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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229

//! File header definition
use std::fmt::Display;
use std::fs::File;

use crate::headers::NitfSegmentHeader;
use crate::types::{NitfField, Security, ExtendedSubheader};

/// Metadata for Nitf File Header
#[derive(Default, Clone, Debug, Eq, PartialEq)]
pub struct NitfHeader {
    /// File Profile Name
    pub fhdr: NitfField<String>,
    /// File Version
    pub fver: NitfField<String>,
    /// Complexity Level
    pub clevel: NitfField<u8>,
    /// Standard Type
    pub stype: NitfField<String>,
    /// Originating Station ID
    pub ostaid: NitfField<String>,
    /// File Date and Time
    pub fdt: NitfField<String>,
    /// File Title
    pub ftitle: NitfField<String>,
    /// Security information
    pub security: Security,
    /// File Copy Number
    pub fscop: NitfField<u32>,
    /// File Number of Copies
    pub fscpys: NitfField<u32>,
    /// Encryption
    pub encryp: NitfField<String>,
    /// File Background Color
    pub fbkgc: Vec<NitfField<String>>, // TODO: Fix the parsing of this
    /// Originator's Name
    pub oname: NitfField<String>,
    /// Originator's Phone Number
    pub ophone: NitfField<String>,
    /// File Length
    pub fl: NitfField<u64>,
    /// NITF File Header Length
    pub hl: NitfField<u32>,
    /// Number of Image Segments
    pub numi: NitfField<u16>,
    /// Image Segments
    pub imheaders: Vec<SubHeader>,
    /// Number of Graphics Segments
    pub nums: NitfField<u16>,
    /// Graphic Segments
    pub graphheaders: Vec<SubHeader>,
    /// Reserved for future use
    pub numx: NitfField<u16>,
    /// Number of Text Segments
    pub numt: NitfField<u16>,
    /// Text Segments
    pub textheaders: Vec<SubHeader>,
    /// Number of Data Extension Segments
    pub numdes: NitfField<u16>,
    /// Data Extenstion Segments
    pub dextheaders: Vec<SubHeader>,
    /// Number of Reserved Extension Segments
    pub numres: NitfField<u16>,
    /// Reserved Extension Segments
    pub resheaders: Vec<SubHeader>,
    /// User Defined Header Data Length
    pub udhdl: NitfField<u32>,
    /// User Defined Header Overflow
    pub udhofl: NitfField<u16>,
    /// User Defined Header Data
    pub udhd: ExtendedSubheader, // TODO: Figure out what to do with this
    /// Extended Header Data Length
    pub xhdl: NitfField<u32>,
    /// Extended Header Data Overflow
    pub xhdlofl: NitfField<u16>,
    /// Extended Header Data
    pub xhd: ExtendedSubheader,
}
impl Display for NitfHeader {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        let mut out_str = String::default();
        out_str += format!("FHDR: {}, ", self.fhdr).as_ref();
        out_str += format!("FVER: {}, ", self.fver).as_ref();
        out_str += format!("CLEVEL: {}, ", self.clevel).as_ref();
        out_str += format!("STYPE: {}, ", self.stype).as_ref();
        out_str += format!("OSTAID: {}, ", self.ostaid).as_ref();
        out_str += format!("FDT: {}, ", self.fdt).as_ref();
        out_str += format!("FTITLE: {}, ", self.ftitle).as_ref();
        out_str += format!("SECURITY: [{}], ", self.security).as_ref();
        out_str += format!("FSCOP: {}, ", self.fscop).as_ref();
        out_str += format!("FSCPYS: {}, ", self.fscpys).as_ref();
        out_str += format!("ENCRYP: {}, ", self.encryp).as_ref();
        out_str += format!(
            "FBKGC: [R: {}, G: {}, B: {}], ",
            self.fbkgc[0], self.fbkgc[1], self.fbkgc[2],
        )
        .as_ref();
        out_str += format!("ONAME: {}, ", self.oname).as_ref();
        out_str += format!("OPHONE: {}, ", self.ophone).as_ref();
        out_str += format!("FL: {}, ", self.fl).as_ref();
        out_str += format!("HL: {}, ", self.hl).as_ref();
        out_str += format!("NUMI: {}, ", self.numi).as_ref();
        for seg in &self.imheaders {
            out_str += format!("[IMHEADER: {}], ", seg).as_ref()
        }
        out_str += format!("NUMS: {}, ", self.nums).as_ref();
        for seg in &self.graphheaders {
            out_str += format!("[GRAPHHEADERS: {}], ", seg).as_ref()
        }
        out_str += format!("NUMX: {}, ", self.numx).as_ref();
        out_str += format!("NUMT: {}, ", self.numt).as_ref();
        for seg in &self.textheaders {
            out_str += format!("[TEXTHEADER: {}], ", seg).as_ref()
        }
        out_str += format!("NUMDES: {}, ", self.numdes).as_ref();
        for seg in &self.dextheaders {
            out_str += format!("[DEXTHEADER: {}], ", seg).as_ref()
        }
        out_str += format!("NUMRES: {}, ", self.numres).as_ref();
        for seg in &self.resheaders {
            out_str += format!("[RESHEADER: {}], ", seg).as_ref()
        }
        out_str += format!("UDHDL: {}, ", self.udhdl).as_ref();
        out_str += format!("UDHOFL: {}, ", self.udhofl).as_ref();
        out_str += format!("UDHD: {}, ", self.udhd).as_ref();
        out_str += format!("XHDL: {}, ", self.xhdl).as_ref();
        out_str += format!("XHDLOFL: {}, ", self.xhdlofl).as_ref();
        out_str += format!("XHD: {}", self.xhd).as_ref();
        write!(f, "[NitfHeader: {out_str}]")
    }
}

impl NitfSegmentHeader for NitfHeader {
    fn read(&mut self, reader: &mut File) {
        self.fhdr.read(reader, 4u8);
        self.fver.read(reader, 5u8);
        self.clevel.read(reader, 2u8);
        self.stype.read(reader, 4u8);
        self.ostaid.read(reader, 10u8);
        self.fdt.read(reader, 14u8);
        self.ftitle.read(reader, 80u8);
        self.security.read(reader);
        self.fscop.read(reader, 5u8);
        self.fscpys.read(reader, 5u8);
        self.encryp.read(reader, 1u8);
        for _ in 0..3 {
            let mut color: NitfField<String> = NitfField::default();
            color.read(reader, 1u8);
            self.fbkgc.push(color);
        }

        self.oname.read(reader, 24u8);
        self.ophone.read(reader, 18u8);
        self.fl.read(reader, 12u8);
        self.hl.read(reader, 6u8);
        self.numi.read(reader, 3u8);
        for _ in 0..self.numi.val {
            let mut subheader = SubHeader::default();
            subheader.read(reader, 6, 10);
            self.imheaders.push(subheader);
        }

        self.nums.read(reader, 3u8);
        for _ in 0..self.nums.val {
            let mut subheader = SubHeader::default();
            subheader.read(reader, 4, 6);
            self.graphheaders.push(subheader);
        }

        self.numx.read(reader, 3u8);
        self.numt.read(reader, 3u8);
        for _ in 0..self.numt.val {
            let mut subheader = SubHeader::default();
            subheader.read(reader, 4, 5);
            self.textheaders.push(subheader);
        }

        self.numdes.read(reader, 3u8);
        for _ in 0..self.numdes.val {
            let mut subheader = SubHeader::default();
            subheader.read(reader, 4, 9);
            self.dextheaders.push(subheader);
        }

        self.numres.read(reader, 3u8);
        for _ in 0..self.numres.val {
            let mut subheader = SubHeader::default();
            subheader.read(reader, 4, 7);
            self.resheaders.push(subheader);
        }

        self.udhdl.read(reader, 5u8);
        if self.udhdl.val != 0 {
            self.udhofl.read(reader, 3u8);
            self.udhd.read(reader, (self.udhdl.val - 3) as usize);
        }

        self.xhdl.read(reader, 5u8);
        if self.xhdl.val != 0 {
            self.xhdlofl.read(reader, 3u8);
            self.xhd.read(reader, (self.xhdl.val - 3) as usize);
        }
    }
}

/// Subheader element type
///
/// Used within the NITF header to denote the subheader segments contained in the file
#[derive(Default, Clone, Debug, Eq, PartialEq)]
pub struct SubHeader {
    /// Bytes of header description
    pub subheader_size: NitfField<u32>,
    /// Bytes of the data
    pub item_size: NitfField<u64>,
}
impl SubHeader {
    pub fn read(&mut self, reader: &mut File, sh_size: u64, item_size: u64) {
        self.subheader_size.read(reader, sh_size);
        self.item_size.read(reader, item_size);
    }
}
impl Display for SubHeader {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(
            f,
            "[subheader_size: {}, item_size: {}]",
            &self.subheader_size.string, &self.item_size.string
        )
    }
}