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

use chrono::NaiveDateTime;
use serde::{Deserialize, de::Error as SerdeError};


fn deserialize_naive_date<'de, D>(
    deserializer: D,
) -> Result<NaiveDateTime, D::Error>
where
    D: serde::Deserializer<'de>,
{
    let string: &str = serde::Deserialize::deserialize(deserializer)?;
    let format = "%Y-%m-%d %H:%M:%S.%3f";
    NaiveDateTime::parse_from_str(string, format)
        .map_err(SerdeError::custom)
}

#[derive(Clone, Debug, Deserialize)]
pub struct ZBValidation {
    pub address: String,
    pub status: String,
    pub sub_status: String,
    pub free_email: bool,
    pub did_you_mean: Option<String>,
    pub account: Option<String>,
    pub domain: Option<String>,
    pub domain_age_days: Option<String>,
    pub smtp_provider: Option<String>,
    pub mx_record: Option<String>,
    pub mx_found: Option<String>,
    pub firstname: Option<String>,
    pub lastname: Option<String>,
    pub gender: Option<String>,
    pub country: Option<String>,
    pub region: Option<String>,
    pub city: Option<String>,
    pub zipcode: Option<String>,

    #[serde(deserialize_with="deserialize_naive_date")]
    pub processed_at: NaiveDateTime,
}


#[derive(Clone, Debug, Deserialize)]
pub struct ZBBatchError {
    pub error: String,
    pub email_address: String,
}


#[derive(Clone, Debug, Deserialize)]
pub struct ZBBatchValidation {
    pub email_batch: Vec<ZBValidation>,
    pub errors: Vec<ZBBatchError>,
}

#[cfg(test)]
mod test {
    use serde_json::{Result as SerdeResult, from_str};

    use super::*;
    use crate::utility::mock_constants::VALIDATION_RESPONSE_VALID;
    use crate::utility::mock_constants::VALIDATION_RESPONSE_INVALID;
    use crate::utility::mock_constants::VALIDATION_RESPONSE_NULL_FIELDS;
    use crate::utility::mock_constants::BATCH_VALIDATION_WITH_ERROR;
    use crate::utility::mock_constants::BATCH_VALIDATION_ERROR_ONLY;
    use crate::utility::mock_constants::BATCH_VALIDATION_NO_ERROR;

    #[test]
    fn test_validation_invalid_json() {
        let validation_res: SerdeResult<ZBValidation> = from_str("");
        assert!(validation_res.is_err());
    }

    #[test]
    fn test_validation_missing_expected_fields() {
        let validation_res: SerdeResult<ZBValidation> = from_str(VALIDATION_RESPONSE_NULL_FIELDS);
        assert!(validation_res.is_ok());

        let validation = validation_res.unwrap();
        assert_eq!(validation.did_you_mean, None);
        assert_eq!(validation.domain_age_days, Some("".to_string()));
    }

    #[test]
    fn test_validation_invalid_email_status() {
        let validation_res: SerdeResult<ZBValidation> = from_str(VALIDATION_RESPONSE_INVALID);
        assert!(validation_res.is_ok());

        let validation = validation_res.unwrap();
        assert_eq!(validation.status, "invalid".to_string());
        assert_eq!(validation.sub_status, "mailbox_not_found".to_string());
        assert_eq!(validation.did_you_mean, None);
        assert_eq!(validation.smtp_provider, Some("example".to_string()));
        assert_eq!(validation.free_email, false);

        let expected_date = NaiveDateTime::new(
            chrono::NaiveDate::from_ymd_opt(2023, 3, 23).unwrap(),
            chrono::NaiveTime::from_hms_milli_opt(12, 30, 28, 3).unwrap(),
        );
        assert_eq!(validation.processed_at, expected_date);
    }

    #[test]
    fn test_validation_valid_email_status() {
        let validation_res: SerdeResult<ZBValidation> = from_str(VALIDATION_RESPONSE_VALID);
        assert!(validation_res.is_ok());

        let validation = validation_res.unwrap();
        assert_eq!(validation.status, "valid".to_string());
        assert_eq!(validation.sub_status, "".to_string());
        assert_eq!(validation.did_you_mean, None);
        assert_eq!(validation.smtp_provider, Some("example".to_string()));
        assert_eq!(validation.free_email, false);

        let expected_date = NaiveDateTime::new(
            chrono::NaiveDate::from_ymd_opt(2023, 3, 23).unwrap(),
            chrono::NaiveTime::from_hms_milli_opt(13, 30, 28, 105).unwrap(),
        );
        assert_eq!(validation.processed_at, expected_date);
    }

    #[test]
    fn test_batch_error_only_content() {
        let batch: SerdeResult<ZBBatchValidation> = from_str(BATCH_VALIDATION_ERROR_ONLY);
        assert!(batch.is_ok());

        let batch_object = batch.unwrap();
        assert_eq!(batch_object.email_batch.len(), 0);
        assert_eq!(batch_object.errors.len(), 1);
    }

    #[test]
    fn test_batch_validation_and_error_content() {
        let batch: SerdeResult<ZBBatchValidation> = from_str(BATCH_VALIDATION_WITH_ERROR);
        assert!(batch.is_ok());

        let batch_object = batch.unwrap();
        assert_eq!(batch_object.email_batch.len(), 1);
        assert_eq!(batch_object.errors.len(), 1);
    }

    #[test]
    fn test_batch_validation_only_content() {
        let batch: SerdeResult<ZBBatchValidation> = from_str(BATCH_VALIDATION_NO_ERROR);
        assert!(batch.is_ok());

        let batch_object = batch.unwrap();
        assert_eq!(batch_object.email_batch.len(), 1);
        assert_eq!(batch_object.errors.len(), 0);
    }

}