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

use core::fmt::Debug;

use crate::attribute::AttributeGroup;
use crate::body::Body;
use crate::comment::Document;
use crate::data_type::DataType;
use crate::modifiers::Modifier;
use crate::modifiers::VisibilityModifier;
use crate::parameter::Parameter;
use crate::Generator;
use crate::Indentation;

#[derive(Debug)]
pub struct Method {
    pub documentation: Option<Document>,
    pub attributes: Vec<AttributeGroup>,
    pub name: String,
    pub parameters: Vec<Parameter>,
    pub return_type: Option<DataType>,
    pub body: Body,
    pub modifiers: Vec<Modifier>,
    pub visibility: Option<VisibilityModifier>,
}

impl Method {
    pub fn new<T: ToString>(name: T) -> Self {
        Self {
            name: name.to_string(),
            parameters: vec![],
            return_type: None,
            body: Body::default(),
            modifiers: vec![],
            attributes: vec![],
            documentation: None,
            visibility: None,
        }
    }

    pub fn document(mut self, documentation: Document) -> Self {
        self.documentation = Some(documentation);

        self
    }

    pub fn attributes(mut self, attributes: AttributeGroup) -> Self {
        self.attributes.push(attributes);

        self
    }

    pub fn public(mut self) -> Self {
        self.visibility = Some(VisibilityModifier::Public);

        self
    }

    pub fn protected(mut self) -> Self {
        self.visibility = Some(VisibilityModifier::Protected);

        self
    }

    pub fn private(mut self) -> Self {
        self.visibility = Some(VisibilityModifier::Private);

        self
    }

    pub fn visibility(mut self, visibility: VisibilityModifier) -> Self {
        self.visibility = Some(visibility);

        self
    }

    pub fn modifier(mut self, modifier: Modifier) -> Self {
        self.modifiers.push(modifier);

        self
    }

    pub fn parameter(mut self, parameter: Parameter) -> Self {
        self.parameters.push(parameter);

        self
    }

    pub fn returns(mut self, return_type: DataType) -> Self {
        self.return_type = Some(return_type);

        self
    }

    pub fn body<T: Into<Body>>(mut self, body: T) -> Self {
        self.body = body.into().with_semicolon_for_empty(true);

        self
    }
}

impl Generator for Method {
    fn generate(&self, indentation: Indentation, level: usize) -> String {
        let mut code = String::new();

        if let Some(document) = &self.documentation {
            code.push_str(&document.generate(indentation, level));
        }

        for attribute in &self.attributes {
            code.push_str(&attribute.generate(indentation, level));
        }

        code.push_str(&indentation.value(level));
        if let Some(visibility) = &self.visibility {
            code.push_str(format!("{} ", visibility.generate(indentation, level)).as_str());
        }

        if !self.modifiers.is_empty() {
            code.push_str(
                &self
                    .modifiers
                    .iter()
                    .map(|modifier| modifier.generate(indentation, level))
                    .collect::<Vec<String>>()
                    .join(" "),
            );

            code.push(' ');
        }

        code.push_str(format!("function {}", self.name).as_str());
        code.push_str(&self.parameters.generate(indentation, level));

        if let Some(return_type) = &self.return_type {
            code.push_str(format!(": {}", return_type.generate(indentation, level)).as_str());
        }

        code.push_str(&self.body.generate(indentation, level));

        code
    }
}

impl Generator for Vec<Method> {
    fn generate(&self, indentation: Indentation, level: usize) -> String {
        let mut code = String::new();
        if self.is_empty() {
            return code;
        }

        for method in self {
            code.push_str(method.generate(indentation, level).as_str());
            code.push('\n');
        }

        code
    }
}