import json
from typing import Any

import requests
import streamlit as st


st.set_page_config(page_title="Visione Lab", layout="wide")


def api_url(path: str) -> str:
    return st.session_state.base_url.rstrip("/") + path


def headers() -> dict[str, str]:
    token = st.session_state.get("token", "")
    return {"Authorization": f"Bearer {token}"} if token else {}


def show_response(response: requests.Response) -> None:
    st.caption(f"{response.request.method} {response.url} -> {response.status_code}")
    try:
        st.json(response.json())
    except ValueError:
        st.text(response.text)


def json_input(label: str, value: dict[str, Any]) -> dict[str, Any] | None:
    raw = st.text_area(label, json.dumps(value, indent=2), height=180)
    try:
        return json.loads(raw)
    except json.JSONDecodeError as error:
        st.error(f"Invalid JSON: {error}")
        return None


if "base_url" not in st.session_state:
    st.session_state.base_url = "http://127.0.0.1:5555/api/v1"

st.title("Visione API Lab")

auth_tab, reports_tab, admin_tab, docs_tab = st.tabs(
    ["Auth", "Reports", "Admin", "Docs"]
)

with auth_tab:
    col1, col2 = st.columns(2)
    with col1:
        st.subheader("Password login")
        email = st.text_input("Email", "admin@visione.local")
        password = st.text_input("Password", "ChangeMe123!", type="password")
        if st.button("Login"):
            response = requests.post(
                api_url("/auth/login/password"),
                json={"email": email, "password": password},
                timeout=10,
            )
            data = response.json() if response.headers.get("content-type", "").startswith("application/json") else {}
            token = data.get("token")
            if token:
                st.session_state.token = token
            show_response(response)

        st.subheader("OTP")
        otp_email = st.text_input("OTP email", "citizen@example.com")
        if st.button("Request OTP"):
            show_response(
                requests.post(
                    api_url("/auth/otp/request"),
                    json={"email": otp_email},
                    timeout=10,
                )
            )
        otp_code = st.text_input("OTP code")
        if st.button("Verify OTP"):
            response = requests.post(
                api_url("/auth/otp/verify"),
                json={"email": otp_email, "code": otp_code},
                timeout=10,
            )
            data = response.json() if response.headers.get("content-type", "").startswith("application/json") else {}
            token = data.get("token")
            if token:
                st.session_state.token = token
            show_response(response)

    with col2:
        st.subheader("Register citizen")
        payload = json_input(
            "Register payload",
            {
                "first_name": "Mario",
                "last_name": "Rossi",
                "email": "citizen@example.com",
                "password": "ChangeMe123!",
                "fiscal_code": "RSSMRA80A01H501U",
                "phone": "+391234567890",
            },
        )
        if st.button("Register") and payload:
            show_response(requests.post(api_url("/auth/register"), json=payload, timeout=10))

        st.subheader("Me")
        if st.button("GET /me"):
            show_response(requests.get(api_url("/me"), headers=headers(), timeout=10))

with reports_tab:
    col1, col2 = st.columns(2)
    with col1:
        st.subheader("Create report")
        report_payload = json_input(
            "Report payload",
            {
                "category_id": 1,
                "latitude": 41.9028,
                "longitude": 12.4964,
                "address": "Via Roma 1",
                "description": "Lampione non funzionante",
            },
        )
        if st.button("Create report") and report_payload:
            show_response(
                requests.post(
                    api_url("/reports"),
                    json=report_payload,
                    headers=headers(),
                    timeout=10,
                )
            )

        st.subheader("List reports")
        status = st.text_input("Status filter")
        params = {"status": status} if status else {}
        if st.button("GET /reports"):
            show_response(
                requests.get(
                    api_url("/reports"),
                    params=params,
                    headers=headers(),
                    timeout=10,
                )
            )

    with col2:
        report_id = st.number_input("Report id", min_value=1, step=1)
        if st.button("Detail"):
            show_response(
                requests.get(
                    api_url(f"/reports/{report_id}"),
                    headers=headers(),
                    timeout=10,
                )
            )

        st.subheader("Upload media")
        files = st.file_uploader(
            "Images or videos",
            accept_multiple_files=True,
            type=["jpg", "jpeg", "png", "webp", "mp4", "webm", "mov"],
        )
        if st.button("Upload") and files:
            multipart = [
                ("file", (file.name, file.getvalue(), file.type or "application/octet-stream"))
                for file in files
            ]
            show_response(
                requests.post(
                    api_url(f"/reports/{report_id}/media"),
                    headers=headers(),
                    files=multipart,
                    timeout=60,
                )
            )

        st.subheader("Workflow")
        new_status = st.selectbox(
            "Status",
            ["UNDER_REVIEW", "ASSIGNED", "IN_PROGRESS", "RESOLVED", "REJECTED", "CLOSED"],
        )
        if st.button("Update status"):
            show_response(
                requests.patch(
                    api_url(f"/reports/{report_id}/status"),
                    json={"status": new_status, "note": "Updated from Visione Lab"},
                    headers=headers(),
                    timeout=10,
                )
            )

with admin_tab:
    st.subheader("Reference data")
    endpoint = st.selectbox("Endpoint", ["/admin/categories", "/admin/areas", "/admin/teams", "/admin/stats/overview", "/admin/users"])
    if st.button("GET admin endpoint"):
        show_response(requests.get(api_url(endpoint), headers=headers(), timeout=10))

with docs_tab:
    st.link_button("Swagger UI", api_url("/docs"))
    if st.button("Fetch OpenAPI"):
        show_response(requests.get(api_url("/openapi.json"), timeout=10))

with st.sidebar:
    st.text_input("Backend API", key="base_url")
    st.text_input("Bearer token", key="token", type="password")
    st.link_button("MailHog", "http://127.0.0.1:8025")
    if st.button("Health check"):
        show_response(requests.get(api_url("/health"), timeout=5))