"""The relayed-command dispatcher: what runs, what asks first, what's refused."""

import json
import sys
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent.parent))

from bolt_console import tools as tools_mod
from bolt_console.tools import Tools


class FakeUI:
    def __init__(self, answers=()):
        self.answers = list(answers)
        self.calls = []
        self.results = []
        self.questions = []

    def tool_call(self, name, argument):
        self.calls.append((name, argument))

    def tool_result(self, text, error=False):
        self.results.append((text, error))

    def diff(self, old, new):
        self.calls.append(("diff", old, new))

    def confirm(self, question):
        self.questions.append(question)
        return self.answers.pop(0) if self.answers else "no"


class FakeShell:
    def __init__(self, output="[exit 0]\nhello"):
        self.output = output
        self.ran = []

    def __call__(self, command):
        self.ran.append(command)
        return self.output


def filectl(**payload) -> str:
    return "filectl " + json.dumps(payload)


def test_shell_command_asks_first_and_runs_on_yes():
    ui, shell = FakeUI(["yes"]), FakeShell()
    output = Tools(ui, run_shell=shell).handle("echo hello")
    assert shell.ran == ["echo hello"]
    assert output == "[exit 0]\nhello"
    assert ui.calls == [("Shell", "echo hello")]
    assert ui.results == [("hello", False)]


def test_declined_command_never_runs_and_tells_the_model_why():
    ui, shell = FakeUI(["no"]), FakeShell()
    output = Tools(ui, run_shell=shell).handle("rm -rf build")
    assert shell.ran == []
    assert "declined" in output and "did not run" in output


def test_always_switches_the_session_to_auto():
    ui, shell = FakeUI(["always"]), FakeShell()
    tools = Tools(ui, run_shell=shell)
    tools.handle("echo one")
    tools.handle("echo two")
    assert tools.mode == "auto"
    assert len(ui.questions) == 1
    assert shell.ran == ["echo one", "echo two"]


def test_auto_mode_never_asks():
    ui, shell = FakeUI(), FakeShell()
    Tools(ui, mode="auto", run_shell=shell).handle("echo hi")
    assert ui.questions == []
    assert shell.ran == ["echo hi"]


def test_failed_command_is_shown_as_an_error_with_its_status():
    ui = FakeUI(["yes"])
    Tools(ui, run_shell=FakeShell("[exit 2]\nno such file")).handle("cat nope")
    assert ui.results == [("[exit 2]\nno such file", True)]


def test_reads_and_lists_never_ask(tmp_path):
    (tmp_path / "a.txt").write_text("one\ntwo\n", encoding="utf-8")
    ui = FakeUI()
    tools = Tools(ui, run_shell=FakeShell())
    read = tools.handle(filectl(op="read", path=str(tmp_path / "a.txt")))
    listed = tools.handle(filectl(op="list", path=str(tmp_path)))
    assert ui.questions == []
    assert "one" in read and "two" in read
    assert "a.txt" in listed
    assert ui.calls[0] == ("Read", str(tmp_path / "a.txt"))
    assert ui.results[0] == ("Read 2 lines", False)


def test_write_asks_and_declining_leaves_the_disk_alone(tmp_path):
    target = tmp_path / "new.txt"
    ui = FakeUI(["no"])
    output = Tools(ui).handle(filectl(op="write", path=str(target), content="x"))
    assert not target.exists()
    assert "declined" in output


def test_edit_shows_the_diff_then_applies_on_yes(tmp_path):
    target = tmp_path / "f.py"
    target.write_text("x = 1\n", encoding="utf-8")
    ui = FakeUI(["yes"])
    output = Tools(ui).handle(filectl(op="edit", path=str(target), old="x = 1", new="x = 2"))
    assert target.read_text(encoding="utf-8") == "x = 2\n"
    assert ("diff", "x = 1", "x = 2") in ui.calls
    assert "edited" in output


def test_filectl_errors_go_back_to_the_model_not_up_the_stack(tmp_path):
    ui = FakeUI()
    output = Tools(ui).handle(filectl(op="read", path=str(tmp_path / "missing.txt")))
    assert output.startswith("[filectl] no such file")
    assert ui.results[-1][1] is True


def test_pet_commands_are_explained_rather_than_run():
    ui, shell = FakeUI(), FakeShell()
    output = Tools(ui, mode="auto", run_shell=shell).handle("petctl emote wave")
    assert shell.ran == []
    assert output == tools_mod.PET_UNAVAILABLE.format(name="petctl")


def test_dialogue_scenes_are_explained_rather_than_run():
    shell = FakeShell()
    output = Tools(FakeUI(), mode="auto", run_shell=shell).handle('dialoguectl {"lines": []}')
    assert shell.ran == []
    assert "isn't available" in output


def test_a_stray_command_label_is_stripped_and_reported():
    """Seen live: the server relayed `command: powershell -Command "..."` and
    cmd.exe answered "'command:' is not recognized"."""
    ui, shell = FakeUI(["yes"]), FakeShell()
    output = Tools(ui, run_shell=shell).handle('command: powershell -Command "Get-PnpDevice"')
    assert shell.ran == ['powershell -Command "Get-PnpDevice"']
    assert ui.calls[0] == ("Shell", 'powershell -Command "Get-PnpDevice"')
    assert 'removed a leading "command:" label' in output


def test_wrapping_backticks_are_stripped():
    shell = FakeShell()
    Tools(FakeUI(), mode="auto", run_shell=shell).handle("`git status`")
    assert shell.ran == ["git status"]


def test_the_label_is_stripped_before_filectl_is_recognised(tmp_path):
    (tmp_path / "a.txt").write_text("hi", encoding="utf-8")
    output = Tools(FakeUI()).handle(
        "command: filectl " + json.dumps({"op": "read", "path": str(tmp_path / "a.txt")}))
    assert "hi" in output and "command:" in output  # read ran; note explains the fix


def test_a_clean_command_gets_no_note():
    output = Tools(FakeUI(), mode="auto", run_shell=FakeShell()).handle("echo hi")
    assert "note" not in output