From 0d72a2b411e66e656662a5287971b17856ea5a67 Mon Sep 17 00:00:00 2001
From: davidovski <git@davidovski.xyz>
Date: Wed, 10 Nov 2021 12:13:01 +0000
Subject: added package info downloading

---
 src/util.py          |  3 ++
 src/verbs/install.py | 86 +++++++++++++++++++++++++++++++++++++---------------
 2 files changed, 64 insertions(+), 25 deletions(-)

diff --git a/src/util.py b/src/util.py
index 3badca0..16df7bc 100644
--- a/src/util.py
+++ b/src/util.py
@@ -7,6 +7,9 @@ import os
 DEFAULT_BAR_COLOR = colors.BLACK + colors.BG_CYAN
 DEFAULT_BAR_COLOR_RESET = colors.BG_BLACK + colors.CYAN
 
+def add_path(a, b):
+    return a + (b if a[-1] == "/" else f"/{b}")
+
 def loading_bar(completed, total, text, 
         unit="", color=DEFAULT_BAR_COLOR, reset=DEFAULT_BAR_COLOR_RESET):
 
diff --git a/src/verbs/install.py b/src/verbs/install.py
index 686178e..703a7ee 100644
--- a/src/verbs/install.py
+++ b/src/verbs/install.py
@@ -3,34 +3,70 @@ import util
 import colors
 import time
 
+def find_package(query, repos, packages_dir):
+    sources = []
+    checksum = None
+    requested_repo = None
+
+    for repo in repos:
+        repo_dir = os.path.join(packages_dir, repo)
+        files = os.listdir(repo_dir)
+
+        if query in files:
+            requested_repo = repo
+            with open(os.path.join(repo_dir, query)) as file:
+                checksum = file.readline().strip().split("=")[-1]
+                sources = file.readline().strip().split("=")[-1].split()
+                return checksum, sources, requested_repo
+    return None, [], None
+
+
+def retrieve_package_info(sources, checksum, package_name, 
+                            verbose=False, skip_verification=False):
+    for source,url in sources.items():
+        package_info_url = util.add_path(url, package_name + ".xipkg.info")
+        status, response = util.curl(package_info_url)
+   
+        if status == 200:
+            info = parse_package_info(response)
+            if info["CHECKSUM"] == checksum or skip_verification:
+                return info
+            else:
+                if verbose:
+                    print(colors.RED + f"Checksum verification failed for {package_name} in {source}" + colors.RESET)
+    if verbose:
+        print(colors.RED + f"No matching hashes found" + colors.RESET)
+    return {}
+
+def parse_package_info(packageinfo):
+    info = {}
+
+    for line in packageinfo.split("\n"):
+        split = line.split("=")
+        if len(split) > 1:
+            info[split[0]] = "=".join(split[1:])
+    return info
+
+
 def install(args, options, config):
+    sources = config["sources"]
+    repos = config["repos"]
+
+    v = options["v"]
+
+    packages_dir = config["dir"]["packages"]
     for query in args:
-        sources = config["sources"]
-        repos = config["repos"]
-
-        v = options["v"]
-
-        packages_dir = config["dir"]["packages"]
-        
-        sources = []
-        checksum = None
-        requested_repo = None
-
-        for repo in repos:
-            repo_dir = os.path.join(packages_dir, repo)
-            files = os.listdir(repo_dir)
-
-            if query in files:
-                requested_repo = repo
-                with open(os.path.join(repo_dir, query)) as file:
-                    checksum = file.read().split("=")[-1]
-                    sources = file.read().split("=")[-1].split()
-                break
+
+        # FIRST CHECK IF ALREADY INSTALLED
+
+        checksum, listed_sources, repo = find_package(query, repos, packages_dir)
+
         if checksum is not None:
-            print(query)
-            print(checksum)
-            print(sources)
-            print(requested_repo)
+            repo_sources = {source: util.add_path(url, repo) for source, url in sources.items() if source in listed_sources}
+
+            info = retrieve_package_info(repo_sources, checksum, query, verbose=v)
+
+            print(info)
         else:
             print(colors.RED + "Package not found")
         print(colors.RESET, end="")
-- 
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