From 44dbd947df219266ed0b3da5b77fc7c2a60f9552 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <matthias.beyer@atos.net>
Date: Tue, 23 Apr 2019 15:04:22 +0200
Subject: Implement JSON frontend

---
 src/frontend/json.rs | 48 ++++--------------------------------------------
 1 file changed, 4 insertions(+), 44 deletions(-)

diff --git a/src/frontend/json.rs b/src/frontend/json.rs
index 7430040..9cf5573 100644
--- a/src/frontend/json.rs
+++ b/src/frontend/json.rs
@@ -18,56 +18,16 @@ impl JsonFrontend {
 }
 
 impl Frontend for JsonFrontend {
-    /// TODO: Implement to-JSON
     fn list_packages(&self, packages: Vec<Package>) -> Result<()> {
+        let output = serde_json::ser::to_string_pretty(&packages).map_err(Error::from)?;
         let mut outlock = self.0.lock();
-
-        packages.iter().fold(Ok(()), |accu, package| {
-            accu.and_then(|_| {
-                let status = if let Some(stat) = package.status() {
-                    format!("{}", stat)
-                } else {
-                    String::from("No status")
-                }; // not optimal, but works for now.
-
-                let url = if let Some(url) = package.www() {
-                    if let Some(url) = url.first() {
-                        format!("{}", url.deref())
-                    } else {
-                        String::from("")
-                    }
-                } else {
-                    String::from("")
-                }; // not optimal, but works for now
-
-                writeln!(outlock,
-                         "{name:10} - {version:8} - {repo:15} - {status:5} - {www}",
-                         name = package.name().deref(),
-                         version = package.version().deref(),
-                         repo = package.repo().deref(),
-                         status = status,
-                         www = url).map(|_| ()).map_err(Error::from)
-            })
-        })
+        writeln!(outlock, "{}", output).map_err(Error::from)
     }
 
-    /// TODO: Implement to-JSON
     fn list_problems(&self, problems: Vec<Problem>) -> Result<()> {
+        let output = serde_json::ser::to_string_pretty(&problems).map_err(Error::from)?;
         let mut outlock = self.0.lock();
-
-        problems.iter().fold(Ok(()), |accu, problem| {
-            accu.and_then(|_| {
-                writeln!(outlock,
-                         "{repo:10} - {name:10} - {effname:10} - {maintainer:15} - {desc}",
-                         repo = problem.repo().deref(),
-                         name = problem.name().deref(),
-                         effname = problem.effname().deref(),
-                         maintainer = problem.maintainer().deref(),
-                         desc = problem.problem_description())
-                    .map(|_| ())
-                    .map_err(Error::from)
-            })
-        })
+        writeln!(outlock, "{}", output).map_err(Error::from)
     }
 }
 
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