81 lines
2.1 KiB
Go
81 lines
2.1 KiB
Go
package handlers
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import (
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"database/sql"
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"encoding/json"
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"fmt"
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"net/http"
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"github.com/HoHD/PR-Helper/services"
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"github.com/gin-gonic/gin"
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)
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type GenerateHandler struct {
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db *sql.DB
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}
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func NewGenerateHandler(db *sql.DB) *GenerateHandler {
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return &GenerateHandler{db: db}
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}
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// Generate handles POST /api/repos/:id/generate — SSE streaming PR description generation.
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func (h *GenerateHandler) Generate(c *gin.Context) {
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id := c.Param("id")
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// Get repo info
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var localPath string
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err := h.db.QueryRow(`SELECT local_path FROM repositories WHERE id = ?`, id).Scan(&localPath)
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if err == sql.ErrNoRows {
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c.JSON(http.StatusNotFound, gin.H{"error": "repository not found"})
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return
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}
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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// Parse request
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var req struct {
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Base string `json:"base" binding:"required"`
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Head string `json:"head" binding:"required"`
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}
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "base and head are required"})
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return
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}
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// Set SSE headers
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c.Header("Content-Type", "text/event-stream")
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c.Header("Cache-Control", "no-cache")
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c.Header("Connection", "keep-alive")
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c.Header("X-Accel-Buffering", "no")
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c.Status(http.StatusOK)
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flusher, ok := c.Writer.(http.Flusher)
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if !ok {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "streaming not supported"})
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return
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}
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sendEvent := func(event string, data interface{}) {
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jsonData, _ := json.Marshal(data)
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fmt.Fprintf(c.Writer, "event: %s\ndata: %s\n\n", event, jsonData)
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flusher.Flush()
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}
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// Update last_used
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h.db.Exec(`UPDATE repositories SET last_used = datetime('now') WHERE id = ?`, id)
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// Generate PR description
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pr, err := services.GeneratePR(h.db, localPath, req.Base, req.Head, sendEvent)
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if err != nil {
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sendEvent("error", map[string]interface{}{"message": err.Error()})
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return
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}
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// Save analysis to DB
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resultJSON, _ := json.Marshal(pr)
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h.db.Exec(`INSERT INTO analyses (repo_id, type, base_ref, head_ref, result) VALUES (?, 'pr_description', ?, ?, ?)`,
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id, req.Base, req.Head, string(resultJSON))
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}
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