From 845901f41d559c07b1adf8000041c44449a41854 Mon Sep 17 00:00:00 2001
From: Dietmar Maurer <dietmar@proxmox.com>
Date: Fri, 16 Nov 2018 13:14:11 +0100
Subject: [PATCH] implement getopt parser - first try

---
 src/getopts.rs | 109 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/lib.rs     |   1 +
 src/main.rs    |  14 +++++++
 3 files changed, 124 insertions(+)
 create mode 100644 src/getopts.rs

diff --git a/src/getopts.rs b/src/getopts.rs
new file mode 100644
index 00000000..4fd8be20
--- /dev/null
+++ b/src/getopts.rs
@@ -0,0 +1,109 @@
+use crate::api::schema::*;
+
+use failure::*;
+use serde_json::{json, Value};
+
+#[derive(Debug)]
+enum RawArgument {
+    Separator,
+    Argument { value: String },
+    Option { name: String, value: Option<String> },
+}
+
+fn parse_argument(arg: &str) -> RawArgument {
+
+    let chars: Vec<char> = arg.chars().collect();
+
+    let length = chars.len();
+
+    if length >= 2 && chars[0] == '-' &&  chars[1] == '-' {
+
+        if length == 2 { return RawArgument::Separator; }
+
+        for start in 2..length  {
+            if chars[start] == '=' {
+                let name: String = chars[2..start].iter().collect();
+                let value: String = chars[start+1..length].iter().collect();
+                return RawArgument::Option { name, value: Some(value) }
+            }
+        }
+
+        let name: String = chars[2..].iter().collect();
+        return RawArgument::Option { name: name, value: None }
+
+    }
+
+    RawArgument::Argument { value: arg.to_string() }
+}
+
+pub fn parse_arguments(args: &Vec<String>, schema: &Schema) -> Value {
+
+    println!("ARGS {:?}", args);
+
+    let properties = match schema {
+        Schema::Object(ObjectSchema { properties, .. }) => properties,
+        _ => panic!("Expected Object Schema."),
+    };
+
+    let mut data: Vec<(String, String)> = vec![];
+    let mut rest: Vec<String> = vec![];
+
+    let mut pos = 0;
+
+    let mut skip = false;
+
+    loop {
+        if skip {
+            rest.push(args[pos].clone());
+        } else {
+            match parse_argument(&args[pos]) {
+                RawArgument::Separator => {
+                    skip = true;
+                }
+                RawArgument::Option { name, value } => {
+                    match value {
+                        None => {
+                            if pos < args.len() {
+                                if let RawArgument::Argument { value: next } = parse_argument(&args[pos+1]) {
+                                    pos += 1;
+                                    data.push((name, next));
+                                } else {
+                                    if let Some(Schema::Boolean(jss_boolean)) = properties.get::<str>(&name) {
+                                        if let Some(default) = jss_boolean.default {
+                                            if default == false {
+                                                data.push((name, "true".to_string()));
+                                            } else {
+                                                panic!("negative Bool requires argument");
+                                            }
+                                        } else {
+                                            data.push((name, "true".to_string()));
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                        Some(v) => {
+                            data.push((name, v));
+                        }
+                    }
+                }
+                RawArgument::Argument { value } => {
+                    rest.push(value);
+                }
+            }
+        }
+
+        pos += 1;
+        if pos >= args.len() { break; }
+    }
+
+    println!("Options {:?}", data);
+    println!("REST {:?}", rest);
+
+    match parse_parameter_strings(&data, schema, true) {
+        Ok(value) => value,
+        Err(perror) => {
+            panic!(format!("{:?}", perror));
+        }
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index b739a89a..a547fba9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -12,6 +12,7 @@ pub mod api {
 
 }
 
+pub mod getopts;
 
 pub mod api3;
 
diff --git a/src/main.rs b/src/main.rs
index 140bb2ab..d264ed5f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,6 +1,13 @@
+#[macro_use]
+extern crate apitest;
+
+use std::collections::HashMap;
+
+use apitest::api::schema::*;
 use apitest::api::router::*;
 use apitest::api::config::*;
 use apitest::api::server::*;
+use apitest::getopts;
 
 //use failure::*;
 use lazy_static::lazy_static;
@@ -13,6 +20,13 @@ use hyper;
 fn main() {
     println!("Fast Static Type Definitions 1");
 
+    let schema = parameter!{
+        name => ApiString!{ optional => false }
+    };
+
+    let args: Vec<String> = std::env::args().skip(1).collect();
+    getopts::parse_arguments(&args, &schema);
+
     let addr = ([127, 0, 0, 1], 8007).into();
 
     lazy_static!{