package logic

import (
	"context"
	"strconv"

	"bj_power_mes/ent"
	"bj_power_mes/ent/permission"
	"bj_power_mes/ent/processflow"
	"bj_power_mes/ent/processstep"
	"bj_power_mes/ent/role"
	"bj_power_mes/ent/station"
	"bj_power_mes/ent/user"

	"golang.org/x/crypto/bcrypt"
)

// Seed 初始化：超级管理员、默认角色、默认菜单权限、12 道工序与工位派工
func (s *Service) Seed(ctx context.Context) error {
	// 1. 默认角色（已存在则合并权限码，保证新按钮权限能落到已有角色上）
	roles := []struct{ name, code string }{
		{"超级管理员", "SUPER_ADMIN"},
		{"生产操作员", "OPERATOR"},
		{"质检员", "INSPECTOR"},
	}
	for _, r := range roles {
		codes := []string{"*"}
		if r.code == "OPERATOR" {
			codes = []string{
				"produce.workorder", "produce.dailyplan", "produce.bom", "produce.material", "produce.scan",
				"produce.trace", "produce.torque", "produce.plc", "produce.product",
				"produce.processflow", "produce.station", "produce.performance",
				// 按钮级权限（块2）
				"produce.workorder:add", "produce.workorder:edit", "produce.workorder:delete",
				"produce.workorder:dailyplan", "produce.bom:edit", "produce.material:generate",
				"produce.plc:send", "produce.product:add", "produce.product:edit", "produce.product:delete",
				"produce.processflow:add", "produce.processflow:edit", "produce.processflow:delete",
				"produce.processflow:upload", "produce.station:edit",
			}
		} else if r.code == "INSPECTOR" {
			codes = []string{"produce.trace", "produce.torque", "produce.performance", "sys.eventlog",
				"sys.inspect", "sys.inspect:checkin", "sys.inspect:point", "sys.inspect:process",
				"sys.inspect:done", "sys.inspect:alarm", "sys.inspect:view"}
		}
		exist, err := s.ctx.EntClient.Role.Query().Where(role.Code(r.code)).First(ctx)
		if err != nil {
			_ = s.ctx.EntClient.Role.Create().SetName(r.name).SetCode(r.code).SetPermissionCodes(codes).Exec(ctx)
		} else {
			_ = s.ctx.EntClient.Role.UpdateOneID(exist.ID).SetPermissionCodes(mergeCodes(exist.PermissionCodes, codes)).Exec(ctx)
		}
	}

	// 2. 超级管理员账号 admin / 123456（对已存在的旧行做对齐，避免残留禁用状态）
	hash, _ := bcrypt.GenerateFromPassword([]byte("123456"), bcrypt.DefaultCost)
	adminRole, _ := s.ctx.EntClient.Role.Query().Where(role.Code("SUPER_ADMIN")).First(ctx)
	roleId := 0
	if adminRole != nil {
		roleId = adminRole.ID
	}
	if s.ctx.EntClient.User.Query().Where(user.Username("admin")).ExistX(ctx) {
		_ = s.ctx.EntClient.User.Update().
			Where(user.Username("admin")).
			SetPassword(string(hash)).SetStatus("ENABLED").SetRoleId(roleId).Exec(ctx)
	} else {
		_ = s.ctx.EntClient.User.Create().
			SetUsername("admin").SetPassword(string(hash)).SetName("系统管理员").
			SetRoleId(roleId).SetStatus("ENABLED").Exec(ctx)
	}

	// 3. 默认菜单权限
	menus := []struct{ code, name, typ, path string }{
		{"produce.workorder", "工单管理", "MENU", "/work-order"},
		{"produce.dailyplan", "日排产", "MENU", "/daily-plan"},
		{"produce.bom", "物料清单", "MENU", "/bom"},
		{"produce.material", "备料单", "MENU", "/material-request"},
		{"produce.plc", "工位组合下发", "MENU", "/plc-send"},
		{"produce.torque", "拧紧查询", "MENU", "/torque"},
		{"produce.processflow", "工艺流程", "MENU", "/process-flow"},
		{"produce.station", "关联工位", "MENU", "/station"},
		{"produce.performance", "绩效报表", "MENU", "/performance"},
		{"produce.scan", "手动报工", "MENU", "/scan"},
		{"produce.trace", "工件追溯", "MENU", "/trace"},
		{"produce.product", "产品类型", "MENU", "/product-type"},
		{"sys.inspect", "巡检终端", "MENU", "/inspect"},
		{"sys.eventlog", "操作日志", "MENU", "/event-log"},
		{"sys.rbac", "角色权限管理", "MENU", "/rbac"},
	}
	for _, m := range menus {
		if s.ctx.EntClient.Permission.Query().Where(permission.Code(m.code)).ExistX(ctx) {
			continue
		}
		_ = s.ctx.EntClient.Permission.Create().
			SetCode(m.code).SetName(m.name).SetType(m.typ).SetPath(m.path).Exec(ctx)
	}

	// 3.1 按钮级权限（块2）：前端按钮 + 后端接口 双重校验
	buttons := []struct{ code, name, typ, path string }{
		{"produce.workorder:add", "工单-新增", "BUTTON", ""},
		{"produce.workorder:edit", "工单-编辑", "BUTTON", ""},
		{"produce.workorder:delete", "工单-删除", "BUTTON", ""},
		{"produce.workorder:dailyplan", "工单-日排产", "BUTTON", ""},
		{"produce.bom:edit", "物料清单-维护", "BUTTON", ""},
		{"produce.material:generate", "备料单-生成", "BUTTON", ""},
		{"produce.plc:send", "工位组合-下发", "BUTTON", ""},
		{"produce.product:add", "产品类型-新增", "BUTTON", ""},
		{"produce.product:edit", "产品类型-编辑", "BUTTON", ""},
		{"produce.product:delete", "产品类型-删除", "BUTTON", ""},
		{"produce.processflow:add", "工艺流程-新增", "BUTTON", ""},
		{"produce.processflow:edit", "工艺流程-编辑", "BUTTON", ""},
		{"produce.processflow:delete", "工艺流程-删除", "BUTTON", ""},
		{"produce.processflow:upload", "工艺流程-上传图纸", "BUTTON", ""},
		{"produce.station:edit", "工位-绑定", "BUTTON", ""},
		{"sys.rbac:user", "权限-用户", "BUTTON", ""},
		{"sys.rbac:role", "权限-角色", "BUTTON", ""},
		{"sys.rbac:perm", "权限-权限码", "BUTTON", ""},
		{"sys.inspect:checkin", "巡检-开工签到", "BUTTON", ""},
		{"sys.inspect:point", "巡检-工位点检", "BUTTON", ""},
		{"sys.inspect:process", "巡检-过程巡检", "BUTTON", ""},
		{"sys.inspect:done", "巡检-完工确认", "BUTTON", ""},
		{"sys.inspect:alarm", "巡检-异常上报", "BUTTON", ""},
		{"sys.inspect:view", "巡检-记录查看", "BUTTON", ""},
	}
	for _, b := range buttons {
		if s.ctx.EntClient.Permission.Query().Where(permission.Code(b.code)).ExistX(ctx) {
			continue
		}
		_ = s.ctx.EntClient.Permission.Create().
			SetCode(b.code).SetName(b.name).SetType(b.typ).SetPath(b.path).Exec(ctx)
	}

	// 4. 12 个工位默认工艺流程 + 工位绑定（流程挂 process_code，工位绑流程）
	seedFlowsAndStations(ctx, s)
	return nil
}

func seedFlowsAndStations(ctx context.Context, s *Service) {
	// 每个工位（1~12）若未配置工艺流程，则创建默认流程并绑定；已有流程则跳过
	for i := 1; i <= 12; i++ {
		flow, err := s.ctx.EntClient.ProcessFlow.Query().
			Where(processflow.ProcessCode(i)).
			Order(ent.Asc(processflow.FieldID)).First(ctx)
		if err != nil {
			flow, _ = s.ctx.EntClient.ProcessFlow.Create().
				SetName("工位" + strconv.Itoa(i) + "_默认").
				SetProcessCode(i).SetStatus("ACTIVE").SetRemark("默认工艺流程").Save(ctx)
		}
		if flow == nil {
			continue
		}
		cnt, _ := s.ctx.EntClient.ProcessStep.Query().Where(processstep.FlowId(flow.ID)).Count(ctx)
		if cnt == 0 {
			stepID := 0
			if step, err := s.ctx.EntClient.ProcessStep.Create().
				SetFlowId(flow.ID).SetProcessCode(i).SetSeq(1).SetName("装配完成").
				SetCollectType("NONE").Save(ctx); err == nil {
				stepID = step.ID
			}
			if i == 3 && stepID > 0 {
				_, _ = s.ctx.EntClient.ProcessStep.Create().
					SetFlowId(flow.ID).SetProcessCode(i).SetSeq(2).SetName("拧紧扭矩").
					SetCollectType("AUTO").SetIsTorque(true).Save(ctx)
			}
		}
		// 工位 N 绑定工位 N 的默认流程
		st, err := s.ctx.EntClient.Station.Query().Where(station.StationNo(i)).First(ctx)
		if err != nil {
			_, _ = s.ctx.EntClient.Station.Create().
				SetStationNo(i).SetName("装配工位" + strconv.Itoa(i)).
				SetFlowId(flow.ID).SetStatus("ENABLED").Save(ctx)
		} else if st.FlowId == 0 {
			_, _ = s.ctx.EntClient.Station.UpdateOneID(st.ID).SetFlowId(flow.ID).Save(ctx)
		}
	}
}

// mergeCodes 合并两份权限码列表（去重、保序）
func mergeCodes(a, b []string) []string {
	seen := map[string]bool{}
	out := make([]string, 0, len(a)+len(b))
	for _, c := range append(append([]string{}, a...), b...) {
		if c == "" || seen[c] {
			continue
		}
		seen[c] = true
		out = append(out, c)
	}
	return out
}