looprs 0.1.11

Concise coding assistant REPL
Documentation 
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

use anyhow::Result;
use serde::{Deserialize, Serialize};
use std::fs;
use std::path::Path;

/// Per-provider configuration settings
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(default)]
#[derive(Default)]
pub struct ProviderSettings {
    /// Model name/ID (overrides MODEL env var if set)
    #[serde(skip_serializing_if = "Option::is_none")]
    pub model: Option<String>,

    /// Maximum tokens in response
    #[serde(skip_serializing_if = "Option::is_none")]
    pub max_tokens: Option<u32>,

    /// API timeout in seconds
    #[serde(skip_serializing_if = "Option::is_none")]
    pub timeout_secs: Option<u64>,

    /// Custom settings per provider
    #[serde(flatten)]
    pub extra: serde_json::Map<String, serde_json::Value>,
}

/// Provider configuration file schema
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(default)]
#[derive(Default)]
pub struct ProviderConfig {
    /// Active provider (overrides env var detection)
    #[serde(skip_serializing_if = "Option::is_none")]
    pub provider: Option<String>,

    /// Anthropic-specific settings
    #[serde(skip_serializing_if = "Option::is_none")]
    pub anthropic: Option<ProviderSettings>,

    /// OpenAI-specific settings
    #[serde(skip_serializing_if = "Option::is_none")]
    pub openai: Option<ProviderSettings>,

    /// Local/Ollama-specific settings
    #[serde(skip_serializing_if = "Option::is_none")]
    pub local: Option<ProviderSettings>,

    /// Default settings applied to all providers
    #[serde(skip_serializing_if = "Option::is_none")]
    pub defaults: Option<ProviderSettings>,
}

impl ProviderConfig {
    /// Load config from `.looprs/provider.json`
    pub fn load() -> Result<Self> {
        let config_path = Path::new(".looprs/provider.json");
        if !config_path.exists() {
            return Ok(Self::default());
        }

        let content = fs::read_to_string(config_path)?;
        let config: Self = serde_json::from_str(&content)?;
        Ok(config)
    }

    /// Save config to `.looprs/provider.json`
    pub fn save(&self) -> Result<()> {
        fs::create_dir_all(".looprs")?;
        let content = serde_json::to_string_pretty(self)?;
        fs::write(".looprs/provider.json", content)?;
        Ok(())
    }

    /// Get settings for a specific provider
    pub fn get_provider_settings(&self, provider_name: &str) -> Option<&ProviderSettings> {
        match provider_name {
            "anthropic" | "anthropic-sdk" | "claude-sdk" => self.anthropic.as_ref(),
            "openai" | "openai-sdk" => self.openai.as_ref(),
            "local" | "ollama" => self.local.as_ref(),
            _ => None,
        }
    }

    /// Merge provider-specific settings with defaults
    pub fn merged_settings(&self, provider_name: &str) -> ProviderSettings {
        let mut merged = self.defaults.clone().unwrap_or_default();

        if let Some(provider_settings) = self.get_provider_settings(provider_name) {
            if let Some(model) = &provider_settings.model {
                merged.model = Some(model.clone());
            }
            if let Some(max_tokens) = provider_settings.max_tokens {
                merged.max_tokens = Some(max_tokens);
            }
            if let Some(timeout_secs) = provider_settings.timeout_secs {
                merged.timeout_secs = Some(timeout_secs);
            }
            // Merge extra settings
            for (k, v) in &provider_settings.extra {
                merged.extra.insert(k.clone(), v.clone());
            }
        }

        merged
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_provider_config_merge() {
        let config = ProviderConfig {
            provider: Some("anthropic".to_string()),
            defaults: Some(ProviderSettings {
                max_tokens: Some(8192),
                ..Default::default()
            }),
            anthropic: Some(ProviderSettings {
                model: Some("claude-3-sonnet".to_string()),
                ..Default::default()
            }),
            ..Default::default()
        };

        let merged = config.merged_settings("anthropic");
        assert_eq!(merged.model, Some("claude-3-sonnet".to_string()));
        assert_eq!(merged.max_tokens, Some(8192));
    }

    #[test]
    fn test_provider_config_serialization() {
        let config = ProviderConfig {
            provider: Some("openai".to_string()),
            openai: Some(ProviderSettings {
                model: Some("gpt-4-turbo".to_string()),
                max_tokens: Some(4096),
                ..Default::default()
            }),
            ..Default::default()
        };

        let json = serde_json::to_string(&config).unwrap();
        let deserialized: ProviderConfig = serde_json::from_str(&json).unwrap();
        assert_eq!(deserialized.provider, Some("openai".to_string()));
    }
}