import { createSlice, createAsyncThunk } from "@reduxjs/toolkit";
import { fetchClient } from "@/lib/api/fetchClient";

// Types
export interface CorsEntry {
    id: string;
    origin: string;
    description?: string; // For whitelist
    reason?: string;      // For blacklist
    is_active: boolean;
    created_by: string;
    created_at: string;
    updated_at: string;
}

interface CorsState {
    whitelist: CorsEntry[];
    blacklist: CorsEntry[];
    isLoading: boolean;
    error: string | null;
}

const initialState: CorsState = {
    whitelist: [],
    blacklist: [],
    isLoading: false,
    error: null,
};

// Async Thunks

// --- WHITELIST ---

export const fetchWhitelists = createAsyncThunk(
    "cors/fetchWhitelists",
    async (_, { rejectWithValue }) => {
        try {
            return await fetchClient("/settings/cors/whitelist");
        } catch (error: any) {
            return rejectWithValue(error.message);
        }
    }
);

export const createWhitelist = createAsyncThunk(
    "cors/createWhitelist",
    async (data: { origin: string; description: string }, { rejectWithValue }) => {
        try {
            return await fetchClient("/settings/cors/whitelist", {
                method: "POST",
                body: JSON.stringify(data),
            });
        } catch (error: any) {
            return rejectWithValue(error.message);
        }
    }
);

export const updateWhitelist = createAsyncThunk(
    "cors/updateWhitelist",
    async ({ id, data }: { id: string; data: Partial<CorsEntry> }, { rejectWithValue }) => {
        try {
            await fetchClient(`/settings/cors/whitelist/${id}`, {
                method: "PUT",
                body: JSON.stringify(data),
            });
            return { id, data };
        } catch (error: any) {
            return rejectWithValue(error.message);
        }
    }
);

export const deleteWhitelist = createAsyncThunk(
    "cors/deleteWhitelist",
    async (id: string, { rejectWithValue }) => {
        try {
            await fetchClient(`/settings/cors/whitelist/${id}`, {
                method: "DELETE",
            });
            return id;
        } catch (error: any) {
            return rejectWithValue(error.message);
        }
    }
);

// --- BLACKLIST ---

export const fetchBlacklists = createAsyncThunk(
    "cors/fetchBlacklists",
    async (_, { rejectWithValue }) => {
        try {
            return await fetchClient("/settings/cors/blacklist");
        } catch (error: any) {
            return rejectWithValue(error.message);
        }
    }
);

export const createBlacklist = createAsyncThunk(
    "cors/createBlacklist",
    async (data: { origin: string; reason: string }, { rejectWithValue }) => {
        try {
            return await fetchClient("/settings/cors/blacklist", {
                method: "POST",
                body: JSON.stringify(data),
            });
        } catch (error: any) {
            return rejectWithValue(error.message);
        }
    }
);

export const updateBlacklist = createAsyncThunk(
    "cors/updateBlacklist",
    async ({ id, data }: { id: string; data: Partial<CorsEntry> }, { rejectWithValue }) => {
        try {
            await fetchClient(`/settings/cors/blacklist/${id}`, {
                method: "PUT",
                body: JSON.stringify(data),
            });
            return { id, data };
        } catch (error: any) {
            return rejectWithValue(error.message);
        }
    }
);

export const deleteBlacklist = createAsyncThunk(
    "cors/deleteBlacklist",
    async (id: string, { rejectWithValue }) => {
        try {
            await fetchClient(`/settings/cors/blacklist/${id}`, {
                method: "DELETE",
            });
            return id;
        } catch (error: any) {
            return rejectWithValue(error.message);
        }
    }
);

const corsSlice = createSlice({
    name: "cors",
    initialState,
    reducers: {},
    extraReducers: (builder) => {
        // Fetch Whitelists
        builder.addCase(fetchWhitelists.pending, (state) => {
            state.isLoading = true;
            state.error = null;
        });
        builder.addCase(fetchWhitelists.fulfilled, (state, action) => {
            state.isLoading = false;
            state.whitelist = action.payload as CorsEntry[];
        });
        builder.addCase(fetchWhitelists.rejected, (state, action) => {
            state.isLoading = false;
            state.error = action.payload as string;
        });

        // Create Whitelist
        builder.addCase(createWhitelist.fulfilled, (state, action) => {
            state.whitelist.push(action.payload as CorsEntry);
        });

        // Update Whitelist
        builder.addCase(updateWhitelist.fulfilled, (state, action) => {
            const index = state.whitelist.findIndex((item) => item.id === action.payload.id);
            if (index !== -1) {
                state.whitelist[index] = { ...state.whitelist[index], ...action.payload.data };
            }
        });

        // Delete Whitelist
        builder.addCase(deleteWhitelist.fulfilled, (state, action) => {
            state.whitelist = state.whitelist.filter((item) => item.id !== action.payload);
        });

        // Fetch Blacklists
        builder.addCase(fetchBlacklists.pending, (state) => {
            state.isLoading = true;
            state.error = null;
        });
        builder.addCase(fetchBlacklists.fulfilled, (state, action) => {
            state.isLoading = false;
            state.blacklist = action.payload as CorsEntry[];
        });
        builder.addCase(fetchBlacklists.rejected, (state, action) => {
            state.isLoading = false;
            state.error = action.payload as string;
        });

        // Create Blacklist
        builder.addCase(createBlacklist.fulfilled, (state, action) => {
            state.blacklist.push(action.payload as CorsEntry);
        });

        // Update Blacklist
        builder.addCase(updateBlacklist.fulfilled, (state, action) => {
            const index = state.blacklist.findIndex((item) => item.id === action.payload.id);
            if (index !== -1) {
                state.blacklist[index] = { ...state.blacklist[index], ...action.payload.data };
            }
        });

        // Delete Blacklist
        builder.addCase(deleteBlacklist.fulfilled, (state, action) => {
            state.blacklist = state.blacklist.filter((item) => item.id !== action.payload);
        });
    },
});

export default corsSlice.reducer;