#!/usr/bin/env python

import sys
from pmtiles.reader import Reader, MmapSource, load_directory

if len(sys.argv) <= 1:
    print("Usage: pmtiles-show PMTILES_FILE")
    print("Usage: pmtiles-show PMTILES_FILE Z X Y")
    print("Usage: pmtiles-show PMTILES_FILE list")
    exit(1)

with open(sys.argv[1], "r+b") as f:
    reader = Reader(MmapSource(f))
    spec_version = reader.header().version
    if len(sys.argv) == 2:
        print("spec version: ", spec_version)
        print("metadata:")
        for k, v in reader.header().metadata.items():
            print(k, "=", v)
        print("root dir tiles:", len(reader.header().root_dir))
        print("leaf directories:", len(set(reader.header().leaves.values())))
    elif len(sys.argv) == 3:

        last_val = None
        for k, v in reader.header().root_dir.items():
            print(f"{k[0]} {k[1]} {k[2]} {v[0]} {v[1]}")
            if last_val and k <= last_val:
                raise Exception("Error: directory entries not sorted")
            last_val = k

        for val in set(reader.header().leaves.values()):
            dir_bytes = reader.get_bytes(val[0], val[1])
            leaf_dir, _ = load_directory(dir_bytes, 0, val[1] // 17)
            last_val = None
            for k, v in leaf_dir.items():
                print(f"{k[0]} {k[1]} {k[2]} {v[0]} {v[1]}")
                if last_val and k <= last_val:
                    raise Exception("Error: directory entries not sorted")
                last_val = k
    else:
        z = int(sys.argv[2])
        x = int(sys.argv[3])
        y = int(sys.argv[4])
        print(reader.get(z, x, y))