"""Maker blueprint - recipe creation and editing."""
from flask import Blueprint, flash, jsonify, redirect, render_template, request, url_for
from flask_babel import gettext as _

from blueprints.auth import login_required, role_required
from services.api_client import api_client

maker_bp = Blueprint("maker", __name__, url_prefix="/maker")


# ============================================================================
# PAGINE (GET)
# ============================================================================

@maker_bp.route("/recipes")
@login_required
@role_required("Maker")
def recipe_list():
    """List all recipes with filters."""
    page = request.args.get("page", 1, type=int)
    per_page = request.args.get("per_page", 100, type=int)
    search = request.args.get("search", "", type=str)

    params = {"page": page, "per_page": per_page}
    if search:
        params["search"] = search

    resp = api_client.get("/api/recipes", params=params)

    if resp.get("error"):
        flash(_("Errore nel caricamento delle ricette: %(error)s", error=resp.get("detail", "")), "error")
        recipes = []
        total = 0
        pages = 0
    else:
        recipes = resp.get("items", [])
        total = resp.get("total", 0)
        pages = resp.get("pages", 1)

    return render_template(
        "maker/recipe_list.html",
        recipes=recipes,
        page=page,
        per_page=per_page,
        total=total,
        pages=pages,
        search=search
    )


@maker_bp.route("/recipes/new")
@login_required
@role_required("Maker")
def recipe_new():
    """Create new recipe."""
    return render_template("maker/recipe_editor.html", recipe=None)


@maker_bp.route("/recipes/<int:recipe_id>/edit")
@login_required
@role_required("Maker")
def recipe_edit(recipe_id: int):
    """Edit existing recipe."""
    # Carica recipe con dettagli completi
    resp = api_client.get(f"/api/recipes/{recipe_id}")

    if resp.get("error"):
        flash(_("Errore nel caricamento della ricetta: %(error)s", error=resp.get("detail", "")), "error")
        return redirect(url_for("maker.recipe_list"))

    recipe = resp

    # Carica anche le versioni
    versions_resp = api_client.get(f"/api/recipes/{recipe_id}/versions")
    if isinstance(versions_resp, list):
        recipe["versions"] = versions_resp
    else:
        recipe["versions"] = []

    return render_template("maker/recipe_editor.html", recipe=recipe)


@maker_bp.route("/recipes/<int:recipe_id>/tasks")
@login_required
@role_required("Maker")
def task_editor(recipe_id: int):
    """Task/subtask editor with tolerances."""
    # Carica recipe con task/subtask
    resp = api_client.get(f"/api/recipes/{recipe_id}")

    if resp.get("error"):
        flash(_("Errore nel caricamento della ricetta: %(error)s", error=resp.get("detail", "")), "error")
        return redirect(url_for("maker.recipe_list"))

    recipe = resp

    # Carica tasks con subtasks
    tasks_resp = api_client.get(f"/api/recipes/{recipe_id}/tasks")
    if isinstance(tasks_resp, list):
        recipe["tasks"] = tasks_resp
    else:
        recipe["tasks"] = []

    return render_template("maker/task_editor.html", recipe=recipe)


@maker_bp.route("/recipes/<int:recipe_id>/preview")
@login_required
@role_required("Maker")
def recipe_preview(recipe_id: int):
    """Preview recipe as MeasurementTec would see it."""
    # Carica recipe completo
    resp = api_client.get(f"/api/recipes/{recipe_id}")

    if resp.get("error"):
        flash(_("Errore nel caricamento della ricetta: %(error)s", error=resp.get("detail", "")), "error")
        return redirect(url_for("maker.recipe_list"))

    recipe = resp

    # Carica tasks con subtasks
    tasks_resp = api_client.get(f"/api/recipes/{recipe_id}/tasks")
    if isinstance(tasks_resp, list):
        recipe["tasks"] = tasks_resp
    else:
        recipe["tasks"] = []

    return render_template("maker/recipe_preview.html", recipe=recipe)


@maker_bp.route("/recipes/<int:recipe_id>/versions")
@login_required
@role_required("Maker")
def version_history(recipe_id: int):
    """Version history with diff."""
    # Carica recipe base
    resp = api_client.get(f"/api/recipes/{recipe_id}")

    if resp.get("error"):
        flash(_("Errore nel caricamento della ricetta: %(error)s", error=resp.get("detail", "")), "error")
        return redirect(url_for("maker.recipe_list"))

    recipe = resp

    # Carica versioni
    versions_resp = api_client.get(f"/api/recipes/{recipe_id}/versions")
    if isinstance(versions_resp, list):
        versions = versions_resp
    else:
        versions = []
        flash(_("Errore nel caricamento delle versioni: %(error)s",
               error=versions_resp.get("detail", "") if isinstance(versions_resp, dict) else ""), "warning")

    return render_template("maker/version_history.html", recipe=recipe, versions=versions)


# ============================================================================
# API PROXY AJAX (JSON)
# ============================================================================

@maker_bp.route("/api/recipes", methods=["POST"])
@login_required
@role_required("Maker")
def api_create_recipe():
    """Proxy: Create new recipe."""
    data = request.get_json(silent=True) or {}

    resp = api_client.post("/api/recipes", data=data)

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    return jsonify(resp), 201


@maker_bp.route("/api/recipes/<int:recipe_id>", methods=["PUT"])
@login_required
@role_required("Maker")
def api_update_recipe(recipe_id: int):
    """Proxy: Update recipe (creates new version)."""
    data = request.get_json(silent=True) or {}

    resp = api_client.put(f"/api/recipes/{recipe_id}", data=data)

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    return jsonify(resp), 200


@maker_bp.route("/api/recipes/<int:recipe_id>", methods=["DELETE"])
@login_required
@role_required("Maker")
def api_delete_recipe(recipe_id: int):
    """Proxy: Delete recipe (soft delete)."""
    resp = api_client.delete(f"/api/recipes/{recipe_id}")

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    return jsonify(resp), 200


# ============================================================================
# TASK API PROXY
# ============================================================================

@maker_bp.route("/api/recipes/<int:recipe_id>/tasks", methods=["POST"])
@login_required
@role_required("Maker")
def api_create_task(recipe_id: int):
    """Proxy: Create new task."""
    data = request.get_json(silent=True) or {}

    resp = api_client.post(f"/api/recipes/{recipe_id}/tasks", data=data)

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    return jsonify(resp), 201


@maker_bp.route("/api/tasks/<int:task_id>", methods=["PUT"])
@login_required
@role_required("Maker")
def api_update_task(task_id: int):
    """Proxy: Update task."""
    data = request.get_json(silent=True) or {}

    resp = api_client.put(f"/api/tasks/{task_id}", data=data)

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    return jsonify(resp), 200


@maker_bp.route("/api/tasks/<int:task_id>", methods=["DELETE"])
@login_required
@role_required("Maker")
def api_delete_task(task_id: int):
    """Proxy: Delete task."""
    resp = api_client.delete(f"/api/tasks/{task_id}")

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    # 204 No Content returns empty dict
    return jsonify(resp), 204


@maker_bp.route("/api/tasks/reorder", methods=["PUT"])
@login_required
@role_required("Maker")
def api_reorder_tasks():
    """Proxy: Reorder tasks."""
    data = request.get_json(silent=True) or {}

    resp = api_client.put("/api/tasks/reorder", data=data)

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    return jsonify(resp), 200


# ============================================================================
# SUBTASK API PROXY
# ============================================================================

@maker_bp.route("/api/tasks/<int:task_id>/subtasks", methods=["POST"])
@login_required
@role_required("Maker")
def api_create_subtask(task_id: int):
    """Proxy: Create new subtask."""
    data = request.get_json(silent=True) or {}

    resp = api_client.post(f"/api/tasks/{task_id}/subtasks", data=data)

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    return jsonify(resp), 201


@maker_bp.route("/api/subtasks/<int:subtask_id>", methods=["PUT"])
@login_required
@role_required("Maker")
def api_update_subtask(subtask_id: int):
    """Proxy: Update subtask."""
    data = request.get_json(silent=True) or {}

    resp = api_client.put(f"/api/subtasks/{subtask_id}", data=data)

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    return jsonify(resp), 200


@maker_bp.route("/api/subtasks/<int:subtask_id>", methods=["DELETE"])
@login_required
@role_required("Maker")
def api_delete_subtask(subtask_id: int):
    """Proxy: Delete subtask."""
    resp = api_client.delete(f"/api/subtasks/{subtask_id}")

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    # 204 No Content returns empty dict
    return jsonify(resp), 204


# ============================================================================
# FILE API PROXY
# ============================================================================

@maker_bp.route("/api/upload", methods=["POST"])
@login_required
@role_required("Maker")
def api_upload_file():
    """Proxy: Upload file (multipart forward)."""
    # Controlla se c'è un file
    if "file" not in request.files:
        return jsonify({"error": True, "detail": _("Nessun file caricato")}), 400

    file = request.files["file"]
    if file.filename == "":
        return jsonify({"error": True, "detail": _("Nome file vuoto")}), 400

    # Prepara multipart data
    recipe_id = request.form.get("recipe_id")
    version_id = request.form.get("version_id")

    files = {"file": (file.filename, file.stream, file.content_type)}
    data = {}
    if recipe_id:
        data["recipe_id"] = recipe_id
    if version_id:
        data["version_id"] = version_id

    # Forward multipart request
    resp = api_client.post("/api/files/upload", data=data, files=files)

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    return jsonify(resp), 201


@maker_bp.route("/api/files/<path:file_path>", methods=["DELETE"])
@login_required
@role_required("Maker")
def api_delete_file(file_path: str):
    """Proxy: Delete file."""
    resp = api_client.delete(f"/api/files/{file_path}")

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    # 204 No Content returns empty dict
    return jsonify(resp), 204


# ============================================================================
# VERSION API PROXY
# ============================================================================

@maker_bp.route("/api/recipes/<int:recipe_id>/versions/<int:version_number>/measurement-count", methods=["GET"])
@login_required
@role_required("Maker")
def api_get_measurement_count(recipe_id: int, version_number: int):
    """Proxy: Get measurement count for a specific version."""
    resp = api_client.get(f"/api/recipes/{recipe_id}/versions/{version_number}/measurement-count")

    if resp.get("error"):
        return jsonify(resp), resp.get("status_code", 500)

    return jsonify(resp), 200