import sqlite3

import pytest

from backend.model.student import Student
from backend.model.tribe import Tribe
from backend.repository.student_sqlite_repository import (
    StudentRepositoryError,
    StudentSQLiteRepository,
)
from tests.integration.test_repository_tribe_sqlite import populate_tribes
from tests.model.fakes import build_student


def populate_students(conn, tribes: list[Tribe]) -> list[Student]:
    cursor = conn.cursor()
    prebuild_students = build_student(tribes, 2)
    cursor.executemany(
        """
        INSERT INTO students(id, name, tribe_name) VALUES (:id, :name, :tribe_name)
    """,
        [s.to_dict() for s in prebuild_students],
    )
    conn.commit()

    return prebuild_students


def test_get_student(sqlite_conn):
    prebuild_tribes = populate_tribes(sqlite_conn)
    prebuild_students = populate_students(sqlite_conn, prebuild_tribes)

    student_repo = StudentSQLiteRepository(sqlite_conn)

    student_id = prebuild_students[0].id
    student = student_repo.get(student_id, prebuild_tribes)

    assert prebuild_students[0] == student


def test_get_student_not_exists(sqlite_conn):
    prebuild_tribes = populate_tribes(sqlite_conn)
    prebuild_students = populate_students(sqlite_conn, prebuild_tribes)

    student_repo = StudentSQLiteRepository(sqlite_conn)
    with pytest.raises(ValueError):
        student_repo.get("student0", prebuild_tribes)


def test_list_students(sqlite_conn):
    prebuild_tribes = populate_tribes(sqlite_conn)
    prebuild_students = populate_students(sqlite_conn, prebuild_tribes)

    student_repo = StudentSQLiteRepository(sqlite_conn)
    students = student_repo.list(prebuild_tribes)

    assert prebuild_students == students


def test_add_student(sqlite_conn):
    prebuild_tribes = populate_tribes(sqlite_conn)

    student_repo = StudentSQLiteRepository(sqlite_conn)

    student_infos = {"name": "student1", "tribe": prebuild_tribes[0]}
    student = Student(**student_infos)
    student_repo.add(student)
    sqlite_conn.commit()

    cursor = sqlite_conn.cursor()
    cursor.execute(
        """
        SELECT id, name, tribe_name FROM students WHERE id=?
        """,
        (student.id,),
    )

    row = cursor.fetchone()
    assert row == student.to_tuple()


def test_add_student_fail_exists(sqlite_conn):
    prebuild_tribes = populate_tribes(sqlite_conn)

    student_repo = StudentSQLiteRepository(sqlite_conn)

    student_infos = {"name": "student1", "tribe": prebuild_tribes[0]}
    student = Student(**student_infos)
    student_repo.add(student)
    sqlite_conn.commit()

    with pytest.raises(sqlite3.IntegrityError):
        student_repo.add(student)


def test_update_student(sqlite_conn):
    prebuild_tribes = populate_tribes(sqlite_conn)
    prebuild_students = populate_students(sqlite_conn, prebuild_tribes)

    student_repo = StudentSQLiteRepository(sqlite_conn)

    student = prebuild_students[0]
    student.name = "Boby"
    student.tribe = prebuild_tribes[-1]

    student_repo.update(student)
    sqlite_conn.commit()

    student_list = student_repo.list(prebuild_tribes)
    assert set(student_list) == set(prebuild_students)

    moded_student = next(filter(lambda s: s.id == student.id, student_list))
    assert moded_student == student


def test_update_student_does_not_exists(sqlite_conn):
    prebuild_tribes = populate_tribes(sqlite_conn)

    student_repo = StudentSQLiteRepository(sqlite_conn)

    student = Student(name="jkl", tribe=prebuild_tribes[0])

    with pytest.raises(StudentRepositoryError):
        student_repo.update(student)


def test_delete_student(sqlite_conn):
    prebuild_tribes = populate_tribes(sqlite_conn)
    prebuild_students = populate_students(sqlite_conn, prebuild_tribes)

    student_repo = StudentSQLiteRepository(sqlite_conn)

    deleted_student = prebuild_students.pop()
    student_repo.delete(deleted_student)
    sqlite_conn.commit()

    assert student_repo.list(prebuild_tribes) == prebuild_students