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

use std::str::FromStr;

use async_trait::async_trait;
use uuid::Uuid;

use crate::{
    backend::loaders::SDKLoaders,
    errors::sdk::SDKError,
    resources::{
        changes::change::{Change, ChangeOperation, ChangeResourceType},
        labels::label::Label,
        members::member::Member,
        projects::project::Project,
    },
};

use super::task::Task;

#[async_trait]
pub trait TaskRelations {
    async fn owner(&self, loaders: &SDKLoaders) -> Result<Member, SDKError>;
    async fn project(&self, loaders: &SDKLoaders) -> Result<Option<Project>, SDKError>;
    async fn lead(&self, loaders: &SDKLoaders) -> Result<Option<Member>, SDKError>;
    async fn parent(&self, loaders: &SDKLoaders) -> Result<Option<Task>, SDKError>;

    async fn assignees(&self, loaders: &SDKLoaders) -> Result<Vec<Member>, SDKError>;
    async fn labels(&self, loaders: &SDKLoaders) -> Result<Vec<Label>, SDKError>;
    async fn subtasks(&self, loaders: &SDKLoaders) -> Result<Vec<Task>, SDKError>;
    async fn changes(&self, loaders: &SDKLoaders) -> Result<Vec<Change>, SDKError>;
}

#[async_trait]
impl TaskRelations for Task {
    async fn owner(&self, loaders: &SDKLoaders) -> Result<Member, SDKError> {
        let data = loaders.member_loader.load_one(self.owner_id).await.unwrap().unwrap();

        Ok(data)
    }

    async fn project(&self, loaders: &SDKLoaders) -> Result<Option<Project>, SDKError> {
        let Some(project_id) = self.project_id else {
            return Ok(None);
        };

        let data = loaders.project_loader.load_one(project_id).await.unwrap().unwrap();

        Ok(Some(data))
    }

    async fn lead(&self, loaders: &SDKLoaders) -> Result<Option<Member>, SDKError> {
        let Some(lead_id) = self.lead_id else {
            return Ok(None);
        };

        let data = loaders.member_loader.load_one(lead_id).await.unwrap().unwrap();

        Ok(Some(data))
    }

    async fn parent(&self, loaders: &SDKLoaders) -> Result<Option<Task>, SDKError> {
        let Some(parent_id) = self.parent_id else {
            return Ok(None);
        };

        let data = loaders.task_loader.load_one(parent_id).await.unwrap().unwrap();

        Ok(Some(data))
    }

    async fn assignees(&self, loaders: &SDKLoaders) -> Result<Vec<Member>, SDKError> {
        let ids: Vec<Uuid> = sqlx::query!(
            r#"
            SELECT assignee_id FROM tasks_by_assignees
            WHERE task_id = $1
            "#,
            &self.id
        )
        .fetch_all(&*loaders.engine.db_pool)
        .await
        .unwrap()
        .into_iter()
        .map(|id| id.assignee_id)
        .collect();

        let members_map = loaders.member_loader.load_many(ids.clone()).await.unwrap();

        let members: &Vec<Member> = &ids
            .into_iter()
            .map(|id| members_map.get(&id).unwrap().clone())
            .collect();

        Ok(members.clone())
    }

    async fn labels(&self, loaders: &SDKLoaders) -> Result<Vec<Label>, SDKError> {
        let ids: Vec<Uuid> = sqlx::query!(
            r#"
            SELECT label_id FROM labels_by_tasks
            WHERE task_id = $1
            "#,
            &self.id
        )
        .fetch_all(&*loaders.engine.db_pool)
        .await
        .unwrap()
        .into_iter()
        .map(|id| id.label_id)
        .collect();

        let labels_map = loaders.label_loader.load_many(ids.clone()).await.unwrap();

        let labels: &Vec<Label> = &ids.into_iter().map(|id| labels_map.get(&id).unwrap().clone()).collect();

        Ok(labels.clone())
    }

    async fn subtasks(&self, loaders: &SDKLoaders) -> Result<Vec<Task>, SDKError> {
        let ids: Vec<Uuid> = sqlx::query!(
            r#"
            SELECT id FROM tasks
            WHERE parent_id = $1
            "#,
            &self.id
        )
        .fetch_all(&*loaders.engine.db_pool)
        .await
        .unwrap()
        .into_iter()
        .map(|t| t.id)
        .collect();

        Ok(loaders
            .task_loader
            .load_many(ids)
            .await
            .unwrap()
            .values()
            .map(|x| x.to_owned())
            .collect())
    }

    async fn changes(&self, loaders: &SDKLoaders) -> Result<Vec<Change>, SDKError> {
        let changes = sqlx::query!(
            r#"
        SELECT * FROM changes
        WHERE resource_id = $1"#,
            &self.id
        )
        .fetch_all(&*loaders.engine.db_pool)
        .await
        .unwrap();

        Ok(changes
            .iter()
            .map(|change| Change {
                id: change.id,
                created_at: change.created_at,
                updated_at: change.updated_at,
                owner_id: change.owner_id,
                resource_id: change.resource_id,
                operation: ChangeOperation::from_str(change.operation.as_str()).unwrap(),
                resource_type: ChangeResourceType::from_str(change.resource_type.as_str()).unwrap(),
                diff_json: change.diff_json.clone(),
            })
            .collect())
    }
}