package project

import (
	"context"
	"fmt"
	"net/http"

	"management/internal/db/model/view"
	"management/internal/pkg/convertor"
	"management/internal/pkg/tpl"
)

func (h *projectHandler) Dashboard(w http.ResponseWriter, r *http.Request) {
	switch r.Method {
	case http.MethodGet:
		pp, _ := h.biz.ProjectV1().ListHtml(r.Context())
		h.render.HTML(w, r, "project/dashboard.tmpl", map[string]any{
			"Projects": pp,
		})
	case http.MethodPost:
		ctx := r.Context()
		t := r.PostFormValue("type")
		if t == "project" {
			var projectIncome float64
			var projectExpense float64
			projectID := convertor.ConvertInt[int64](r.PostFormValue("projectID"), 0)
			if projectID == 0 {
				si, _ := h.biz.IncomeV1().Sum(ctx)
				projectIncome = convertor.NumericToFloat64(si)
				se, _ := h.biz.ExpenseV1().Sum(ctx)
				projectExpense = convertor.NumericToFloat64(se)
			} else {
				pi, _ := h.biz.IncomeV1().SumByProjectID(ctx, projectID)
				projectIncome = convertor.NumericToFloat64(pi)
				pe, _ := h.biz.ExpenseV1().SumByProjectID(ctx, projectID)
				projectExpense = convertor.NumericToFloat64(pe)
			}

			projectProfit := projectIncome - projectExpense
			var projectProfitRate float64 = 0
			if projectExpense > 0 {
				projectProfitRate = projectProfit / projectExpense
			}

			res := &view.DashboardProject{
				ProjectIncome:        projectIncome,
				ProjectExpense:       projectExpense,
				ProjectProfit:        projectProfit,
				ProjectProfitRate:    fmt.Sprintf("%0.2f%%", projectProfitRate*100),
				IncomeExpenseEcharts: h.incomeExpenseEcharts(ctx, projectID),
				IncomeEcharts:        h.incomeEcharts(ctx, projectID),
				ExpenseEcharts:       h.expenseEcharts(ctx, projectID),
			}
			h.render.JSON(w, tpl.Response{Success: true, Message: "ok", Data: res})
			return
		} else if t == "budget" {
		}
		h.render.JSONERR(w, "failed to valid type")
	default:
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
	}
}

func (h *projectHandler) incomeExpenseEcharts(ctx context.Context, projectId int64) view.EchartsOption {
	var name []string
	var income []float64
	var expense []float64

	if projectId == 0 {
		rows, err := h.biz.ProjectV1().Statistics(ctx)
		if err != nil || len(rows) == 0 {
			return view.EchartsOption{}
		}

		for _, row := range rows {
			name = append(name, row.Name)
			income = append(income, convertor.NumericToFloat64(row.Income))
			expense = append(expense, convertor.NumericToFloat64(row.Expense))
		}
	} else {
		row, err := h.biz.ProjectV1().StatisticsItem(ctx, projectId)
		if err != nil || row == nil {
			return view.EchartsOption{}
		}
		name = append(name, row.Name)
		income = append(income, convertor.NumericToFloat64(row.Income))
		expense = append(expense, convertor.NumericToFloat64(row.Expense))
	}

	return view.EchartsOption{
		Title: view.Title{
			Text:     "项目收支情况",
			Left:     "center",
			Top:      2,
			FontSize: 15,
			TextStyle: view.TextStyle{
				Color:      "#666666",
				FontWeight: "normal",
			},
		},
		Color: []string{"#fed46b", "#2194ff"},
		ToolTip: view.ToolTip{
			Trigger: "axis",
			AxisPointer: view.AxisPointer{
				Type: "shadow",
			},
		},
		Grid: view.Grid{
			Left:         "3%",
			Right:        "4%",
			Bottom:       "10%",
			ContainLabel: true,
		},
		Legend: view.Legend{
			Left: "center",
			Top:  "bottom",
			Data: []string{"支出金额", "收入金额"},
		},
		XAxis: []view.XAxis{
			{
				Type: "category",
				Data: name,
				AxisTick: view.AxisTick{
					AlignWithLabel: true,
				},
			},
		},
		YAxis: []view.YAxis{
			{
				Type: "value",
				Name: "单位：元",
			},
		},
		BarMaxWidth: "30",
		Label: view.Label{
			Show:     true,
			Position: "top",
		},
		Series: []view.Series{
			{
				Name: "支出金额",
				Type: "bar",
				Data: expense,
				ItemStyle: view.ItemStyle{
					Normal: view.Normal{
						Color: "#f89588",
					},
				},
			},
			{
				Name: "收入金额",
				Type: "bar",
				Data: income,
				ItemStyle: view.ItemStyle{
					Normal: view.Normal{
						Color: "#76da91",
					},
				},
			},
		},
	}
}

func (h *projectHandler) incomeEcharts(ctx context.Context, projectId int64) view.EchartsOption {
	var name []string
	data := []view.DataItem{}

	if projectId == 0 {
		rows, err := h.biz.IncomeV1().Statistics(ctx)
		if err != nil || len(rows) == 0 {
			return view.EchartsOption{}
		}

		for _, row := range rows {
			name = append(name, row.IncomeTypeName)
			data = append(data, view.DataItem{
				Name:  row.IncomeTypeName,
				Value: convertor.NumericToFloat64(row.TotalAmount),
			})
		}
	} else {
		rows, err := h.biz.IncomeV1().StatisticsByProjectID(ctx, projectId)
		if err != nil || len(rows) == 0 {
			return view.EchartsOption{}
		}

		for _, row := range rows {
			name = append(name, row.IncomeTypeName)
			data = append(data, view.DataItem{
				Name:  row.IncomeTypeName,
				Value: convertor.NumericToFloat64(row.TotalAmount),
			})
		}
	}

	return view.EchartsOption{
		Title: view.Title{
			Text:     "收入分布",
			Left:     "center",
			Orient:   "vertical",
			FontSize: 15,
			TextStyle: view.TextStyle{
				Color:      "#666666",
				FontWeight: "normal",
			},
		},
		ToolTip: view.ToolTip{
			Trigger: "item",
		},
		Legend: view.Legend{
			Left: "center",
			Top:  "bottom",
			Data: name,
		},
		Color: []string{"#63b2ee", "#76da91", "#f8cb7f", "#f89588", "#7cd6cf", "#9192ab", "#7898e1", "#efa666", "#eddd86", "#9987ce", "#63b2ee", "#76da91"},
		Series: []view.Series{
			{
				Type:   "pie",
				Radius: "50%",
				Data:   data,
				Label: view.Label{
					Show: true,
					TextStyle: view.TextStyle{
						Color: "#666666",
					},
					Normal: view.LableNormal{
						Formatter: "{c} ({d}%)",
						TextStyle: view.TextStyle{
							Color:      "#666666",
							FontWeight: "normal",
						},
					},
				},
			},
		},
	}
}

func (h *projectHandler) expenseEcharts(ctx context.Context, projectId int64) view.EchartsOption {
	var name []string
	data := []view.DataItem{}

	if projectId == 0 {
		rows, err := h.biz.ExpenseV1().Statistics(ctx)
		if err != nil || len(rows) == 0 {
			return view.EchartsOption{}
		}

		for _, row := range rows {
			name = append(name, row.ExpensesTypeName)
			data = append(data, view.DataItem{
				Name:  row.ExpensesTypeName,
				Value: convertor.NumericToFloat64(row.TotalAmount),
			})
		}
	} else {
		rows, err := h.biz.ExpenseV1().StatisticsByProjectID(ctx, projectId)
		if err != nil || len(rows) == 0 {
			return view.EchartsOption{}
		}

		for _, row := range rows {
			name = append(name, row.ExpensesTypeName)
			data = append(data, view.DataItem{
				Name:  row.ExpensesTypeName,
				Value: convertor.NumericToFloat64(row.TotalAmount),
			})
		}
	}

	return view.EchartsOption{
		Title: view.Title{
			Text:     "支出分布",
			Left:     "center",
			Orient:   "vertical",
			FontSize: 15,
			TextStyle: view.TextStyle{
				Color:      "#666666",
				FontWeight: "normal",
			},
		},
		ToolTip: view.ToolTip{
			Trigger: "item",
		},
		Legend: view.Legend{
			Left: "center",
			Top:  "bottom",
			Data: name,
		},
		Color: []string{"#63b2ee", "#76da91", "#f8cb7f", "#f89588", "#7cd6cf", "#9192ab", "#7898e1", "#efa666", "#eddd86", "#9987ce", "#63b2ee", "#76da91"},
		Series: []view.Series{
			{
				Type:   "pie",
				Radius: "50%",
				Data:   data,
				Label: view.Label{
					Show: true,
					TextStyle: view.TextStyle{
						Color: "#666666",
					},
					Normal: view.LableNormal{
						Formatter: "{c} ({d}%)",
						TextStyle: view.TextStyle{
							Color:      "#666666",
							FontWeight: "normal",
						},
					},
				},
			},
		},
	}

	// return view.EchartsOption{
	// 	Title: view.Title{
	// 		Text:     "支出分布",
	// 		Left:     "center",
	// 		Top:      2,
	// 		FontSize: 15,
	// 		TextStyle: view.TextStyle{
	// 			Color:      "#666666",
	// 			FontWeight: "normal",
	// 		},
	// 	},
	// 	Color: []string{"#fed46b", "#2194ff"},
	// 	ToolTip: view.ToolTip{
	// 		Trigger: "axis",
	// 		AxisPointer: view.AxisPointer{
	// 			Type: "shadow",
	// 		},
	// 	},
	// 	Grid: view.Grid{
	// 		Left:         "3%",
	// 		Right:        "4%",
	// 		Bottom:       "10%",
	// 		ContainLabel: true,
	// 	},
	// 	XAxis: []view.XAxis{
	// 		{
	// 			Type: "category",
	// 			Data: name,
	// 			AxisTick: view.AxisTick{
	// 				AlignWithLabel: true,
	// 			},
	// 		},
	// 	},
	// 	YAxis: []view.YAxis{
	// 		{
	// 			Type: "value",
	// 			Name: "单位：元",
	// 		},
	// 	},
	// 	BarMaxWidth: "30",
	// 	Label: view.Label{
	// 		Show:     true,
	// 		Position: "top",
	// 	},
	// 	Series: []view.Series{
	// 		{
	// 			Type: "bar",
	// 			Data: expense,
	// 			ItemStyle: view.ItemStyle{
	// 				Normal: view.Normal{
	// 					Color: "#f89588",
	// 				},
	// 			},
	// 		},
	// 	},
	// }
}