1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155

use crate::api_impl::FileConfig;
use crate::internal::AsyncTryFrom;
use crate::traits::BodyExt;
use async_trait::async_trait;
use bytes::{Buf, BytesMut};
use graph_error::{GraphFailure, GraphResult};
use reqwest::Body;
use std::io::{BufReader, Read};

pub struct BodyRead {
    buf: String,
    blocking_body: Option<reqwest::blocking::Body>,
    async_body: Option<Body>,
}

impl BodyRead {
    pub fn new(buf: String) -> BodyRead {
        BodyRead {
            buf,
            blocking_body: None,
            async_body: None,
        }
    }

    pub fn from_serialize<T: serde::Serialize>(body: &T) -> GraphResult<BodyRead> {
        let body = serde_json::to_string(body)?;
        Ok(BodyRead::new(body))
    }

    pub fn from_read<T: Read>(mut reader: T) -> GraphResult<BodyRead> {
        let mut buf = String::new();
        reader.read_to_string(&mut buf)?;
        Ok(BodyRead::new(buf))
    }

    pub async fn from_async_read<T: tokio::io::AsyncReadExt + Unpin>(
        mut reader: T,
    ) -> GraphResult<BodyRead> {
        let mut buf = String::new();
        reader.read_to_string(&mut buf).await?;
        Ok(BodyRead::new(buf))
    }
}

impl From<BodyRead> for Body {
    fn from(upload: BodyRead) -> Self {
        if let Some(body) = upload.async_body {
            return body;
        }

        reqwest::Body::from(upload.buf)
    }
}

impl From<BodyRead> for reqwest::blocking::Body {
    fn from(upload: BodyRead) -> Self {
        if let Some(body) = upload.blocking_body {
            return body;
        }

        reqwest::blocking::Body::from(upload.buf)
    }
}

impl From<String> for BodyRead {
    fn from(value: String) -> Self {
        BodyRead::new(value)
    }
}

impl<R: Read> TryFrom<BufReader<R>> for BodyRead {
    type Error = GraphFailure;

    fn try_from(reader: BufReader<R>) -> Result<Self, Self::Error> {
        BodyRead::from_read(reader)
    }
}

impl TryFrom<std::fs::File> for BodyRead {
    type Error = GraphFailure;

    fn try_from(value: std::fs::File) -> Result<Self, Self::Error> {
        BodyRead::from_read(value)
    }
}

#[async_trait]
impl AsyncTryFrom<tokio::fs::File> for BodyRead {
    type Error = GraphFailure;

    async fn async_try_from(file: tokio::fs::File) -> Result<Self, Self::Error> {
        BodyRead::from_async_read(file).await
    }
}

impl TryFrom<BytesMut> for BodyRead {
    type Error = GraphFailure;

    fn try_from(bytes_mut: BytesMut) -> Result<Self, Self::Error> {
        BodyRead::from_read(bytes_mut.reader())
    }
}

impl TryFrom<bytes::Bytes> for BodyRead {
    type Error = GraphFailure;

    fn try_from(bytes: bytes::Bytes) -> Result<Self, Self::Error> {
        BodyRead::from_read(bytes.reader())
    }
}

impl From<Body> for BodyRead {
    fn from(body: Body) -> Self {
        BodyRead {
            buf: Default::default(),
            blocking_body: None,
            async_body: Some(body),
        }
    }
}

impl From<reqwest::blocking::Body> for BodyRead {
    fn from(body: reqwest::blocking::Body) -> Self {
        BodyRead {
            buf: Default::default(),
            blocking_body: Some(body),
            async_body: None,
        }
    }
}

impl TryFrom<FileConfig> for BodyRead {
    type Error = GraphFailure;

    fn try_from(file_config: FileConfig) -> Result<Self, Self::Error> {
        BodyRead::try_from(&file_config)
    }
}

impl TryFrom<&FileConfig> for BodyRead {
    type Error = GraphFailure;

    fn try_from(file_config: &FileConfig) -> Result<Self, Self::Error> {
        let mut file = std::fs::File::open(file_config.path.as_path())?;
        let mut buf = String::new();
        file.read_to_string(&mut buf)?;
        Ok(BodyRead::new(buf))
    }
}

impl BodyExt for BodyRead {
    fn into_body(self) -> GraphResult<BodyRead> {
        Ok(self)
    }
}