package httpapi

import (
	"context"
	"errors"
	"knowledge-governance/internal/dobotaiops"
	"knowledge-governance/internal/qaopsfields"
	"knowledge-governance/internal/qaopsmirror"
	"knowledge-governance/internal/qaopsquality"
	"net/http"
)

type masterFieldWriter interface {
	PatchMasterFields(context.Context, string, qaopsmirror.MasterFieldPatch, string) (qaopsmirror.MasterFieldReceipt, error)
}

func qaMasterFieldOptions(w http.ResponseWriter, r *http.Request, c Config) {
	if !authorizeQAOps(w, r) {
		return
	}
	if r.URL.RawQuery != "" {
		qaOpsError(w, dobotaiops.ErrInvalidQuery)
		return
	}
	w.Header().Set("Cache-Control", "no-store")
	writeJSON(w, 200, map[string]any{"data": map[string]any{"version": "qa-master-options-v1", "fields": qaopsfields.EditableOptions()}})
}
func qaMasterFieldPatch(w http.ResponseWriter, r *http.Request, c Config) {
	if !authorizeQAOps(w, r) || !authorizeQAIntent(w, r, "qa-master-fields") {
		return
	}
	var q qaopsmirror.MasterFieldPatch
	if decodeQualityJSON(w, r, &q, "input_hash", "input_epoch", "base_revision", "base_review_revision", "nonce", "fields") != nil {
		writeJSON(w, 400, map[string]string{"error": "字段选项或编辑参数无效"})
		return
	}
	writer, ok := c.QAOps.(masterFieldWriter)
	if !ok || c.QAOpsTenantKey == "" {
		qaOpsError(w, dobotaiops.ErrUnavailable)
		return
	}
	identity, _ := sessionFrom(r.Context())
	result, err := writer.PatchMasterFields(r.Context(), r.PathValue("id"), q, identity.Username)
	if err != nil {
		switch {
		case errors.Is(err, qaopsquality.ErrDownvoted):
			writeJSON(w, 409, map[string]string{"error": "问题已点踩，是否正确固定为否；未保存冲突选择，请重新读取"})
		case errors.Is(err, qaopsquality.ErrConflict):
			writeJSON(w, 409, map[string]string{"error": "字段或问答版本已变化，请重新读取后修改；未覆盖其他人的内容"})
		case errors.Is(err, dobotaiops.ErrInvalidQuery):
			writeJSON(w, 400, map[string]string{"error": "字段选项无效，未保存；请选择主表允许的内容"})
		default:
			qaOpsError(w, err)
		}
		return
	}
	writeJSON(w, 200, map[string]any{"data": result})
}