feat(backend): port route-planning backend to Go

Add a Go implementation mirroring the Python pipeline (loader, graph,
pathfinder, arbitrage, market, route, manager) under internal/core, with
ESI client/API integration and setup endpoints. Reuses backend/src as
the working directory so existing data/cache paths keep working.

1 files changed, 85 insertions, 0 deletions

diff --git a/backend-go/patch_all.py b/backend-go/patch_all.py
new file mode 100644
index 0000000..7d541a1
--- /dev/null
+++ b/backend-go/patch_all.py
@@ -0,0 +1,85 @@
+import re
+
+# 1. Update manager.go error handling and CreateRoute
+manager_path = '/home/kboz/eve_haul/backend-go/internal/core/manager.go'
+with open(manager_path, 'r') as f:
+    text = f.read()
+
+# Fix Wallet Error
+text = text.replace(
+    'm.Log = append([]string{"Wallet scope error: ensure token has wallet read permissions."}, m.Log...)',
+    'm.Log = append([]string{fmt.Sprintf("Wallet Error: %v", err)}, m.Log...)'
+)
+
+# Fix ShortlistConfig creation (primary pass)
+shortlist1 = '''shortlist := ShortlistConfig{
+CandidateLimit:   PrimaryCandidateLimit,
+TypeLimit:        PrimaryTypeLimit,
+StationPairLimit: PrimaryStationPairLimit,
+}'''
+shortlist1_new = '''shortlist := ShortlistConfig{
+CandidateLimit:   PrimaryCandidateLimit,
+TypeLimit:        PrimaryTypeLimit,
+StationPairLimit: PrimaryStationPairLimit,
+RankMode:         "and",
+}'''
+text = text.replace(shortlist1, shortlist1_new)
+
+# Fix ShortlistConfig creation (fallback pass)
+shortlist2 = '''shortlist = ShortlistConfig{
+CandidateLimit:   FallbackCandidateLimit,
+TypeLimit:        FallbackTypeLimit,
+StationPairLimit: FallbackStationPairLimit,
+}'''
+shortlist2_new = '''shortlist = ShortlistConfig{
+CandidateLimit:   FallbackCandidateLimit,
+TypeLimit:        FallbackTypeLimit,
+StationPairLimit: FallbackStationPairLimit,
+RankMode:         "and",
+}'''
+text = text.replace(shortlist2, shortlist2_new)
+
+with open(manager_path, 'w') as f:
+    f.write(text)
+
+
+# 2. Update route.go Ship Struct with correct JSON tags
+route_path = '/home/kboz/eve_haul/backend-go/internal/core/route.go'
+with open(route_path, 'r') as f:
+    r_text = f.read()
+
+old_struct = '''type Ship struct {
+TaxRate          float64
+ProfitThreshold  float64
+MaxCapital       float64
+SnipeThreshold   float64
+Location        int
+Cargo           float64
+MaxWarpSpeed     float64
+MaxSubwarpSpeed  float64
+GankersAreas     map[string]float64
+PlayerCost       float64
+RiskCost         float64
+ShipCost         float64
+}'''
+
+new_struct = '''type Ship struct {
+TaxRate          float64            `json:"tax_rate"`
+ProfitThreshold  float64            `json:"profit_threshold"`
+MaxCapital       float64            `json:"max_capital"`
+SnipeThreshold   float64            `json:"snipe_profit_threshold"`
+Location         int                `json:"location"`
+Cargo            float64            `json:"cargo"`
+MaxWarpSpeed     float64            `json:"max_warp_speed"`
+MaxSubwarpSpeed  float64            `json:"max_subwarp_speed"`
+GankersAreas     map[string]float64 `json:"gankers_areas"`
+PlayerCost       float64            `json:"player_cost"`
+RiskCost         float64            `json:"risk_cost"`
+ShipCost         float64            `json:"ship_cost"`
+}'''
+
+r_text = r_text.replace(old_struct, new_struct)
+with open(route_path, 'w') as f:
+    f.write(r_text)
+
+print("Patch completed!")