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Peisong Xiao
2025-10-14 02:25:04 -04:00
parent 83c1424a37
commit fd46be63a0
3 changed files with 0 additions and 144 deletions
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17
backend/src/#repo.go#
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# Directory: internal/db/db.go
# Directory: internal/db/repo.go
# Directory: internal/glue/conversations.go
# Directory: internal/glue/branches.go
# Directory: internal/glue/completion.go
# Directory: internal/glue/linearize.go
# Directory: internal/http/router.go
# Directory: internal/http/middleware.go
# Directory: migrations/0001_init.sql

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backend/src/.#repo.go
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peisongxiao@PeisongXiao.4764:1760154185

126
backend/src/repo.go
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# Directory: internal/db/db.go
# Directory: internal/db/repo.go
# Directory: internal/glue/conversations.go
# Directory: internal/glue/branches.go
# Directory: internal/glue/completion.go
# Directory: internal/glue/linearize.go
# Directory: internal/http/router.go
# Directory: internal/http/middleware.go
package http
import "net/http"
func withCommon(next http.Handler) http.Handler {
return http.TimeoutHandler(next, 60_000_000_000, "timeout") // 60s
}
# Directory: internal/http/handlers.go
package http
import (
"encoding/json"
"net/http"
"strconv"
"mind/internal/glue"
)
// POST /conversations {"title":"demo","owner_id":1}
// GET /conversations?owner_id=1
func (s *server) conversations(w http.ResponseWriter, r *http.Request) {
switch r.Method {
case http.MethodPost:
var in struct { Title string `json:"title"`; OwnerID int64 `json:"owner_id"` }
if err := json.NewDecoder(r.Body).Decode(&in); err != nil { writeJSON(w, 400, map[string]string{"error":"bad json"}); return }
id, err := s.glue.CreateConversation(r.Context(), in.OwnerID, in.Title)
if err != nil { writeJSON(w, 500, map[string]string{"error": err.Error()}); return }
writeJSON(w, 200, map[string]any{"id": id})
case http.MethodGet:
ownerStr := r.URL.Query().Get("owner_id")
owner, _ := strconv.ParseInt(ownerStr, 10, 64)
out, err := s.glue.ListConversations(r.Context(), owner)
if err != nil { writeJSON(w, 500, map[string]string{"error": err.Error()}); return }
writeJSON(w, 200, out)
default:
w.WriteHeader(405)
}
}
// POST /branches {conversation_id, name, head_node_id}
func (s *server) branches(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodPost { w.WriteHeader(405); return }
var in glue.ForkReq
if err := json.NewDecoder(r.Body).Decode(&in); err != nil { writeJSON(w, 400, map[string]string{"error":"bad json"}); return }
b, err := s.glue.ForkBranch(r.Context(), in)
if err != nil { writeJSON(w, 500, map[string]string{"error": err.Error()}); return }
writeJSON(w, 200, b)
}
// POST /completion {conversation_id, branch, prompt}
func (s *server) completion(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodPost { w.WriteHeader(405); return }
var in glue.CompletionReq
if err := json.NewDecoder(r.Body).Decode(&in); err != nil { writeJSON(w, 400, map[string]string{"error":"bad json"}); return }
resp, err := s.glue.AppendCompletion(r.Context(), in)
if err != nil { writeJSON(w, 500, map[string]string{"error": err.Error()}); return }
writeJSON(w, 200, resp)
}
// GET /linearize?conversation_id=..&branch=main
func (s *server) linearize(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet { w.WriteHeader(405); return }
convID, _ := strconv.ParseInt(r.URL.Query().Get("conversation_id"), 10, 64)
branch := r.URL.Query().Get("branch")
out, err := s.glue.LinearizeByBranch(r.Context(), convID, branch)
if err != nil { writeJSON(w, 500, map[string]string{"error": err.Error()}); return }
writeJSON(w, 200, out)
}
# Directory: migrations/0001_init.sql
-- users (minimal for v0)
CREATE TABLE IF NOT EXISTS users (
id INTEGER PRIMARY KEY AUTOINCREMENT,
email VARCHAR(255) UNIQUE,
pass_bcrypt BLOB,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);
-- conversations
CREATE TABLE IF NOT EXISTS conversations (
id INTEGER PRIMARY KEY AUTOINCREMENT,
owner_id INTEGER NOT NULL,
title VARCHAR(255),
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);
-- nodes
CREATE TABLE IF NOT EXISTS nodes (
id INTEGER PRIMARY KEY AUTOINCREMENT,
conversation_id INTEGER NOT NULL,
author_kind ENUM('user','assistant') NOT NULL,
content TEXT NOT NULL,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);
-- edges (DAG)
CREATE TABLE IF NOT EXISTS edges (
parent_id INTEGER NOT NULL,
child_id INTEGER NOT NULL,
PRIMARY KEY(parent_id, child_id)
);
-- branches (named pointers)
CREATE TABLE IF NOT EXISTS branches (
id INTEGER PRIMARY KEY AUTOINCREMENT,
conversation_id INTEGER NOT NULL,
name VARCHAR(128) NOT NULL,
head_node_id INTEGER NOT NULL,
UNIQUE (conversation_id, name)
);