepath",
                )
                docs_input = gr.File(
                    label="上传可选文档（支持多选）",
                    file_count="multiple",
                    file_types=[".txt", ".md", ".json", ".csv", ".pdf", ".docx"],
                    type="filepath",
                )
                run_btn = gr.Button("开始分析", variant="primary")

                gr.Markdown(
                    """
                    <div class="footer-note">
                    小建议：正式分析使用 10 分钟左右的结构化诊断对话视频，文档可包含量表、病历、问卷与观察记录。
                    </div>
                    """
                )

                # debug_output = gr.Markdown(value=build_debug_info())

        with gr.Column(scale=1, min_width=280):
            with gr.Group(elem_classes="section-card"):
                gr.Markdown("### 实时运行状态", elem_classes="section-title")
                gr.Markdown(
                    "展示当前阶段、进度、日志和运行模式。视频分析在云端可能比音频慢很多(没钱租好的服务器 ⦁֊⦁꧞) \n 若日志有持续更新就不代表卡死。",
                    elem_classes="section-desc",
                )
                status_output = gr.Markdown(value="### 状态\n等待开始分析。")

        with gr.Column(scale=2, min_width=280):
            with gr.Group(elem_classes="section-card"):
                gr.Markdown("### 输出与结果", elem_classes="section-title")
                gr.Markdown(
                    "查看普通报告、RAG 报告与中间态结果，并下载完整结果文件。",
                    elem_classes="section-desc",
                )

                with gr.Tabs():
                    with gr.Tab("普通报告"):
                        ordinary_report_output = gr.Markdown()
                    with gr.Tab("RAG 报告"):
                        rag_report_output = gr.Markdown()
                    with gr.Tab("证据摘要预览"):
                        summary_preview_output = gr.Textbox(lines=24)
                    with gr.Tab("检索与聚合预览"):
                        retrieval_preview_output = gr.Textbox(lines=24)
                    with gr.Tab("音频 / 文档中间结果"):
                        modality_preview_output = gr.Textbox(lines=24)
                    with gr.Tab("原始智能体输出"):
                        raw_preview_output = gr.Textbox(lines=24)

                output_dir_box = gr.Textbox(label="本次输出目录", interactive=False)
                download_output = gr.File(label="下载完整结果压缩包")

    run_btn.click(
        fn=analyze,
        inputs=[video_input, docs_input],
        outputs=[
            status_output,
            ordinary_report_output,
            rag_report_output,
            summary_preview_output,
            retrieval_preview_output,
            modality_preview_output,
            raw_preview_output,
            output_dir_box,
            download_output,
        ],
        api_name="analyze",
    )

if __name__ == "__main__":
    auth_username, auth_password = get_auth_credentials()

    demo.queue(default_concurrency_limit=1).launch(
        css=CUSTOM_CSS,
        theme=gr.themes.Soft(
            primary_hue="indigo",
            secondary_hue="blue",
            neutral_hue="slate",
        ),
        allowed_paths=[ASSETS_DIR],
        auth=(auth_username, auth_password),
    )