"""Tests for the GitOps provider choice screen (_render_gitops_choice_page)."""
from __future__ import annotations

import sys
import tkinter as tk
from pathlib import Path

PROJECT_ROOT = Path(__file__).resolve().parents[2]
if str(PROJECT_ROOT) not in sys.path:
    sys.path.insert(0, str(PROJECT_ROOT))

from knoe.ui.screens.base import ScreenBaseMixin
from knoe.ui.screens.gitops import GitOpsScreenMixin


class _DummyGitOpsApp(ScreenBaseMixin, GitOpsScreenMixin):
    """Minimal surface to render the GitOps choice screen."""

    def __init__(self, root: tk.Tk, canvas: tk.Canvas):
        self.root = root
        self.bg_canvas = canvas
        self._canvas_items: list[int] = []
        self._overlay_widgets: list[tk.Widget] = []
        self.gitops_provider = tk.StringVar(master=root, value="gitea")
        self.gitops_enabled = tk.BooleanVar(master=root, value=False)
        self.argocd_enabled = tk.BooleanVar(master=root, value=False)
        self.knoe_cfg_data: dict = {}

    def _save_knoe_cfg(self):
        pass


def _canvas_texts(cnv: tk.Canvas) -> list[str]:
    return [
        cnv.itemcget(item, "text")
        for item in cnv.find_all()
        if cnv.type(item) == "text"
    ]


def test_gitops_choice_page_renders_title_and_options():
    """The choice screen must render a title and all three provider options."""
    root = tk.Tk()
    root.withdraw()
    try:
        canvas = tk.Canvas(root, width=975, height=600, bg="white")
        canvas.pack(fill="both", expand=False)
        root.update()
        app = _DummyGitOpsApp(root, canvas)
        app._render_gitops_choice_page()
        root.update()
        texts = _canvas_texts(canvas)
        assert "GitOps Provider" in texts
        # All three provider labels must appear as Radiobutton text (widget titles).
        widget_texts = [w.cget("text") for w in app._overlay_widgets if isinstance(w, tk.Radiobutton)]
        assert any("Gitea" in t for t in widget_texts)
        assert any("ArgoCD" in t for t in widget_texts)
        assert any("None" in t for t in widget_texts)
    finally:
        root.destroy()


def test_on_gitops_provider_change_syncs_boolean_vars():
    """Selecting a provider must update gitops_enabled and argocd_enabled accordingly."""
    root = tk.Tk()
    root.withdraw()
    try:
        canvas = tk.Canvas(root, width=975, height=600, bg="white")
        canvas.pack()
        root.update()
        app = _DummyGitOpsApp(root, canvas)

        app.gitops_provider.set("gitea")
        app._on_gitops_provider_change()
        assert app.gitops_enabled.get() is True
        assert app.argocd_enabled.get() is False
        assert app.knoe_cfg_data["Optional Features"]["GITOPS_PROVIDER"] == "gitea"

        app.gitops_provider.set("argocd")
        app._on_gitops_provider_change()
        assert app.gitops_enabled.get() is False
        assert app.argocd_enabled.get() is True
        assert app.knoe_cfg_data["Optional Features"]["ARGOCD_ENABLED"] == "True"

        app.gitops_provider.set("none")
        app._on_gitops_provider_change()
        assert app.gitops_enabled.get() is False
        assert app.argocd_enabled.get() is False
        assert app.knoe_cfg_data["Optional Features"]["GITOPS_PROVIDER"] == "none"
    finally:
        root.destroy()