"""Tests for cli/main.py using click's CliRunner with in-memory-like temp DB."""

import json
import tempfile
from pathlib import Path

import pytest
from click.testing import CliRunner

from cli.main import cli


@pytest.fixture
def runner(tmp_path):
    """CliRunner that uses a temp DB file."""
    db_path = tmp_path / "test.db"
    return CliRunner(), ["--db", str(db_path)]


def invoke(runner_tuple, args):
    runner, base = runner_tuple
    result = runner.invoke(cli, base + args)
    return result


# -- project --

def test_project_add_and_list(runner):
    r = invoke(runner, ["project", "add", "vdol", "В долю поперёк",
                        "~/projects/vdolipoperek", "--tech-stack", '["vue3","nuxt"]'])
    assert r.exit_code == 0
    assert "vdol" in r.output

    r = invoke(runner, ["project", "list"])
    assert r.exit_code == 0
    assert "vdol" in r.output
    assert "В долю поперёк" in r.output


def test_project_list_empty(runner):
    r = invoke(runner, ["project", "list"])
    assert r.exit_code == 0
    assert "No projects" in r.output


def test_project_list_filter_status(runner):
    invoke(runner, ["project", "add", "a", "A", "/a", "--status", "active"])
    invoke(runner, ["project", "add", "b", "B", "/b", "--status", "paused"])

    r = invoke(runner, ["project", "list", "--status", "active"])
    assert "a" in r.output
    assert "b" not in r.output


def test_project_show(runner):
    invoke(runner, ["project", "add", "vdol", "В долю", "/vdol",
                    "--tech-stack", '["vue3"]', "--priority", "2"])
    r = invoke(runner, ["project", "show", "vdol"])
    assert r.exit_code == 0
    assert "vue3" in r.output
    assert "Priority:   2" in r.output


def test_project_show_not_found(runner):
    r = invoke(runner, ["project", "show", "nope"])
    assert r.exit_code == 1
    assert "not found" in r.output


# -- task --

def test_task_add_and_list(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    r = invoke(runner, ["task", "add", "p1", "Fix login bug", "--type", "debug"])
    assert r.exit_code == 0
    assert "P1-001" in r.output

    r = invoke(runner, ["task", "add", "p1", "Add search"])
    assert "P1-002" in r.output

    r = invoke(runner, ["task", "list"])
    assert "P1-001" in r.output
    assert "P1-002" in r.output


def test_task_add_project_not_found(runner):
    r = invoke(runner, ["task", "add", "nope", "Some task"])
    assert r.exit_code == 1
    assert "not found" in r.output


def test_task_list_filter(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    invoke(runner, ["project", "add", "p2", "P2", "/p2"])
    invoke(runner, ["task", "add", "p1", "A"])
    invoke(runner, ["task", "add", "p2", "B"])

    r = invoke(runner, ["task", "list", "--project", "p1"])
    assert "P1-001" in r.output
    assert "P2-001" not in r.output


def test_task_show(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    invoke(runner, ["task", "add", "p1", "Fix bug", "--type", "debug"])
    r = invoke(runner, ["task", "show", "P1-001"])
    assert r.exit_code == 0
    assert "Fix bug" in r.output


def test_task_show_not_found(runner):
    r = invoke(runner, ["task", "show", "X-999"])
    assert r.exit_code == 1
    assert "not found" in r.output


# -- decision --

def test_decision_add_and_list(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    r = invoke(runner, ["decision", "add", "p1", "gotcha",
                        "Safari bug", "position:fixed breaks",
                        "--category", "ui", "--tags", '["ios","css"]'])
    assert r.exit_code == 0
    assert "gotcha" in r.output

    r = invoke(runner, ["decision", "list", "p1"])
    assert "Safari bug" in r.output


def test_decision_list_filter(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    invoke(runner, ["decision", "add", "p1", "gotcha", "A", "a", "--category", "ui"])
    invoke(runner, ["decision", "add", "p1", "decision", "B", "b", "--category", "arch"])

    r = invoke(runner, ["decision", "list", "p1", "--type", "gotcha"])
    assert "A" in r.output
    assert "B" not in r.output


# -- module --

def test_module_add_and_list(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    r = invoke(runner, ["module", "add", "p1", "search", "frontend", "src/search/",
                        "--description", "Search UI"])
    assert r.exit_code == 0
    assert "search" in r.output

    r = invoke(runner, ["module", "list", "p1"])
    assert "search" in r.output
    assert "Search UI" in r.output


# -- status --

def test_status_all(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    invoke(runner, ["task", "add", "p1", "A"])
    invoke(runner, ["task", "add", "p1", "B"])

    r = invoke(runner, ["status"])
    assert r.exit_code == 0
    assert "p1" in r.output
    assert "2" in r.output  # total tasks


def test_status_single_project(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    invoke(runner, ["task", "add", "p1", "A"])

    r = invoke(runner, ["status", "p1"])
    assert r.exit_code == 0
    assert "P1-001" in r.output
    assert "pending" in r.output


def test_status_not_found(runner):
    r = invoke(runner, ["status", "nope"])
    assert r.exit_code == 1
    assert "not found" in r.output


# -- cost --

def test_cost_empty(runner):
    r = invoke(runner, ["cost"])
    assert r.exit_code == 0
    assert "No agent runs" in r.output


def test_cost_with_data(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    # Insert agent log directly via models (no CLI command for this)
    from core.db import init_db
    from core import models as m
    # Re-open the same DB the runner uses
    db_path = runner[1][1]
    conn = init_db(Path(db_path))
    m.log_agent_run(conn, "p1", "dev", "implement",
                    cost_usd=0.10, tokens_used=5000)
    conn.close()

    r = invoke(runner, ["cost", "--last", "7d"])
    assert r.exit_code == 0
    assert "p1" in r.output
    assert "$0.1000" in r.output


# ===========================================================================
# task update
# ===========================================================================

@pytest.mark.parametrize("status", ["pending", "in_progress", "review", "done", "blocked", "decomposed", "cancelled"])
def test_task_update_status(runner, status):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    invoke(runner, ["task", "add", "p1", "Fix bug"])
    r = invoke(runner, ["task", "update", "P1-001", "--status", status])
    assert r.exit_code == 0
    assert status in r.output

    r = invoke(runner, ["task", "show", "P1-001"])
    assert status in r.output


def test_task_update_priority(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    invoke(runner, ["task", "add", "p1", "Fix bug"])
    r = invoke(runner, ["task", "update", "P1-001", "--priority", "1"])
    assert r.exit_code == 0
    assert "priority=1" in r.output


def test_task_update_not_found(runner):
    r = invoke(runner, ["task", "update", "NOPE", "--status", "done"])
    assert r.exit_code != 0


def test_task_update_no_fields(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    invoke(runner, ["task", "add", "p1", "Fix bug"])
    r = invoke(runner, ["task", "update", "P1-001"])
    assert r.exit_code != 0


# ===========================================================================
# hook
# ===========================================================================

def test_hook_add_and_list(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    r = invoke(runner, ["hook", "add",
                        "--project", "p1",
                        "--name", "rebuild",
                        "--event", "pipeline_completed",
                        "--command", "npm run build"])
    assert r.exit_code == 0
    assert "rebuild" in r.output
    assert "pipeline_completed" in r.output

    r = invoke(runner, ["hook", "list", "--project", "p1"])
    assert r.exit_code == 0
    assert "rebuild" in r.output
    assert "npm run build" in r.output


def test_hook_add_with_module_path(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    r = invoke(runner, ["hook", "add",
                        "--project", "p1",
                        "--name", "fe-build",
                        "--event", "pipeline_completed",
                        "--command", "make build",
                        "--module-path", "web/frontend/*",
                        "--working-dir", "/tmp"])
    assert r.exit_code == 0
    r = invoke(runner, ["hook", "list", "--project", "p1"])
    assert "web/frontend/*" in r.output


def test_hook_add_project_not_found(runner):
    r = invoke(runner, ["hook", "add",
                        "--project", "nope",
                        "--name", "x",
                        "--event", "pipeline_completed",
                        "--command", "echo hi"])
    assert r.exit_code == 1
    assert "not found" in r.output


def test_hook_list_empty(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    r = invoke(runner, ["hook", "list", "--project", "p1"])
    assert r.exit_code == 0
    assert "No hooks" in r.output


def test_hook_remove(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    invoke(runner, ["hook", "add",
                    "--project", "p1",
                    "--name", "rebuild",
                    "--event", "pipeline_completed",
                    "--command", "make"])
    r = invoke(runner, ["hook", "remove", "1"])
    assert r.exit_code == 0
    assert "Removed" in r.output

    r = invoke(runner, ["hook", "list", "--project", "p1"])
    assert "No hooks" in r.output


def test_hook_remove_not_found(runner):
    r = invoke(runner, ["hook", "remove", "999"])
    assert r.exit_code == 1
    assert "not found" in r.output


def test_hook_logs_empty(runner):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    r = invoke(runner, ["hook", "logs", "--project", "p1"])
    assert r.exit_code == 0
    assert "No hook logs" in r.output


def test_hook_setup_registers_rebuild_frontend(runner, tmp_path):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    r = invoke(runner, ["hook", "setup", "--project", "p1",
                        "--scripts-dir", str(tmp_path)])
    assert r.exit_code == 0
    assert "rebuild-frontend" in r.output

    r = invoke(runner, ["hook", "list", "--project", "p1"])
    assert r.exit_code == 0
    assert "rebuild-frontend" in r.output
    assert "web/frontend/*" in r.output


def test_hook_setup_idempotent(runner, tmp_path):
    invoke(runner, ["project", "add", "p1", "P1", "/p1"])
    invoke(runner, ["hook", "setup", "--project", "p1", "--scripts-dir", str(tmp_path)])
    r = invoke(runner, ["hook", "setup", "--project", "p1", "--scripts-dir", str(tmp_path)])
    assert r.exit_code == 0
    assert "already exists" in r.output

    r = invoke(runner, ["hook", "list", "--project", "p1"])
    # Only one hook, not duplicated
    assert r.output.count("rebuild-frontend") == 1


def test_hook_setup_project_not_found(runner):
    r = invoke(runner, ["hook", "setup", "--project", "nope"])
    assert r.exit_code == 1
    assert "not found" in r.output