"""tools/lgbot_rec.py: parsing a recording and the movement stats."""
import os, sys, unittest

sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
import lgbot_rec as r  # noqa: E402


def rec(seconds, human_fn, bot_fn, dt=0.025):
    """Recording lines: human_fn/bot_fn(t) -> (x, y, z, vx, vy, vz)."""
    lines = ["# start 0 map test"]
    t = 0.0
    while t < seconds:
        for who, fn, state in (("h1", human_fn, ""), ("bot", bot_fn, "steer")):
            x, y, z, vx, vy, vz = fn(t)
            lines.append("%.3f,%s,1,100,%.0f,%.0f,%.0f,%.0f,%.0f,%.0f,%s" % (t, who, x, y, z, vx, vy, vz, state))
        t += dt
    return lines


def adad(hold_s):
    # sideways (y) at 320 u/s, switching every hold_s, standing 450 in front of the other on x
    def fn(t):
        d = 1 if int(t / hold_s) % 2 == 0 else -1
        return (0, 0, 0, 0, 320 * d, 0)
    return fn


def still_at(x):
    return lambda t: (x, 0, 0, 0, 0, 0)


class Stats(unittest.TestCase):
    def test_strafe_holds_and_sideways(self):
        s = r.parse(rec(10, adad(0.5), still_at(450)))
        st = r.analyze(r.by_kind(r.fight_frames(s[0]))["human"])
        self.assertAlmostEqual(st["hold_ms"][1], 500, delta=30)
        self.assertGreater(st["sideways_share"], 0.95)
        self.assertEqual(st["air_share"], 0)
        self.assertAlmostEqual(st["ground_speed"][1], 320, delta=1)
        self.assertAlmostEqual(st["seconds"], 10, delta=0.1)

    def test_bot_steer_share_and_stopped(self):
        s = r.parse(rec(5, adad(0.5), still_at(450)))
        st = r.analyze(r.by_kind(r.fight_frames(s[0]))["bot"])
        self.assertEqual(st["steer_share"], 1)
        self.assertEqual(st["stopped_share"], 1)

    def test_jumps_counted(self):
        def hop(t):  # one jump a second: 0.7 s in the air, then ground
            ph = t % 1.0
            return (0, 0, 0, 0, 320, 270 - 800 * ph if ph < 0.7 else 0)
        st = r.analyze(r.by_kind(r.fight_frames(r.parse(rec(10, hop, still_at(450)))[0]))["human"])
        self.assertAlmostEqual(st["jumps_per_s"], 1.0, delta=0.15)
        self.assertAlmostEqual(st["air_share"], 0.7, delta=0.05)

    def test_far_or_other_floor_is_not_fight_time(self):
        far = r.fight_frames(r.parse(rec(2, adad(0.5), still_at(1500)))[0])
        up = r.fight_frames(r.parse(rec(2, adad(0.5), lambda t: (450, 0, 400, 0, 0, 0)))[0])
        self.assertEqual(far, {})
        self.assertEqual(up, {})

    def test_sessions_do_not_join(self):
        lines = rec(2, adad(0.5), still_at(450)) + rec(2, adad(0.5), still_at(450))
        sessions = r.parse(lines)
        self.assertEqual(len(sessions), 2)
        frames = r.fight_frames(sessions[0])["h1"] + r.fight_frames(sessions[1])["h1"]
        self.assertAlmostEqual(r.analyze(frames)["seconds"], 4, delta=0.1)

    def test_two_humans_kept_apart(self):
        # h1 strafes with 0.5 s holds, h2 with 0.25 s holds, no bot: each is measured on its own
        lines = ["# start 0 map test"]
        for i in range(400):
            t = i * 0.025
            for who, hold, x in (("h1", 0.5, 0), ("h2", 0.25, 450)):
                d = 1 if int(t / hold) % 2 == 0 else -1
                lines.append("%.3f,%s,1,100,%d,0,0,0,%d,0," % (t, who, x, 320 * d))
        per = r.fight_frames(r.parse(lines)[0])
        self.assertEqual(sorted(per), ["h1", "h2"])
        self.assertAlmostEqual(r.analyze(per["h1"])["hold_ms"][1], 500, delta=30)
        self.assertAlmostEqual(r.analyze(per["h2"])["hold_ms"][1], 250, delta=30)
        both = r.by_kind(per)["human"]
        self.assertAlmostEqual(r.analyze(both)["seconds"], 20, delta=0.2)
        self.assertEqual(r.analyze(r.by_kind(per)["bot"])["frames"], 0)

    def test_report_prints(self):
        st = r.analyze(r.fight_frames(r.parse(rec(2, adad(0.5), still_at(450)))[0])["h1"])
        self.assertIn("strafe hold", r.report(st, r.analyze([])))


if __name__ == "__main__":
    unittest.main()